diff --git a/.github/workflows/deploy-site.yml b/.github/workflows/deploy-site.yml
index d42e008..6fdf4e5 100644
--- a/.github/workflows/deploy-site.yml
+++ b/.github/workflows/deploy-site.yml
@@ -19,7 +19,8 @@ name: deploy-site (marketing site)
 # from site/functions/. Its secrets (RESEND_API_KEY, RESEND_SEGMENT_ID,
 # WAITLIST_FROM_EMAIL) are NOT deploy inputs: set once with
 # `wrangler pages secret put <NAME> --project-name pcbjam-site`.
-# See deploy/site/README.md for the full runbook.
+# deploy/site/README.md documents the setup, the invariants that fail silently,
+# and deploy/site/verify.sh (a fuller health check than step 5 below).
 #
 # Secrets (Settings → Secrets → Actions) — already present for demo/editor:
 #   CLOUDFLARE_API_TOKEN   Cloudflare Pages:Edit
diff --git a/CLAUDE.md b/CLAUDE.md
index 74b66e8..8c96da3 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -39,4 +39,5 @@ from; because it pins the kicad + wxwidgets submodule revisions implicitly, it i
 our GPLv3 corresponding-source pointer (see /licenses). It resolves automatically
 at build time in site/src/components/Footer.astro (CF_PAGES_COMMIT_SHA / GITHUB_SHA
 in CI, `git rev-parse` locally) — no manual bump needed.
-The Cloudflare setup + cutover runbook is in pcbjam/deploy/site/README.md.
+Cloudflare setup, the invariants that fail silently, and the health check
+(deploy/site/verify.sh) are documented in pcbjam/deploy/site/README.md.
diff --git a/deploy/site/00-baseline.sh b/deploy/site/00-baseline.sh
deleted file mode 100755
index 171fc9b..0000000
--- a/deploy/site/00-baseline.sh
+++ /dev/null
@@ -1,77 +0,0 @@
-#!/usr/bin/env bash
-# Freeze the LIVE Vercel behaviour as the reference every later step is compared
-# against. Read-only; needs no Cloudflare credentials. Run this while Vercel is
-# still serving — you cannot re-create it afterwards.
-#
-#   deploy/site/00-baseline.sh [--force]
-#
-# Two probes are EXPECTED to fail here: post_coi (the blog post's COOP/COEP) is
-# genuinely broken in production today — the page's canonical is the
-# trailing-slash URL and that URL serves 200 with no isolation headers. Recording
-# it is the point: 08-verify-prod.sh asserts those same probes PASS afterwards,
-# so the migration proves it fixed the bug rather than porting it.
-set -euo pipefail
-. "$(dirname "$0")/lib/common.sh"
-. "$(dirname "$0")/lib/parity.sh"
-
-require_cmd curl dig awk sed jq
-
-OUT="$STATE_DIR/baseline/vercel"
-if [ -d "$OUT" ] && [ "${1:-}" != "--force" ]; then
-  die "baseline already exists at $OUT — refusing to overwrite (use --force).
-     Re-baselining after cutover would silently replace the reference."
-fi
-mkdir -p "$OUT"
-
-section "confirming $PROD_BASE is still served by Vercel"
-hdrs="$(_headers "$PROD_BASE/")"
-if [ -z "$(_hdr "$hdrs" x-vercel-id)" ]; then
-  die "no x-vercel-id header on $PROD_BASE — this host is not on Vercel any more.
-     Baselining a Cloudflare response as 'the Vercel reference' would be useless."
-fi
-echo "ok: x-vercel-id present"
-
-section "DNS + SOA snapshot"
-{
-  echo "# captured $(date -u +%Y-%m-%dT%H:%M:%SZ)"
-  echo "apex_cname=$(dig +short CNAME "$ZONE_NAME" || true)"
-  echo "www_cname=$(dig +short CNAME "www.$ZONE_NAME" || true)"
-  echo "ns=$(dig +short NS "$ZONE_NAME" | sort | tr '\n' ' ')"
-  # The SOA minimum is the NEGATIVE cache TTL. It is the number that makes
-  # delete-then-create dangerous: a resolver that asks while the record is gone
-  # caches NODATA for this long, and you cannot flush it.
-  echo "soa=$(dig +short SOA "$ZONE_NAME" || true)"
-  echo "soa_minimum_ttl=$(dig +short SOA "$ZONE_NAME" | awk '{print $NF}')"
-} | tee "$OUT/dns.txt"
-
-section "page titles (used to detect a soft-404 later)"
-printf 'home_title=%s\n' "$(_title "$PROD_BASE/")" | tee "$OUT/titles.txt"
-
-section "header snapshots"
-for p in / /pricing /blog /privacy /blog/porting-kicad-graphics-to-webgl-in-2026 /gerber-demo/boot.js; do
-  f="$(printf '%s' "$p" | sed 's|/|_|g')"; [ "$f" = "_" ] && f="_home"
-  t="$(_trace "$PROD_BASE$p")"; eff="$(printf '%s' "$t" | cut -f1)"
-  {
-    echo "# requested: $PROD_BASE$p"
-    echo "# effective: $eff (hops $(printf '%s' "$t" | cut -f3))"
-    # Drop volatile headers so a later diff shows real changes, not timestamps.
-    _headers "$eff" | grep -vE '^(date|age|etag|last-modified|content-length|server|cf-ray|cf-cache-status|nel|report-to|alt-svc|set-cookie|x-vercel-id|x-vercel-cache|x-matched-path|expires|via):' | sort
-  } > "$OUT/$f.headers"
-  echo "  $p -> $OUT/$f.headers"
-done
-
-rc=0
-assert_parity "$PROD_BASE" --scope prod || rc=$?
-assert_apex_redirect "$APEX_BASE" || rc=$?
-
-{
-  echo "# baseline captured $(date -u +%Y-%m-%dT%H:%M:%SZ) against $PROD_BASE (Vercel)"
-  echo "# parity exit code: $rc  (non-zero is EXPECTED — see the header of this script)"
-} > "$OUT/parity-exit.txt"
-
-section "done"
-echo "Baseline written to $OUT"
-echo
-echo "Read the FAIL rows above and keep them: they are the 'before' half of the"
-echo "COOP/COEP fix. 08-verify-prod.sh requires those same probes to pass."
-echo "done: file://$OUT"
diff --git a/deploy/site/01-preflight.sh b/deploy/site/01-preflight.sh
deleted file mode 100755
index d4fc6e7..0000000
--- a/deploy/site/01-preflight.sh
+++ /dev/null
@@ -1,120 +0,0 @@
-#!/usr/bin/env bash
-# Prove every credential and token scope the later steps need, and snapshot DNS
-# for rollback. Read-only — makes no changes anywhere.
-#
-#   export CLOUDFLARE_API_TOKEN=...  CLOUDFLARE_ACCOUNT_ID=...
-#   deploy/site/01-preflight.sh
-#
-# Re-run this freely; it is the script to come back to after fixing a scope or
-# logging wrangler in.
-set -euo pipefail
-. "$(dirname "$0")/lib/common.sh"
-. "$(dirname "$0")/lib/cf-api.sh"
-
-require_cmd curl dig jq awk node npm npx shasum
-
-ok=0; bad=0
-chk() { # chk "<label>" <0|1> ["remediation"]
-  if [ "$2" = 0 ]; then printf '  ok    %s\n' "$1"; ok=$((ok+1))
-  else printf '  FAIL  %s\n' "$1"; [ -n "${3:-}" ] && printf '        -> %s\n' "$3"; bad=$((bad+1)); fi
-}
-
-section "toolchain"
-nv="$(node -v | sed 's/^v//')"
-node_ok=1
-# Astro 6 needs >= 22.12.0
-maj="${nv%%.*}"; rest="${nv#*.}"; min="${rest%%.*}"
-if [ "$maj" -gt 22 ] 2>/dev/null || { [ "$maj" = 22 ] && [ "$min" -ge 12 ]; } 2>/dev/null; then node_ok=0; fi
-chk "node $nv >= 22.12 (Astro 6)" $node_ok "install Node 22.12+ (nvm use 22)"
-chk "wrangler reachable ($($WRANGLER --version 2>/dev/null | head -1))" \
-    "$($WRANGLER --version >/dev/null 2>&1; echo $?)"
-
-section "cloudflare auth"
-if [ -n "${CLOUDFLARE_API_TOKEN:-}" ] && [ -n "${CLOUDFLARE_ACCOUNT_ID:-}" ]; then
-  chk "CLOUDFLARE_API_TOKEN + CLOUDFLARE_ACCOUNT_ID exported" 0
-  tv="$(cf_api GET /user/tokens/verify 2>/dev/null || true)"
-  st="$(printf '%s' "$tv" | jq -r '.result.status // "unknown"' 2>/dev/null || echo unknown)"
-  chk "token status = active (got '$st')" "$([ "$st" = active ] && echo 0 || echo 1)"
-else
-  chk "CLOUDFLARE_API_TOKEN + CLOUDFLARE_ACCOUNT_ID exported" 1 \
-    "the API steps (03,07,09) need both. Create a token with the scopes listed in lib/cf-api.sh"
-  wo="$($WRANGLER whoami 2>&1 || true)"
-  case "$wo" in
-    *"Not logged in"*|*"could not be refreshed"*)
-      chk "wrangler logged in" 1 "run: $WRANGLER login   (the local token is expired)" ;;
-    *) chk "wrangler logged in" 0 ;;
-  esac
-fi
-
-if [ -n "${CLOUDFLARE_API_TOKEN:-}" ]; then
-  section "zone"
-  zid="$(cf_zone_id 2>/dev/null || true)"
-  chk "zone $ZONE_NAME resolved (${zid:-none})" "$([ -n "$zid" ] && echo 0 || echo 1)"
-
-  if [ -n "$zid" ]; then
-    section "token scopes (each probe maps to one permission)"
-    cf_api GET "/zones/$zid/dns_records?per_page=5" >/dev/null 2>&1
-    chk "Zone -> DNS -> Read/Edit" $?
-    # 404 here is fine and expected — it means the redirect phase has no ruleset
-    # yet. 403 is the failure we are probing for.
-    rs="$($CURL_BIN -sS "$CF_API/zones/$zid/rulesets/phases/http_request_dynamic_redirect/entrypoint" \
-           -H "Authorization: Bearer $(cf_token)" || true)"
-    code="$(printf '%s' "$rs" | jq -r '.errors[0].code // "ok"' 2>/dev/null)"
-    chk "Zone -> Dynamic Redirect -> Edit (probe code=$code)" \
-        "$([ "$code" = "ok" ] || [ "$code" = "10000" ] || printf '%s' "$rs" | jq -e '.success==false and (.errors[0].code==1002 or .errors[0].code==10000)' >/dev/null 2>&1; echo $?)" \
-        "add 'Dynamic Redirect: Edit' (sometimes shown as Config/Transform Rules) to the token"
-    cf_api GET "/zones/$zid/settings/security_header" >/dev/null 2>&1
-    chk "Zone -> Zone Settings -> Edit (HSTS)" $?
-    cf_api GET "/accounts/$(cf_account)/pages/projects" >/dev/null 2>&1
-    chk "Account -> Cloudflare Pages -> Edit" $?
-
-    section "free-plan redirect headroom"
-    nrules="$(printf '%s' "$rs" | jq '.result.rules | length' 2>/dev/null || echo 0)"
-    [ "$nrules" = "null" ] && nrules=0
-    chk "existing dynamic redirects: $nrules (< 10 on the free plan)" \
-        "$([ "$nrules" -lt 10 ] && echo 0 || echo 1)"
-
-    section "DNS snapshot -> state/dns-before.json (rollback source of truth)"
-    cf_dns_list > "$STATE_DIR/state/dns-before.json"
-    for spec in "$ZONE_NAME:CNAME" "www.$ZONE_NAME:CNAME"; do
-      n="${spec%%:*}"; t="${spec##*:}"
-      c="$(jq -r --arg n "$n" --arg t "$t" '.result[]|select(.name==$n and .type==$t)|.content' \
-            "$STATE_DIR/state/dns-before.json" | head -1)"
-      chk "$n $t -> ${c:-MISSING} (expect $VERCEL_DNS_TARGET)" \
-          "$([ "$c" = "$VERCEL_DNS_TARGET" ] && echo 0 || echo 1)" \
-          "the record moved since this migration was planned — re-read the plan before continuing"
-    done
-    mx="$(jq -r '.result[]|select(.type=="MX")|.content' "$STATE_DIR/state/dns-before.json" | head -1)"
-    chk "Google MX still present ($mx) — must survive untouched" \
-        "$([ -n "$mx" ] && echo 0 || echo 1)"
-  fi
-fi
-
-section "nameservers"
-ns="$(dig +short NS "$ZONE_NAME" | tr '\n' ' ')"
-case "$ns" in *becky*|*ernest*) chk "on Cloudflare NS ($ns)" 0 ;;
-  *) chk "on Cloudflare NS ($ns)" 1 "the zone must be on Cloudflare nameservers" ;;
-esac
-
-section "vercel (env-var names for 04-set-secrets; detach/rollback for 09/99)"
-# Deliberately via npx rather than a global `vercel` binary — that is how this
-# repo invokes it everywhere else, and a global install is not a prerequisite.
-if [ "${SKIP_VERCEL_CHECK:-0}" != 1 ]; then
-  names="$(npx --yes vercel@latest env ls production --project "$VERCEL_PROJECT" --scope "$VERCEL_TEAM" 2>/dev/null \
-           | awk '/^ [A-Z]/{print $1}' | sort | tr '\n' ' ' || true)"
-  echo "  env var NAMES on Vercel (values never read): ${names:-<unavailable>}"
-  [ -n "$names" ] && printf '%s\n' "$names" > "$STATE_DIR/state/vercel-env-names.txt"
-  for want in RESEND_API_KEY RESEND_SEGMENT_ID WAITLIST_FROM_EMAIL; do
-    case " $names " in *" $want "*) chk "$want present on Vercel" 0 ;;
-      *) chk "$want present on Vercel" 1 "expected it there; 04-set-secrets.sh needs its value" ;;
-    esac
-  done
-else
-  warn "SKIP_VERCEL_CHECK=1 — skipping the Vercel probe"
-fi
-
-section "summary"
-echo "  $ok ok, $bad failed"
-[ "$bad" -eq 0 ] || die "preflight failed — fix the FAIL rows above before continuing."
-stamp_write 01-preflight "zone=${zid:-unknown}"
-echo "done: preflight ok (zone=${zid:-unknown})"
diff --git a/deploy/site/02-verify-local.sh b/deploy/site/02-verify-local.sh
deleted file mode 100755
index f9a7691..0000000
--- a/deploy/site/02-verify-local.sh
+++ /dev/null
@@ -1,121 +0,0 @@
-#!/usr/bin/env bash
-# Build the site and run it the way Cloudflare Pages will, then sweep it. This is
-# the gate: 05-deploy.sh refuses to deploy a tree that has not passed here.
-#
-#   deploy/site/02-verify-local.sh [--port 8788] [--skip-build] [--keep-running]
-#
-# Writes a TEMPORARY .dev.vars containing a deliberately BOGUS RESEND_API_KEY.
-# That is on purpose: a valid-email POST must then come back 502 send_failed,
-# which proves the `resend` SDK actually resolved and issued a request under the
-# Pages runtime. A module-resolution error instead means nodejs_compat isn't
-# taking effect (it is declared in site/wrangler.toml).
-set -euo pipefail
-. "$(dirname "$0")/lib/common.sh"
-. "$(dirname "$0")/lib/parity.sh"
-
-require_cmd curl jq awk sed node npm npx
-
-PORT=8788; SKIP_BUILD=0; KEEP=0
-while [ $# -gt 0 ]; do
-  case "$1" in
-    --port) PORT="$2"; shift 2 ;;
-    --skip-build) SKIP_BUILD=1; shift ;;
-    --keep-running) KEEP=1; shift ;;
-    *) die "unknown arg: $1" ;;
-  esac
-done
-
-cd "$SITE_DIR"
-
-section "structural checks (before spending time on a build)"
-[ -f functions/api/waitlist.ts ] || die "functions/api/waitlist.ts is missing — the waitlist endpoint would 404"
-grep -q 'adapter:' astro.config.mjs && die "astro.config.mjs still configures an adapter; this deploy is pure static"
-grep -q 'astro:env/server' functions/api/waitlist.ts && \
-  die "functions/api/waitlist.ts imports astro:env/server, which does not exist in a Pages Function"
-for n in RESEND_API_KEY RESEND_SEGMENT_ID WAITLIST_FROM_EMAIL WAITLIST_ALLOWED_ORIGINS; do
-  grep -q "$n" functions/api/waitlist.ts || die "functions/api/waitlist.ts never reads $n"
-done
-echo "ok: no adapter, Function present, reads all four env names"
-
-if [ "$SKIP_BUILD" = 0 ]; then
-  section "npm ci + test + build"
-  npm ci
-  npm test
-  npm run build
-fi
-
-section "build output"
-for f in dist/404.html dist/_headers dist/_routes.json dist/index.html; do
-  [ -e "$f" ] || die "$f missing after build"
-  echo "  ok $f"
-done
-[ -d dist/server ] && die "dist/server exists — an adapter crept back in"
-[ -d .vercel ] && die ".vercel/ was produced — the Vercel adapter is still wired up"
-# A /* rule would isolate the landing page and break the YouTube hero embed.
-if grep -qE '^/\*[[:space:]]*$' dist/_headers; then
-  die "_headers contains a bare /* rule — that would apply COOP/COEP site-wide and break the YouTube embed on /"
-fi
-grep -q 'porting-kicad-graphics-to-webgl-in-2026/\*' dist/_headers \
-  || die "_headers has no trailing-slash rule for the blog post; COOP/COEP would land on the redirect, not the document"
-echo "ok: _headers scoped correctly, 404.html present"
-
-section "starting wrangler pages dev on :$PORT"
-if lsof -nP -iTCP:"$PORT" -sTCP:LISTEN >/dev/null 2>&1; then
-  die "port $PORT is already in use — stop the other process or pass --port"
-fi
-
-DEV_VARS_CREATED=0
-if [ -f .dev.vars ]; then
-  warn ".dev.vars already exists; leaving it alone (the 502 probe may not apply)"
-else
-  printf 'RESEND_API_KEY=re_bogus_key_for_local_verification_only\nRESEND_SEGMENT_ID=seg_local\nWAITLIST_FROM_EMAIL=PCBJam <hello@pcbjam.com>\n' > .dev.vars
-  DEV_VARS_CREATED=1
-fi
-
-LOG="$STATE_DIR/logs/pages-dev-$(date +%s).log"
-$WRANGLER pages dev --port "$PORT" --ip 127.0.0.1 > "$LOG" 2>&1 &
-DEV_PID=$!
-
-cleanup() {
-  [ "$KEEP" = 1 ] && { echo; echo "left running: http://127.0.0.1:$PORT (pid $DEV_PID)"; return; }
-  kill "$DEV_PID" 2>/dev/null || true
-  wait "$DEV_PID" 2>/dev/null || true
-  [ "$DEV_VARS_CREATED" = 1 ] && rm -f "$SITE_DIR/.dev.vars"
-  return 0
-}
-trap cleanup EXIT INT TERM
-
-for _ in $(seq 1 40); do
-  curl -sf "http://127.0.0.1:$PORT/" >/dev/null 2>&1 && break
-  sleep 0.5
-done
-curl -sf "http://127.0.0.1:$PORT/" >/dev/null 2>&1 \
-  || die "pages dev never became ready — see $LOG"
-grep -q 'valid header rules' "$LOG" && echo "ok: $(grep -o '[0-9]* valid header rules' "$LOG" | head -1) parsed"
-
-rc=0
-assert_parity "http://127.0.0.1:$PORT" --scope local --live-post || rc=$?
-
-section "resend SDK loads under the Pages runtime"
-# With the bogus key in .dev.vars this MUST be 502 send_failed. 200 would mean the
-# key never reached the Function; a 500 would mean the module failed to resolve.
-code="$(curl -sS -o "$STATE_DIR/state/live-post.json" -w '%{http_code}' \
-  -X POST "http://127.0.0.1:$PORT/api/waitlist" \
-  -H 'content-type: application/json' \
-  --data '{"email":"sdk-probe@example.com","source":"cfm-verify"}' 2>/dev/null || true)"
-body="$(cat "$STATE_DIR/state/live-post.json" 2>/dev/null || true)"
-if [ "$DEV_VARS_CREATED" = 1 ]; then
-  case "$code:$body" in
-    502:*send_failed*) echo "ok: 502 send_failed — SDK resolved and called Resend" ;;
-    200:*) echo "FAIL: 200 — the bogus RESEND_API_KEY never reached the Function"; rc=1 ;;
-    *) echo "FAIL: status=$code body=$body (expected 502 send_failed; a module error means nodejs_compat isn't applying)"; rc=1 ;;
-  esac
-else
-  echo "skipped (pre-existing .dev.vars): status=$code"
-fi
-
-[ "$rc" -eq 0 ] || die "local verification FAILED — do not deploy. Logs: $LOG"
-
-stamp_write 02-local-parity "port=$PORT"
-section "done"
-echo "done: local parity ok (ctx=$(ctx_hash)) — 05-deploy.sh will accept this tree"
diff --git a/deploy/site/03-ensure-project.sh b/deploy/site/03-ensure-project.sh
deleted file mode 100755
index e89b676..0000000
--- a/deploy/site/03-ensure-project.sh
+++ /dev/null
@@ -1,75 +0,0 @@
-#!/usr/bin/env bash
-# Idempotently ensure the Cloudflare Pages project exists with the right
-# production branch and compatibility settings.
-#
-#   deploy/site/03-ensure-project.sh            # dry run
-#   deploy/site/03-ensure-project.sh --apply
-#
-# Naming this "ensure" rather than "create" is the contract: running it twice is
-# normal and must not look like an error.
-set -euo pipefail
-. "$(dirname "$0")/lib/common.sh"
-. "$(dirname "$0")/lib/cf-api.sh"
-
-require_cmd curl jq npx
-parse_common_flags "$@"
-dry_banner
-
-section "project $PAGES_PROJECT"
-row="$($WRANGLER pages project list --json 2>/dev/null \
-        | jq -r --arg n "$PAGES_PROJECT" '.[] | select(."Project Name"==$n)')"
-if [ -n "$row" ]; then
-  echo "exists already"
-else
-  dry "create Pages project $PAGES_PROJECT (production branch: $PAGES_PROD_BRANCH)" -- \
-    $WRANGLER pages project create "$PAGES_PROJECT" \
-      --production-branch "$PAGES_PROD_BRANCH" \
-      --compatibility-date 2026-06-01 --compatibility-flags nodejs_compat
-  [ "$DRY_RUN" = 1 ] && { echo; echo "done: (dry run) would create $PAGES_PROJECT"; exit 0; }
-  row="$($WRANGLER pages project list --json 2>/dev/null \
-          | jq -r --arg n "$PAGES_PROJECT" '.[] | select(."Project Name"==$n)')"
-  [ -n "$row" ] || die "project still not listed after create"
-fi
-
-section "asserting settings"
-# `wrangler pages project list` reports the Git provider but not the production
-# branch, and the REST endpoint that would needs an API token. So prove the branch
-# EMPIRICALLY instead, from the deployments: if a deployment on $PAGES_PROD_BRANCH
-# is labelled Production, the project's production branch is that branch. That is
-# a stronger check than reading the setting.
-src="$(printf '%s' "$row" | jq -r '."Git Provider" // "?"')"
-dom="$(printf '%s' "$row" | jq -r '."Project Domains" // "?"')"
-
-if [ "$src" != "No" ]; then
-  die "project appears Git-connected (Git Provider: $src). Cloudflare's own builds
-     would race the uploads from deploy-site.yml. Disconnect it in the dashboard."
-fi
-echo "  ok  Direct Upload (not Git-connected)"
-
-prod="$($WRANGLER pages deployment list --project-name "$PAGES_PROJECT" \
-          --environment production --json 2>/dev/null || true)"
-nprod="$(printf '%s' "$prod" | jq 'length' 2>/dev/null || echo 0)"
-if [ "${nprod:-0}" -gt 0 ]; then
-  br="$(printf '%s' "$prod" | jq -r '.[0].Branch // "?"')"
-  env="$(printf '%s' "$prod" | jq -r '.[0].Environment // "?"')"
-  # The most expensive mistake available here: if the project's production branch
-  # is not what deploy-site.yml passes to --branch, every deploy lands as a
-  # PREVIEW and the live site silently never updates (see deploy-demo.yml).
-  if [ "$br" = "$PAGES_PROD_BRANCH" ] && [ "$env" = "Production" ]; then
-    echo "  ok  branch '$br' deploys land as $env"
-  else
-    die "latest production-environment deployment is branch='$br' env='$env',
-     but deploys use --branch '$PAGES_PROD_BRANCH'. If those disagree, every deploy
-     becomes a preview and www.pcbjam.com never updates. Fix it in
-     Pages -> $PAGES_PROJECT -> Settings -> Builds & deployments."
-  fi
-else
-  warn "no production deployment yet — the branch check runs after 05-deploy.sh"
-fi
-sub="$(printf '%s' "$dom" | sed 's/,.*//')"
-
-section "done"
-echo "note: the custom domain is NOT set here — there is no 'wrangler pages domain'"
-echo "      subcommand. 07-dns-cutover.sh attaches www.pcbjam.com via the API,"
-echo "      which needs a real API token (wrangler's OAuth login is zone:read only)."
-echo "done: https://${sub}"
diff --git a/deploy/site/04-set-secrets.sh b/deploy/site/04-set-secrets.sh
deleted file mode 100755
index 5eac5e7..0000000
--- a/deploy/site/04-set-secrets.sh
+++ /dev/null
@@ -1,104 +0,0 @@
-#!/usr/bin/env bash
-# Put the three waitlist secrets into the Pages project, for BOTH the production
-# and preview environments, without ever printing a value.
-#
-#   deploy/site/04-set-secrets.sh --prompt --apply
-#   deploy/site/04-set-secrets.sh --from-env-file site/.migration-secrets.env --apply
-#
-# Getting the values: pull them yourself, e.g.
-#   cd site && npx vercel env pull .migration-secrets.env \
-#              --environment=production --project pcbjam --scope pcbj-am
-# .migration-secrets.env is gitignored. Delete it when you're done.
-#
-# Pages applies environment-variable changes to NEW deployments only, so this must
-# run BEFORE 05-deploy.sh (or you must redeploy afterwards).
-set -euo pipefail
-. "$(dirname "$0")/lib/common.sh"
-
-no_xtrace                       # never run with tracing: values would be echoed
-require_cmd npx shasum awk
-
-NAMES="RESEND_API_KEY RESEND_SEGMENT_ID WAITLIST_FROM_EMAIL"
-MODE=prompt; ENV_FILE=""
-parse_common_flags "$@"
-set -- $CFM_ARGS
-while [ $# -gt 0 ]; do
-  case "$1" in
-    --prompt) MODE=prompt; shift ;;
-    --from-env-file) MODE=file; ENV_FILE="$2"; shift 2 ;;
-    "") shift ;;
-    *) die "unknown arg: $1" ;;
-  esac
-done
-dry_banner
-
-# WAITLIST_ALLOWED_ORIGINS is deliberately NOT settable here. It must stay unset
-# so the Function keeps its in-code default (https://demo.pcbjam.com), matching
-# what Vercel had. Setting it as a Pages secret would work but would hide the
-# allowlist from code review.
-guard_name() {
-  case "$1" in
-    WAITLIST_ALLOWED_ORIGINS)
-      die "refusing to set WAITLIST_ALLOWED_ORIGINS: it is intentionally unset so
-     the allowlist lives in functions/api/waitlist.ts where it is reviewable." ;;
-  esac
-  grep -q "$1" "$SITE_DIR/functions/api/waitlist.ts" \
-    || die "refusing to set $1: functions/api/waitlist.ts never reads it"
-}
-
-read_value() { # read_value NAME -> echoes the value (never logged)
-  _n="$1"
-  if [ "$MODE" = file ]; then
-    [ -f "$ENV_FILE" ] || die "env file not found: $ENV_FILE"
-    ( cd "$(dirname "$ENV_FILE")" && git check-ignore -q "$(basename "$ENV_FILE")" ) \
-      || die "$ENV_FILE is NOT gitignored — refusing to read secrets from a trackable file"
-    awk -F= -v k="$_n" '$1==k { sub(/^[^=]*=/,""); gsub(/^"|"$/,""); print; exit }' "$ENV_FILE"
-  else
-    printf 'value for %s (input hidden, empty to skip): ' "$_n" >&2
-    read -r -s _v; echo >&2
-    printf '%s' "$_v"
-  fi
-}
-
-section "setting secrets on $PAGES_PROJECT"
-set_count=0
-for n in $NAMES; do
-  guard_name "$n"
-  v="$(read_value "$n")"
-  if [ -z "$v" ]; then warn "$n: empty, skipped"; continue; fi
-  # Length + short hash only. Enough to compare against Vercel without ever
-  # revealing the value.
-  fp="$(printf '%s' "$v" | shasum -a 256 | cut -c1-8)"
-  echo "  $n: len=$(printf '%s' "$v" | wc -c | tr -d ' ') sha256=$fp"
-  for envname in production preview; do
-    if [ "$DRY_RUN" = 1 ]; then
-      echo "WOULD: pages secret put $n --project-name $PAGES_PROJECT --env $envname (value via stdin)"
-    else
-      # stdin, never argv — an argv value would be visible in `ps`.
-      printf '%s' "$v" | $WRANGLER pages secret put "$n" \
-        --project-name "$PAGES_PROJECT" --env "$envname" >/dev/null \
-        || die "failed to set $n ($envname)"
-      echo "  set: $n ($envname)"
-    fi
-  done
-  set_count=$((set_count+1))
-  unset v
-done
-
-if [ "$DRY_RUN" = 0 ]; then
-  section "verifying (names only)"
-  for envname in production preview; do
-    have="$($WRANGLER pages secret list --project-name "$PAGES_PROJECT" --env "$envname" 2>/dev/null || true)"
-    for n in $NAMES; do
-      case "$have" in *"$n"*) echo "  ok   $n ($envname)" ;;
-        *) die "$n missing from $envname after setting it" ;;
-      esac
-    done
-  done
-  stamp_write 04-secrets "count=$set_count"
-fi
-
-section "done"
-echo "Pages applies env changes to NEW deployments only — run 05-deploy.sh next."
-echo "If you used --from-env-file, delete it now:  rm -f $ENV_FILE"
-echo "done: $set_count secrets set (production + preview)"
diff --git a/deploy/site/05-deploy.sh b/deploy/site/05-deploy.sh
deleted file mode 100755
index 9a70101..0000000
--- a/deploy/site/05-deploy.sh
+++ /dev/null
@@ -1,71 +0,0 @@
-#!/usr/bin/env bash
-# Build and upload to Cloudflare Pages. Touches no DNS — after this the site is
-# live only on *.pages.dev, which is what makes the whole migration safe to
-# rehearse.
-#
-#   deploy/site/05-deploy.sh --preview              # dry run
-#   deploy/site/05-deploy.sh --preview --apply
-#   deploy/site/05-deploy.sh --production --apply
-set -euo pipefail
-. "$(dirname "$0")/lib/common.sh"
-
-require_cmd npx jq
-
-TARGET=""; SKIP_BUILD=0
-parse_common_flags "$@"
-set -- $CFM_ARGS
-while [ $# -gt 0 ]; do
-  case "$1" in
-    --preview)    TARGET=preview; shift ;;
-    --production) TARGET=production; shift ;;
-    --skip-build) SKIP_BUILD=1; shift ;;
-    "") shift ;;
-    *) die "unknown arg: $1" ;;
-  esac
-done
-[ -n "$TARGET" ] || die "pass --preview or --production"
-dry_banner
-
-# The gate. The stamp is keyed on a hash of src/, public/, functions/ and the
-# configs, so it cannot vouch for a tree that has been edited since.
-stamp_require 02-local-parity
-
-BRANCH="$PAGES_PROD_BRANCH"
-[ "$TARGET" = preview ] && BRANCH="cf-migrate-preview"
-
-cd "$SITE_DIR"
-if [ "$SKIP_BUILD" = 0 ]; then
-  section "build"
-  npm run build
-fi
-[ -e dist/404.html ] || die "dist/404.html missing — deploying would create a soft-404 (homepage at 200 on every unknown URL)"
-[ -e dist/_headers ] || die "dist/_headers missing — the Gerber viewer would lose cross-origin isolation"
-[ -f functions/api/waitlist.ts ] || die "functions/api/waitlist.ts missing"
-
-section "deploy ($TARGET, branch=$BRANCH)"
-# Run from $SITE_DIR so wrangler reads site/wrangler.toml (pages_build_output_dir
-# + nodejs_compat) AND discovers site/functions/. Deploying from the repo root
-# would upload the static files and silently omit the Function.
-LOG="$STATE_DIR/logs/deploy-$(date +%s).log"
-if [ "$DRY_RUN" = 1 ]; then
-  echo "WOULD: (cd $SITE_DIR && $WRANGLER pages deploy --project-name $PAGES_PROJECT --branch $BRANCH --commit-dirty=true)"
-  echo; echo "done: (dry run) nothing deployed"
-  exit 0
-fi
-
-$WRANGLER pages deploy \
-  --project-name "$PAGES_PROJECT" \
-  --branch "$BRANCH" \
-  --commit-dirty=true 2>&1 | tee "$LOG"
-
-URL="$(grep -Eo 'https://[a-z0-9-]+\.'"$PAGES_PROJECT"'\.pages\.dev' "$LOG" | tail -1 || true)"
-[ -n "$URL" ] || URL="$(grep -Eo 'https://[^ ]*\.pages\.dev' "$LOG" | tail -1 || true)"
-[ -n "$URL" ] || die "could not determine the deployment URL — see $LOG"
-
-printf '{"url":"%s","branch":"%s","target":"%s","ctx":"%s"}\n' \
-  "$URL" "$BRANCH" "$TARGET" "$(ctx_hash)" > "$STATE_DIR/state/last-deploy.json"
-
-section "done"
-echo "Verify it before any DNS moves:"
-echo "  deploy/site/06-verify-deploy.sh --url $URL$([ "$TARGET" = production ] && echo ' --scope prod-deploy')"
-echo "done: $URL"
diff --git a/deploy/site/06-verify-deploy.sh b/deploy/site/06-verify-deploy.sh
deleted file mode 100755
index 0d10ee0..0000000
--- a/deploy/site/06-verify-deploy.sh
+++ /dev/null
@@ -1,99 +0,0 @@
-#!/usr/bin/env bash
-# Sweep a Pages deployment on its *.pages.dev URL — the real Cloudflare runtime,
-# before any DNS is touched. One script for both the preview and the production
-# deployment; only the stamp it writes differs.
-#
-#   deploy/site/06-verify-deploy.sh --latest
-#   deploy/site/06-verify-deploy.sh --url https://abc123.pcbjam-site.pages.dev --scope prod-deploy
-set -euo pipefail
-. "$(dirname "$0")/lib/common.sh"
-. "$(dirname "$0")/lib/parity.sh"
-. "$(dirname "$0")/lib/cf-api.sh"
-
-require_cmd curl jq awk sed
-
-URL=""; SCOPE=preview
-while [ $# -gt 0 ]; do
-  case "$1" in
-    --url) URL="$2"; shift 2 ;;
-    --latest) URL=""; shift ;;
-    --scope) SCOPE="$2"; shift 2 ;;
-    *) die "unknown arg: $1" ;;
-  esac
-done
-
-if [ -z "$URL" ] && [ -s "$STATE_DIR/state/last-deploy.json" ]; then
-  URL="$(jq -r .url "$STATE_DIR/state/last-deploy.json")"
-fi
-[ -n "$URL" ] || die "no deployment URL — pass --url, or run 05-deploy.sh first"
-
-section "target"
-echo "  $URL (scope=$SCOPE)"
-
-rc=0
-assert_parity "$URL" --scope preview || rc=$?
-
-section "Pages-specific checks"
-# If the Function were not bundled (e.g. deployed from the wrong directory) the
-# whole endpoint would simply be a static 404. The parity sweep would catch it,
-# but say so explicitly — it is the most likely deploy-time mistake.
-st="$(curl -sS -o /dev/null -w '%{http_code}' -X OPTIONS "$URL/api/waitlist" \
-       -H 'Origin: https://demo.pcbjam.com' 2>/dev/null || true)"
-if [ "$st" = "404" ]; then
-  echo "FAIL   /api/waitlist is 404 — the Function was not bundled."
-  echo "       wrangler discovers functions/ relative to \$PWD; deploy from site/."
-  rc=1
-else
-  echo "PASS   /api/waitlist is routed (status $st)"
-fi
-
-# _routes.json restricts the Function to /api/*. Confirm that did not also break
-# static 404 handling for everything else.
-nf="$(curl -sS -L -o /dev/null -w '%{http_code}' "$URL/__cfm-parity-404__/" 2>/dev/null || true)"
-[ "$nf" = "404" ] && echo "PASS   static 404 handling intact under _routes.json" \
-  || { echo "FAIL   unknown path returned $nf, expected 404"; rc=1; }
-
-if [ "$SCOPE" = prod-deploy ]; then
-  section "confirming this is the PRODUCTION deployment"
-  # Via wrangler, not the REST API: `wrangler login` is enough for this, whereas
-  # the REST call would need an API token that the Pages steps otherwise don't.
-  latest="$($WRANGLER pages deployment list --project-name "$PAGES_PROJECT" \
-             --environment production --json 2>/dev/null || true)"
-  envname="$(printf '%s' "$latest" | jq -r '.[0].Environment // "?"' 2>/dev/null || echo '?')"
-  did="$(printf '%s' "$latest" | jq -r '.[0].Id // "?"' 2>/dev/null || echo '?')"
-  brn="$(printf '%s' "$latest" | jq -r '.[0].Branch // "?"' 2>/dev/null || echo '?')"
-  if [ "$envname" != "Production" ]; then
-    echo "FAIL   latest deployment environment is '$envname', not 'Production'"
-    echo "       (a branch name other than $PAGES_PROD_BRANCH makes it a preview)"
-    rc=1
-  else
-    echo "PASS   latest deployment is Production (branch=$brn id=$did)"
-  fi
-fi
-
-section "diff vs the Vercel baseline (informational)"
-BASE="$STATE_DIR/baseline/vercel"
-if [ -d "$BASE" ]; then
-  OUT="$STATE_DIR/baseline/pages-$(date +%s)"; mkdir -p "$OUT"
-  for p in / /pricing /blog /privacy /blog/porting-kicad-graphics-to-webgl-in-2026 /gerber-demo/boot.js; do
-    f="$(printf '%s' "$p" | sed 's|/|_|g')"; [ "$f" = "_" ] && f="_home"
-    eff="$(_trace "$URL$p" | cut -f1)"
-    _headers "$eff" | grep -vE '^(date|age|etag|last-modified|content-length|server|cf-ray|cf-cache-status|nel|report-to|alt-svc|set-cookie|x-vercel-id|x-vercel-cache|x-matched-path|expires|via):' | sort > "$OUT/$f.headers"
-    if [ -f "$BASE/$f.headers" ]; then
-      d="$(diff -u "$BASE/$f.headers" "$OUT/$f.headers" || true)"
-      [ -n "$d" ] && { echo "--- $p"; printf '%s\n' "$d" | sed -n '3,$p'; }
-    fi
-  done
-  echo "(header differences above are for human review, not assertions)"
-else
-  warn "no baseline at $BASE — run 00-baseline.sh while Vercel is still live"
-fi
-
-[ "$rc" -eq 0 ] || die "deployment verification FAILED — do not cut DNS."
-
-case "$SCOPE" in
-  prod-deploy) stamp_write 06-prod-deploy-parity "url=$URL" "deployment_id=${did:-unknown}" ;;
-  *)           stamp_write 06-preview-parity "url=$URL" ;;
-esac
-section "done"
-echo "done: verified $URL"
diff --git a/deploy/site/07-dns-cutover.sh b/deploy/site/07-dns-cutover.sh
deleted file mode 100755
index f76793f..0000000
--- a/deploy/site/07-dns-cutover.sh
+++ /dev/null
@@ -1,347 +0,0 @@
-#!/usr/bin/env bash
-# Move www.pcbjam.com from Vercel to the Pages project, and point the apex at a
-# 308 redirect to www. THE ONLY SCRIPT HERE THAT AFFECTS LIVE TRAFFIC.
-#
-#   deploy/site/07-dns-cutover.sh --phase probe              # dry run (default)
-#   deploy/site/07-dns-cutover.sh --phase probe --apply
-#   ...
-#   deploy/site/07-dns-cutover.sh --phase swap --apply
-#   deploy/site/07-dns-cutover.sh --rollback --apply
-#
-# Phases, in the order they should be run. Only `swap` and `apex` are live:
-#
-#   prelower  T-24h   drop the www TTL to 60 so the cut AND any rollback
-#                     propagate in ~1 min instead of ~5.
-#   probe     T-days  create a throwaway hostname, attach it as a Pages custom
-#                     domain, delete both. Settles — at zero risk to www —
-#                     whether Pages will attach over an existing CNAME, and
-#                     measures how long validation takes.
-#   rules     T-1d    create the apex->www redirect rule. INERT until the apex is
-#                     proxied, so it is safe to create early and verify later.
-#   hsts      T-1d    enable zone HSTS at Vercel's existing max-age. Additive.
-#   swap      T+0     www -> Pages. See "the window" below.
-#   apex      T+2m    apex -> proxied placeholder, which activates the rule.
-#
-# THE WINDOW. The swap is an in-place PATCH, not a delete-then-create, and that
-# distinction is the single most important safety property here. A PATCH changes
-# content and proxied status atomically, so there is NO DNS gap. Delete-then-
-# create leaves the name with no record for a second or two, and any resolver
-# that asks in that instant caches NODATA for the zone's SOA minimum (typically
-# 1800s) — an un-flushable ~30-minute partial outage. 00-baseline.sh records the
-# actual SOA minimum so you can see the exposure. The residual risk with PATCH is
-# HTTP-only and self-healing: for a second or two the edge has no route for the
-# host and serves the Pages not-found page. Universal SSL already covers
-# *.pcbjam.com, so TLS is never in question.
-#
-# Vercel stays attached throughout, so resolvers still holding the old answer keep
-# serving the identical site. This is a fade, not a switch.
-set -euo pipefail
-. "$(dirname "$0")/lib/common.sh"
-. "$(dirname "$0")/lib/cf-api.sh"
-. "$(dirname "$0")/lib/parity.sh"
-
-require_cmd curl dig jq awk
-
-PHASE=""; ROLLBACK=0; SWAP_MODE=auto
-parse_common_flags "$@"
-set -- $CFM_ARGS
-while [ $# -gt 0 ]; do
-  case "$1" in
-    --phase) PHASE="$2"; shift 2 ;;
-    --swap-mode) SWAP_MODE="$2"; shift 2 ;;
-    --rollback) ROLLBACK=1; shift ;;
-    "") shift ;;
-    *) die "unknown arg: $1" ;;
-  esac
-done
-dry_banner
-
-ZID="$(cf_zone_id)"
-PROBE_HOST="cf-attach-probe.$ZONE_NAME"
-SNAP="$STATE_DIR/state/dns-before.json"
-[ -s "$SNAP" ] || die "no DNS snapshot at $SNAP — run 01-preflight.sh first (it is the rollback source of truth)"
-
-# ---------------------------------------------------------------- rollback ----
-if [ "$ROLLBACK" = 1 ]; then
-  section "rollback: restore the Vercel CNAMEs and disable the redirect rule"
-  for n in "www.$ZONE_NAME" "$ZONE_NAME"; do
-    for t in CNAME A; do
-      id="$(cf_dns_find "$n" "$t")"
-      [ -n "$id" ] || continue
-      cf_dns_guard "$id" "$n"
-      dry "restore $n -> $VERCEL_DNS_TARGET (CNAME, unproxied, ttl 60)" -- true
-      [ "$DRY_RUN" = 0 ] && cf_api PUT "/zones/$ZID/dns_records/$id" \
-        "$(jq -n --arg n "$n" --arg c "$VERCEL_DNS_TARGET" \
-           '{type:"CNAME",name:$n,content:$c,proxied:false,ttl:60}')" >/dev/null
-      break
-    done
-  done
-  if [ -s "$STATE_DIR/state/redirect-rule.json" ]; then
-    rsid="$(jq -r .ruleset_id "$STATE_DIR/state/redirect-rule.json")"
-    rid="$(jq -r .rule_id "$STATE_DIR/state/redirect-rule.json")"
-    dry "disable redirect rule $rid" -- true
-    [ "$DRY_RUN" = 0 ] && cf_api PATCH "/zones/$ZID/rulesets/$rsid/rules/$rid" \
-      '{"enabled":false}' >/dev/null || true
-  fi
-  echo
-  echo "The Pages project, its deployments and secrets are left intact — re-cutting"
-  echo "over later is just: 07-dns-cutover.sh --phase swap --apply"
-  echo "done: rolled back (www ttl=60)"
-  exit 0
-fi
-
-[ -n "$PHASE" ] || die "pass --phase prelower|probe|rules|hsts|swap|apex (or --rollback)"
-
-# ---------------------------------------------------------------- prelower ----
-phase_prelower() {
-  section "prelower: www TTL -> 60"
-  id="$(cf_dns_find "www.$ZONE_NAME" CNAME)"
-  [ -n "$id" ] || die "no www CNAME found"
-  cf_dns_guard "$id" "www.$ZONE_NAME"
-  cur="$(cf_api GET "/zones/$ZID/dns_records/$id")"
-  content="$(printf '%s' "$cur" | jq -r .result.content)"
-  ttl="$(printf '%s' "$cur" | jq -r .result.ttl)"
-  proxied="$(printf '%s' "$cur" | jq -r .result.proxied)"
-  echo "  current: $content ttl=$ttl proxied=$proxied"
-  [ "$proxied" = "false" ] || die "record is proxied; TTL is not settable while proxied (and it should still be Vercel's at this point)"
-  dry "PATCH www TTL 60" -- true
-  [ "$DRY_RUN" = 0 ] && cf_api PATCH "/zones/$ZID/dns_records/$id" '{"ttl":60}' >/dev/null
-  echo "done: www ttl 60 (was $ttl)"
-}
-
-# ------------------------------------------------------------------- probe ----
-phase_probe() {
-  section "probe: can Pages attach a custom domain over an existing CNAME?"
-  echo "Uses the throwaway host $PROBE_HOST. www is never touched."
-  if [ "$DRY_RUN" = 1 ]; then
-    echo "WOULD: POST /zones/$ZID/dns_records  (CNAME $PROBE_HOST -> $PAGES_PROJECT.pages.dev, proxied)"
-    echo "WOULD: POST /accounts/<acct>/pages/projects/$PAGES_PROJECT/domains  {\"name\":\"$PROBE_HOST\"}"
-    echo "WOULD: poll until status=active, curl it, then DELETE both"
-    exit 0
-  fi
-  rid="$(cf_api POST "/zones/$ZID/dns_records" \
-    "$(jq -n --arg n "$PROBE_HOST" --arg c "$PAGES_PROJECT.pages.dev" \
-      '{type:"CNAME",name:$n,content:$c,proxied:true,ttl:1,comment:"cf-migrate probe - safe to delete"}')" \
-    | jq -r .result.id)"
-  echo "  created probe record $rid"
-  attach_rc=0
-  cf_api POST "/accounts/$(cf_account)/pages/projects/$PAGES_PROJECT/domains" \
-    "$(jq -n --arg n "$PROBE_HOST" '{name:$n}')" >/dev/null 2>&1 || attach_rc=$?
-  t0=$(date +%s); status=unknown
-  if [ "$attach_rc" = 0 ]; then
-    for _ in $(seq 1 60); do
-      status="$(cf_pages_domains | jq -r --arg n "$PROBE_HOST" '.result[]|select(.name==$n)|.status' | head -1)"
-      [ "$status" = active ] && break
-      sleep 5
-    done
-  fi
-  secs=$(( $(date +%s) - t0 ))
-  code="$(curl -sS -o /dev/null -w '%{http_code}' "https://$PROBE_HOST/" 2>/dev/null || echo 000)"
-  echo "  attach_rc=$attach_rc status=$status seconds_to_active=$secs http=$code"
-
-  if [ "$attach_rc" = 0 ] && [ "$status" = active ]; then
-    printf 'ok seconds_to_active=%s\n' "$secs" > "$STATE_DIR/state/attach-over-existing-record.ok"
-    rm -f "$STATE_DIR/state/attach-over-existing-record.unsupported"
-    echo "  => in-place PATCH swap is supported (swap-mode auto will use it)"
-  else
-    printf 'unsupported attach_rc=%s status=%s\n' "$attach_rc" "$status" \
-      > "$STATE_DIR/state/attach-over-existing-record.unsupported"
-    rm -f "$STATE_DIR/state/attach-over-existing-record.ok"
-    warn "attach over an existing record did NOT work; swap-mode auto will fall back to delete-create"
-    warn "read the NODATA warning in this script's header before running the swap"
-  fi
-
-  cf_api DELETE "/accounts/$(cf_account)/pages/projects/$PAGES_PROJECT/domains/$PROBE_HOST" >/dev/null 2>&1 || true
-  cf_dns_guard "$rid" "$PROBE_HOST"
-  cf_api DELETE "/zones/$ZID/dns_records/$rid" >/dev/null
-  echo "done: probe cleaned up"
-}
-
-# ------------------------------------------------------------------- rules ----
-phase_rules() {
-  section "rules: apex -> www, 308, path + query preserved"
-  ep="$($CURL_BIN -sS "$CF_API/zones/$ZID/rulesets/phases/http_request_dynamic_redirect/entrypoint" \
-        -H "Authorization: Bearer $(cf_token)")"
-  have="$(printf '%s' "$ep" | jq -r '.success')"
-  rule="$(jq -n --arg h "$ZONE_NAME" --arg w "https://www.$ZONE_NAME" '{
-    ref: "cfm_apex_to_www",
-    description: "apex \($h) -> www (308, preserve query) [cf-migrate]",
-    expression: "(http.host eq \"\($h)\")",
-    action: "redirect",
-    action_parameters: { from_value: {
-      target_url: { expression: "concat(\"\($w)\", http.request.uri.path)" },
-      status_code: 308,
-      preserve_query_string: true } },
-    enabled: true }')"
-
-  # Exact host match only. A `contains` match would also catch app./demo./editor.
-  printf '%s' "$rule" | jq -e '.expression | contains("eq")' >/dev/null \
-    || die "refusing a redirect expression that is not an exact host match"
-
-  if [ "$have" = "true" ]; then
-    rsid="$(printf '%s' "$ep" | jq -r '.result.id')"
-    n="$(printf '%s' "$ep" | jq '.result.rules | length // 0')"
-    echo "  existing ruleset $rsid with $n rule(s) — APPENDING"
-    # POST /rules appends. A PUT on the entrypoint would replace the whole rule
-    # list and silently delete unrelated redirects.
-    [ "$n" -lt 10 ] || die "$n dynamic redirects already exist (free plan allows 10)"
-    if [ "$DRY_RUN" = 1 ]; then
-      echo "WOULD: POST /zones/$ZID/rulesets/$rsid/rules"; printf '%s\n' "$rule" | jq .
-      return 0
-    fi
-    out="$(cf_api POST "/zones/$ZID/rulesets/$rsid/rules" "$rule")"
-  else
-    echo "  no dynamic-redirect ruleset yet — creating the phase entrypoint"
-    body="$(jq -n --argjson r "$rule" '{name:"Redirect rules ruleset",kind:"zone",phase:"http_request_dynamic_redirect",rules:[$r]}')"
-    if [ "$DRY_RUN" = 1 ]; then
-      echo "WOULD: POST /zones/$ZID/rulesets"; printf '%s\n' "$body" | jq .
-      return 0
-    fi
-    out="$(cf_api POST "/zones/$ZID/rulesets" "$body")"
-    rsid="$(printf '%s' "$out" | jq -r '.result.id')"
-  fi
-
-  rid="$(printf '%s' "$out" | jq -r '.result.rules[]? | select(.ref=="cfm_apex_to_www") | .id' | head -1)"
-  jq -n --arg rs "$rsid" --arg r "$rid" '{ruleset_id:$rs,rule_id:$r}' \
-    > "$STATE_DIR/state/redirect-rule.json"
-  echo "  recorded ruleset=$rsid rule=$rid"
-  echo
-  echo "NOT verified yet, deliberately: the rule cannot fire until the apex record"
-  echo "is proxied. --phase apex asserts it."
-  echo "done: redirect rule created (inert)"
-}
-
-# -------------------------------------------------------------------- hsts ----
-phase_hsts() {
-  section "hsts: max-age 63072000 (matching what Vercel sends today)"
-  cur="$(cf_api GET "/zones/$ZID/settings/security_header")"
-  printf '%s' "$cur" | jq -c '.result.value' 2>/dev/null || true
-  body='{"value":{"strict_transport_security":{"enabled":true,"max_age":63072000,"include_subdomains":false,"preload":false,"nosniff":true}}}'
-  # include_subdomains / preload are effectively irreversible (browsers cache the
-  # directive for the max-age, and preload lists are slow to leave). Refused.
-  echo "  include_subdomains=false, preload=false — both deliberately off."
-  echo "  Note this is ZONE-WIDE: cdn/app/demo/editor responses gain the header too."
-  echo "  All are already HTTPS-only, so it is a no-op for them."
-  dry "PATCH zone HSTS" -- true
-  [ "$DRY_RUN" = 0 ] && cf_api PATCH "/zones/$ZID/settings/security_header" "$body" >/dev/null
-  echo "done: HSTS enabled"
-}
-
-# -------------------------------------------------------------------- swap ----
-phase_swap() {
-  section "swap: www.$ZONE_NAME -> Pages"
-  stamp_require 06-prod-deploy-parity
-
-  # Refuse to cut DNS onto a deployment other than the one that was verified.
-  want="$(jq -r '.deployment_id // "unknown"' "$STATE_DIR/stamps/06-prod-deploy-parity.$(ctx_hash)" 2>/dev/null \
-          || grep -h '^deployment_id=' "$STATE_DIR/stamps/06-prod-deploy-parity.$(ctx_hash)" 2>/dev/null | cut -d= -f2)"
-  have="$(cf_api GET "/accounts/$(cf_account)/pages/projects/$PAGES_PROJECT/deployments?per_page=1" \
-          | jq -r '.result[0].id // "none"')"
-  if [ -n "$want" ] && [ "$want" != unknown ] && [ "$want" != "$have" ]; then
-    die "verified deployment ($want) is not the current production deployment ($have).
-     Re-run 06-verify-deploy.sh --scope prod-deploy before cutting DNS."
-  fi
-  echo "  verified deployment == current production deployment ($have)"
-
-  id="$(cf_dns_find "www.$ZONE_NAME" CNAME)"
-  [ -n "$id" ] || die "no www CNAME found"
-  cf_dns_guard "$id" "www.$ZONE_NAME"
-  cur="$(cf_api GET "/zones/$ZID/dns_records/$id" | jq -r .result.content)"
-  snap="$(jq -r --arg n "www.$ZONE_NAME" '.result[]|select(.name==$n and .type=="CNAME")|.content' "$SNAP" | head -1)"
-  [ "$cur" = "$snap" ] || die "www currently points at '$cur' but the snapshot says '$snap' — someone else changed it. Stop and re-check."
-
-  mode="$SWAP_MODE"
-  if [ "$mode" = auto ]; then
-    if [ -f "$STATE_DIR/state/attach-over-existing-record.ok" ]; then mode=update
-    else mode=delete-create
-      warn "no successful --phase probe result on record; falling back to delete-create"
-      warn "that risks NODATA negative-caching for the SOA minimum. Run --phase probe first."
-    fi
-  fi
-  echo "  swap mode: $mode"
-  confirm_cutover
-
-  if [ "$mode" = update ]; then
-    dry "PATCH www -> $PAGES_PROJECT.pages.dev (proxied, atomic — no DNS gap)" -- true
-    [ "$DRY_RUN" = 0 ] && cf_api PATCH "/zones/$ZID/dns_records/$id" \
-      "$(jq -n --arg n "www.$ZONE_NAME" --arg c "$PAGES_PROJECT.pages.dev" \
-         '{type:"CNAME",name:$n,content:$c,proxied:true,ttl:1,comment:"Pages custom domain [cf-migrate]"}')" >/dev/null
-  else
-    dry "DELETE www record, then immediately attach (leaves a brief NODATA window)" -- true
-    [ "$DRY_RUN" = 0 ] && cf_api DELETE "/zones/$ZID/dns_records/$id" >/dev/null
-  fi
-
-  dry "POST pages custom domain www.$ZONE_NAME" -- true
-  if [ "$DRY_RUN" = 0 ]; then
-    cf_api POST "/accounts/$(cf_account)/pages/projects/$PAGES_PROJECT/domains" \
-      "$(jq -n --arg n "www.$ZONE_NAME" '{name:$n}')" >/dev/null 2>&1 \
-      || warn "attach returned an error — it may already be attached; checking status"
-    for _ in $(seq 1 60); do
-      s="$(cf_pages_domains | jq -r --arg n "www.$ZONE_NAME" '.result[]|select(.name==$n)|.status' | head -1)"
-      echo "  domain status: ${s:-<absent>}"
-      [ "$s" = active ] && break
-      sleep 5
-    done
-    # Host-header probe: proves the edge routes the hostname to Pages regardless
-    # of what any resolver currently caches.
-    hp="$(curl -sS -o /dev/null -w '%{http_code}' -H "Host: www.$ZONE_NAME" \
-           "https://$PAGES_PROJECT.pages.dev/" 2>/dev/null || echo 000)"
-    echo "  host-header probe via pages.dev: $hp"
-  fi
-
-  echo
-  echo "done: www swapped. Next: --phase apex, then 08-verify-prod.sh"
-}
-
-# -------------------------------------------------------------------- apex ----
-phase_apex() {
-  section "apex: $ZONE_NAME -> proxied placeholder (activates the redirect rule)"
-  # Order matters: a proxied apex pointing at TEST-NET with no rule serves 522s.
-  [ -s "$STATE_DIR/state/redirect-rule.json" ] \
-    || die "no redirect rule recorded — run --phase rules first, or the apex will 522"
-  rsid="$(jq -r .ruleset_id "$STATE_DIR/state/redirect-rule.json")"
-  rid="$(jq -r .rule_id "$STATE_DIR/state/redirect-rule.json")"
-  en="$(cf_api GET "/zones/$ZID/rulesets/$rsid" | jq -r --arg r "$rid" '.result.rules[]|select(.id==$r)|.enabled')"
-  [ "$en" = "true" ] || die "redirect rule $rid is not enabled — refusing to proxy the apex"
-  echo "  redirect rule $rid is enabled"
-
-  id="$(cf_dns_find "$ZONE_NAME" CNAME)"
-  [ -n "$id" ] || id="$(cf_dns_find "$ZONE_NAME" A)"
-  [ -n "$id" ] || die "no apex record found"
-  cf_dns_guard "$id" "$ZONE_NAME"
-  before="$(cf_api GET "/zones/$ZID/dns_records/$id" | jq -c '{type:.result.type,content:.result.content,proxied:.result.proxied}')"
-  echo "  before: $before"
-
-  # A single PUT changes CNAME -> A atomically; no delete/create gap.
-  dry "PUT apex -> A 192.0.2.0 proxied (placeholder; requests never reach it)" -- true
-  if [ "$DRY_RUN" = 1 ]; then echo; echo "done: (dry run)"; return 0; fi
-  cf_api PUT "/zones/$ZID/dns_records/$id" \
-    "$(jq -n --arg n "$ZONE_NAME" \
-       '{type:"A",name:$n,content:"192.0.2.0",proxied:true,ttl:1,comment:"placeholder for apex->www redirect rule [cf-migrate]"}')" >/dev/null
-
-  section "verifying the 308 (auto-rollback armed)"
-  ok=1
-  for _ in $(seq 1 12); do
-    if assert_apex_redirect "$APEX_BASE" >/dev/null 2>&1; then ok=0; break; fi
-    sleep 5
-  done
-  if [ "$ok" != 0 ]; then
-    warn "apex redirect did not come up — rolling the apex record back"
-    cf_api PUT "/zones/$ZID/dns_records/$id" \
-      "$(jq -n --arg n "$ZONE_NAME" --arg c "$VERCEL_DNS_TARGET" \
-         '{type:"CNAME",name:$n,content:$c,proxied:false,ttl:60}')" >/dev/null
-    die "apex rolled back to Vercel. Investigate the redirect rule, then retry."
-  fi
-  assert_apex_redirect "$APEX_BASE"
-  echo "done: apex 308s to www"
-}
-
-case "$PHASE" in
-  prelower) phase_prelower ;;
-  probe)    phase_probe ;;
-  rules)    phase_rules ;;
-  hsts)     phase_hsts ;;
-  swap)     phase_swap ;;
-  apex)     phase_apex ;;
-  *) die "unknown phase '$PHASE' (prelower|probe|rules|hsts|swap|apex)" ;;
-esac
diff --git a/deploy/site/08-verify-prod.sh b/deploy/site/08-verify-prod.sh
deleted file mode 100755
index dfa2b03..0000000
--- a/deploy/site/08-verify-prod.sh
+++ /dev/null
@@ -1,99 +0,0 @@
-#!/usr/bin/env bash
-# The go/no-go after cutover. Read-only.
-#
-#   deploy/site/08-verify-prod.sh
-#
-# Also asserts the two probes that FAILED in 00-baseline.sh now pass, so the
-# migration demonstrably fixed the COOP/COEP bug rather than carrying it over.
-set -euo pipefail
-. "$(dirname "$0")/lib/common.sh"
-. "$(dirname "$0")/lib/parity.sh"
-. "$(dirname "$0")/lib/cf-api.sh"
-
-require_cmd curl dig jq awk sed
-
-rc=0
-
-section "DNS now resolves to Cloudflare"
-# A PROXIED record answers with Cloudflare anycast A records and exposes no CNAME,
-# so an empty CNAME lookup here is the expected result once the custom domain is
-# attached — not a problem. What would be wrong is failing to resolve at all, or
-# still CNAMEing to Vercel. The authoritative "are we on Cloudflare" check is the
-# cf-ray / x-vercel-id pair below.
-for h in "$ZONE_NAME" "www.$ZONE_NAME"; do
-  a="$(dig +short A "$h" | tr '\n' ' ')"
-  c="$(dig +short CNAME "$h" | tr '\n' ' ')"
-  printf '  %-20s A=%s%s\n' "$h" "${a:-<none>}" "${c:+  CNAME=$c}"
-  if [ -z "$a" ]; then echo "  FAIL   $h does not resolve"; rc=1; fi
-  case "$c" in
-    *vercel-dns*) echo "  FAIL   $h still CNAMEs to Vercel — not propagated, or the attach did not happen"; rc=1 ;;
-  esac
-done
-
-section "we are actually being served by Cloudflare, not a stale Vercel cache"
-h="$(_headers "$PROD_BASE/")"
-if [ -n "$(_hdr "$h" x-vercel-id)" ]; then
-  echo "  FAIL   x-vercel-id still present — you are seeing cached DNS."
-  echo "         Wait for the TTL and re-run; this is NOT a pass."
-  rc=1
-else
-  echo "  PASS   no x-vercel-id"
-fi
-[ -n "$(_hdr "$h" cf-ray)" ] && echo "  PASS   cf-ray present" || echo "  WARN   no cf-ray header"
-
-assert_parity "$PROD_BASE" --scope prod || rc=$?
-assert_apex "$APEX_BASE" || rc=$?
-
-section "the two baseline failures must now pass"
-# This is the whole point of having captured a baseline: prove the fix.
-for path in /blog/porting-kicad-graphics-to-webgl-in-2026 /blog/porting-kicad-graphics-to-webgl-in-2026/; do
-  eff="$(_trace "$PROD_BASE$path" | cut -f1)"
-  hh="$(_headers "$eff")"
-  coop="$(_hdr "$hh" cross-origin-opener-policy)"; coep="$(_hdr "$hh" cross-origin-embedder-policy)"
-  if [ "$coop" = same-origin ] && [ "$coep" = require-corp ]; then
-    echo "  PASS   $path -> isolated ($eff)"
-  else
-    echo "  FAIL   $path -> coop='${coop:-absent}' coep='${coep:-absent}' ($eff)"
-    echo "         this is the bug the migration was supposed to fix"
-    rc=1
-  fi
-done
-
-section "the demo integration (load-bearing)"
-# demo.pcbjam.com has no backend; it cross-posts here. A CORS preflight cannot
-# follow a redirect, so this must be 204 on www with zero hops.
-hops="$(curl -sS -o /dev/null -w '%{num_redirects}' -X OPTIONS "$PROD_BASE/api/waitlist" \
-         -H 'Origin: https://demo.pcbjam.com' 2>/dev/null || echo 9)"
-st="$(curl -sS -o /dev/null -w '%{http_code}' -X OPTIONS "$PROD_BASE/api/waitlist" \
-       -H 'Origin: https://demo.pcbjam.com' -H 'Access-Control-Request-Method: POST' 2>/dev/null || true)"
-if [ "$st" = "204" ] && [ "$hops" = "0" ]; then
-  echo "  PASS   preflight 204 with 0 redirects"
-else
-  echo "  FAIL   status=$st hops=$hops (both 204 and 0 hops are required)"; rc=1
-fi
-
-section "custom domains attached to $PAGES_PROJECT"
-# Via wrangler (works with `wrangler login`); the REST endpoint would need an API
-# token that nothing else in the serve-mode path requires.
-doms="$($WRANGLER pages project list --json 2>/dev/null \
-         | jq -r --arg n "$PAGES_PROJECT" '.[] | select(."Project Name"==$n) | ."Project Domains"')"
-echo "  $doms"
-want="www.$ZONE_NAME"
-[ "${APEX_MODE:-serve}" = serve ] && want="$want $ZONE_NAME"
-for d in $want; do
-  case ",$(printf '%s' "$doms" | tr -d ' ')," in
-    *",$d,"*) echo "  PASS   $d attached" ;;
-    *) echo "  FAIL   $d NOT attached to $PAGES_PROJECT"; rc=1 ;;
-  esac
-done
-
-section "summary"
-if [ "$rc" -ne 0 ]; then
-  echo "PROD VERIFICATION FAILED."
-  echo "Rollback is one command:  deploy/site/99-rollback.sh --apply"
-  exit 1
-fi
-stamp_write 08-prod-parity
-echo "All checks passed. Vercel still holds the domains as a fallback;"
-echo "detach them after a soak:  deploy/site/09-detach-vercel.sh --apply"
-echo "done: $PROD_BASE"
diff --git a/deploy/site/09-detach-vercel.sh b/deploy/site/09-detach-vercel.sh
deleted file mode 100755
index 7c1f7c3..0000000
--- a/deploy/site/09-detach-vercel.sh
+++ /dev/null
@@ -1,96 +0,0 @@
-#!/usr/bin/env bash
-# Detach pcbjam.com + www.pcbjam.com from the Vercel project, AFTER a soak.
-# Keeps the Vercel project, its env vars, and the _vercel TXT records — so
-# re-attaching is instant and needs no re-verification.
-#
-#   deploy/site/09-detach-vercel.sh                    # dry run
-#   deploy/site/09-detach-vercel.sh --apply
-#   deploy/site/09-detach-vercel.sh --rollback --apply # re-attach (incident use)
-#
-# Needs VERCEL_TOKEN (a team token with project write), or the vercel CLI logged in.
-set -euo pipefail
-. "$(dirname "$0")/lib/common.sh"
-
-require_cmd curl jq
-SOAK_H="${SOAK_HOURS:-24}"; ROLLBACK=0
-parse_common_flags "$@"
-set -- $CFM_ARGS
-while [ $# -gt 0 ]; do
-  case "$1" in
-    --soak-hours) SOAK_H="$2"; shift 2 ;;
-    --rollback) ROLLBACK=1; shift ;;
-    --i-understand) CFM_I_UNDERSTAND=1; shift ;;
-    "") shift ;;
-    *) die "unknown arg: $1" ;;
-  esac
-done
-dry_banner
-
-VAPI="https://api.vercel.com"
-vercel_api() { # vercel_api METHOD PATH
-  [ -n "${VERCEL_TOKEN:-}" ] || die "VERCEL_TOKEN is not set (a team token with project write)"
-  if [ "$1" != GET ] && [ "$DRY_RUN" = 1 ]; then
-    echo "WOULD: $1 $VAPI$2" >&2; echo '{"dry_run":true}'; return 0
-  fi
-  curl -sS -X "$1" "$VAPI$2" -H "Authorization: Bearer $VERCEL_TOKEN" -H 'Content-Type: application/json'
-}
-
-TEAM_ID="$(vercel_api GET "/v2/teams?slug=$VERCEL_TEAM" | jq -r '.teams[0].id // empty' 2>/dev/null || true)"
-[ -n "$TEAM_ID" ] || warn "could not resolve team id for '$VERCEL_TEAM'; API calls may fail"
-Q="teamId=$TEAM_ID"
-
-if [ "$ROLLBACK" = 1 ]; then
-  section "re-attaching the domains to Vercel"
-  # Instant: the _vercel TXT verification records were never deleted.
-  for d in "$ZONE_NAME" "www.$ZONE_NAME"; do
-    dry "attach $d to Vercel project $VERCEL_PROJECT" -- true
-    [ "$DRY_RUN" = 0 ] && vercel_api POST "/v10/projects/$VERCEL_PROJECT/domains?$Q" >/dev/null 2>&1 || true
-  done
-  echo "done: domains re-attached (DNS still needs to point at Vercel — see 99-rollback.sh)"
-  exit 0
-fi
-
-section "soak gate"
-STAMP="$STATE_DIR/stamps/08-prod-parity.$(ctx_hash)"
-[ -f "$STAMP" ] || die "no 08-prod-parity stamp — run 08-verify-prod.sh first"
-ts="$(awk -F= '/^ts=/{print $2}' "$STAMP")"
-age_h=$(( ( $(date +%s) - $(stat -f %m "$STAMP") ) / 3600 ))
-echo "  verified at $ts (${age_h}h ago); soak requirement ${SOAK_H}h"
-if [ "$age_h" -lt "$SOAK_H" ]; then
-  [ "${CFM_I_UNDERSTAND:-0}" = 1 ] \
-    || die "only ${age_h}h since verification (need ${SOAK_H}h).
-     Vercel is your fallback — detaching early removes it. Pass --i-understand to override."
-  warn "soak window overridden"
-fi
-
-section "re-checking production before removing the fallback"
-# Never detach while broken.
-for u in "$PROD_BASE/" "$PROD_BASE/blog" "$PROD_BASE/pricing"; do
-  c="$(curl -sS -L -o /dev/null -w '%{http_code}' "$u" 2>/dev/null || echo 000)"
-  [ "$c" = "200" ] || die "$u returned $c — refusing to detach Vercel while production is unhealthy"
-  echo "  ok $u"
-done
-c="$(curl -sS -o /dev/null -w '%{http_code}' -X OPTIONS "$PROD_BASE/api/waitlist" \
-      -H 'Origin: https://demo.pcbjam.com' -H 'Access-Control-Request-Method: POST' 2>/dev/null || echo 000)"
-[ "$c" = "204" ] || die "waitlist preflight returned $c — refusing to detach"
-echo "  ok waitlist preflight"
-
-section "detaching"
-for d in "www.$ZONE_NAME" "$ZONE_NAME"; do
-  dry "DELETE /v9/projects/$VERCEL_PROJECT/domains/$d" -- true
-  [ "$DRY_RUN" = 0 ] && vercel_api DELETE "/v9/projects/$VERCEL_PROJECT/domains/$d?$Q" >/dev/null
-done
-
-if [ "$DRY_RUN" = 0 ]; then
-  section "confirming"
-  left="$(vercel_api GET "/v9/projects/$VERCEL_PROJECT/domains?$Q" | jq -r '.domains[]?.name' | tr '\n' ' ')"
-  echo "  domains still on the project: ${left:-<none>}"
-  case " $left " in
-    *" $ZONE_NAME "*|*" www.$ZONE_NAME "*) die "a target domain is still attached" ;;
-  esac
-fi
-
-section "done"
-echo "Deliberately NOT done: the Vercel project, its env vars, and the two _vercel"
-echo "TXT DNS records all remain. That is what keeps rollback cheap."
-echo "done: vercel domains detached (project $VERCEL_PROJECT retained)"
diff --git a/deploy/site/99-rollback.sh b/deploy/site/99-rollback.sh
deleted file mode 100755
index d19a024..0000000
--- a/deploy/site/99-rollback.sh
+++ /dev/null
@@ -1,72 +0,0 @@
-#!/usr/bin/env bash
-# One command, incident-grade: put www.pcbjam.com and the apex back on Vercel.
-#
-#   deploy/site/99-rollback.sh                # dry run — read it first
-#   deploy/site/99-rollback.sh --apply --yes
-#
-# Order matters: re-attach at Vercel FIRST so the target exists before DNS points
-# at it, then restore DNS, then disable the redirect rule.
-#
-# Leaves the Pages project, its deployments and its secrets alone — re-cutting
-# over later is just `07-dns-cutover.sh --phase swap --apply`.
-set -euo pipefail
-. "$(dirname "$0")/lib/common.sh"
-. "$(dirname "$0")/lib/cf-api.sh"
-
-require_cmd curl dig jq
-SKIP_VERCEL=0
-parse_common_flags "$@"
-set -- $CFM_ARGS
-while [ $# -gt 0 ]; do
-  case "$1" in
-    --skip-vercel) SKIP_VERCEL=1; shift ;;
-    "") shift ;;
-    *) die "unknown arg: $1" ;;
-  esac
-done
-dry_banner
-
-HERE="$(dirname "$0")"
-FLAGS=""; [ "$DRY_RUN" = 0 ] && FLAGS="--apply"
-
-section "1/3 re-attach the domains at Vercel"
-if [ "$SKIP_VERCEL" = 1 ]; then
-  echo "  skipped (--skip-vercel)"
-elif [ -z "${VERCEL_TOKEN:-}" ]; then
-  warn "VERCEL_TOKEN unset — skipping the re-attach step."
-  warn "Do it by hand NOW (Vercel -> project $VERCEL_PROJECT -> Domains -> add"
-  warn "$ZONE_NAME and www.$ZONE_NAME) before the DNS change below propagates."
-else
-  # shellcheck disable=SC2086
-  "$HERE/09-detach-vercel.sh" --rollback $FLAGS || warn "re-attach reported an error; check the Vercel dashboard"
-fi
-
-section "2/3 restore DNS + disable the redirect rule"
-# shellcheck disable=SC2086
-"$HERE/07-dns-cutover.sh" --rollback $FLAGS --yes
-
-if [ "$DRY_RUN" = 1 ]; then
-  echo; echo "done: (dry run) nothing changed. Re-run with --apply --yes to roll back."
-  exit 0
-fi
-
-section "3/3 waiting for Vercel to serve again (www ttl is 60)"
-ok=1
-for i in $(seq 1 60); do
-  h="$(curl -sS -o /dev/null -D - "$PROD_BASE/" 2>/dev/null | tr -d '\r' || true)"
-  st="$(printf '%s' "$h" | awk '/^HTTP/{c=$2} END{print c}')"
-  vid="$(printf '%s' "$h" | awk 'tolower($1)=="x-vercel-id:"{print $2}' | tail -1)"
-  echo "  [${i}] status=$st x-vercel-id=${vid:-none} cname=$(dig +short CNAME "www.$ZONE_NAME" | head -1)"
-  if [ "$st" = "200" ] && [ -n "$vid" ]; then ok=0; break; fi
-  sleep 5
-done
-
-section "done"
-if [ "$ok" = 0 ]; then
-  echo "www.$ZONE_NAME is served by Vercel again."
-else
-  echo "www.$ZONE_NAME is NOT confirmably back on Vercel yet."
-  echo "Check: the domains are attached in Vercel, and dig www.$ZONE_NAME."
-fi
-echo "The Pages project is untouched; re-cutover is 07-dns-cutover.sh --phase swap --apply"
-echo "done: rollback complete (re-baseline with 00-baseline.sh --force if you want a fresh reference)"
diff --git a/deploy/site/README.md b/deploy/site/README.md
index 46377ba..de25fc4 100644
--- a/deploy/site/README.md
+++ b/deploy/site/README.md
@@ -1,8 +1,10 @@
-# www.pcbjam.com deploy runbook
+# www.pcbjam.com
 
 The Astro marketing site + blog (`../../site`) on **Cloudflare Pages** (project
-`pcbjam-site`), with one **Pages Function** for `/api/waitlist`. The apex
-`pcbjam.com` 308s to `www` via a zone Redirect Rule.
+`pcbjam-site`), with one **Pages Function** for `/api/waitlist`. Both
+`www.pcbjam.com` and the apex `pcbjam.com` are custom domains on that project and
+serve identically; the pages emit `canonical=www`, which is what consolidates them
+for search.
 
 ```
 push to main (site/**)  ──▶  .github/workflows/deploy-site.yml
@@ -16,134 +18,82 @@ push to main (site/**)  ──▶  .github/workflows/deploy-site.yml
 Not tag-gated: content must not wait for a release. The WASM editor ships from
 `release.yml`; the two are independent.
 
-## Layout
+## Files that carry load
 
 ```
 site/functions/api/waitlist.ts   the only server-side code (Pages Function)
-site/public/_headers             prod COOP/COEP, scoped to 2 routes
+site/public/_headers             prod response headers, scoped to 3 patterns
 site/public/_routes.json         only /api/* invokes the Function
 site/wrangler.toml               nodejs_compat + pages_build_output_dir
-site/src/pages/404.astro         required — see "soft-404" below
+site/src/pages/404.astro         required — see below
 ```
 
-Two things you can get wrong here, both of which fail quietly:
+Four things here fail **silently** if changed carelessly. Each is asserted by
+`verify.sh`, and each is asserted because it was a real defect at some point:
 
-- **Never widen `_headers` to `/*`.** `deploy/demo/_headers` does exactly that,
-  which is right for the demo and wrong here: a `require-corp` document cannot
-  load the no-COEP YouTube hero iframe, so the landing page must stay
-  un-isolated. The sweep asserts `/` is *not* isolated for this reason.
-- **Never delete `404.astro`.** Without a `404.html` in the output, Pages answers
-  every unknown URL with the **homepage at HTTP 200** — a soft-404 that invites
-  search engines to index arbitrary URLs as the homepage.
+- **Never widen `_headers` to `/*`.** `../demo/_headers` does exactly that, which
+  is right for the demo and wrong here: a `require-corp` document cannot load the
+  no-COEP YouTube hero iframe, so the landing page must stay un-isolated.
+- **Keep both URL forms of the Gerber blog post in `_headers`.** Pages serves the
+  trailing-slash form and 308s the bare form to it, and the trailing-slash form is
+  the page's own canonical. Scoping the headers to one form only means search
+  arrivals get a page without `SharedArrayBuffer` and the embedded viewer quietly
+  degrades. That shipped in production for months.
+- **Never delete `404.astro`.** With no `404.html` in the output, Pages answers
+  every unknown URL with the **homepage at HTTP 200** — a soft 404 that invites
+  indexing junk URLs as the homepage.
+- **Keep the cross-site form-POST guard** in `waitlist.ts`. Vercel's edge refused
+  those for free; Cloudflare does not, and a cross-site `<form>` submit needs no
+  CORS permission to be *sent*, so the allowlist cannot stop it.
 
-## One-time setup (Cloudflare — needs your account)
+## Verifying
 
-1. `pcbjam.com` zone on Cloudflare; note the **account id**.
-2. API token with: Zone→Zone:Read, Zone→DNS:Edit, Zone→Zone Settings:Edit,
-   Zone→Dynamic Redirect:Edit, Account→Cloudflare Pages:Edit.
-   Export `CLOUDFLARE_API_TOKEN` + `CLOUDFLARE_ACCOUNT_ID`.
-3. Pages project `pcbjam-site`, production branch `production` —
-   `03-ensure-project.sh --apply`.
-4. Secrets — `04-set-secrets.sh --apply`. `WAITLIST_ALLOWED_ORIGINS` stays
-   **unset** so the allowlist lives in code.
-5. Custom domain `www.pcbjam.com` + the apex Redirect Rule —
-   `07-dns-cutover.sh`. There is no `wrangler pages domain` subcommand, so this
-   goes through the API (or the dashboard).
-6. The repo's GitHub secrets `CLOUDFLARE_API_TOKEN` + `CLOUDFLARE_ACCOUNT_ID`
-   already exist for the demo/editor deploys — nothing to add.
+```sh
+deploy/site/verify.sh                    # production
+EXPECT_HSTS=1 deploy/site/verify.sh      # once HSTS max-age is set, assert it
 
-## Migration / cutover (one time, from Vercel)
+# a specific deployment, before promoting it
+PROD_BASE=https://abc123.pcbjam-site.pages.dev \
+  deploy/site/verify.sh --skip-dns --skip-domains
+```
 
-Two supported apex topologies, selected by `APEX_MODE` (see `lib/common.sh`):
+`lib/parity.sh` holds the assertion set: pages resolve to themselves (which is how
+a soft-404 gets caught), cross-origin isolation on the right paths *and its
+absence on the landing page*, immutable asset caching, and the waitlist endpoint's
+whole contract — preflight 204 with **zero** redirects for the demo origin, CORS
+denied for others, 405 on GET, 400 on a bad address, 303 for the no-JS form, 403
+for a cross-site form POST.
 
-- **`serve` (default, and what we chose).** The apex is a *second* Pages custom
-  domain and answers 200 directly. No redirect rule, no placeholder record, no
-  zone-level scopes — the same two clicks as `app.`/`demo.`/`editor.`. The pages
-  still emit `canonical=www`, which is what consolidates the two hostnames for
-  search.
-- **`redirect`.** The apex 308s to www via a zone Redirect Rule plus a proxied
-  placeholder record. This is what Vercel did. It needs Zone→DNS:Edit and
-  Zone→Dynamic Redirect:Edit, and the rule is the single riskiest artefact in the
-  whole migration: Redirect Rules are **zone-scoped**, so a `contains` match
-  instead of `eq` catches every subdomain and 308s `app.`, `editor.`, `demo.` and
-  `api.` to www. Dynamic redirects run *before* Workers/Pages routing, so that
-  breaks the product, not just a marketing page. `07 --phase rules` refuses any
-  expression that is not an exact `eq` match.
+Header assertions are made on the **final** response after following redirects,
+via two separate requests (`_trace`, then `_headers`). That split is deliberate:
+the isolation bug above was invisible precisely because the headers were present
+on a redirect hop and absent on the document.
 
-Every mutating script is **dry-run by default**; add `--apply`. Read the dry-run
-output before applying — that is the point of the split.
+The POSTs are safe against production. The full-path probe uses the honeypot
+branch, which returns before validation, before the rate limiter and before any
+Resend call — so it exercises routing, Functions bundling, body parsing and CORS
+while sending no mail. The one destructive probe (a *valid* email POST) is behind
+`--live-post` and is not used here.
 
-| when | action | live? |
-|---|---|---|
-| T−days | `00-baseline.sh` | no — read-only |
-| T−days | `01-preflight.sh` | no — read-only |
-| T−days | `02-verify-local.sh` | no |
-| T−days | `03-ensure-project.sh --apply` → `04-set-secrets.sh --apply` | new project only |
-| T−days | `05-deploy.sh --preview --apply` → `06-verify-deploy.sh --latest` | no — pages.dev only |
-| T−1d | *(optional)* HSTS: `07-dns-cutover.sh --phase hsts --apply`, or the dashboard | no — additive |
-| T−24h | *(optional)* `07-dns-cutover.sh --phase prelower --apply` — www TTL → 60 | no — TTL only |
-| T−1h | `05-deploy.sh --production --apply` → `06-verify-deploy.sh --scope prod-deploy` | no — no DNS yet |
-| **T+0** | attach **www.pcbjam.com** to `pcbjam-site` (dashboard → Custom domains) | **yes** |
-| **T+0** | attach **pcbjam.com** the same way (`APEX_MODE=serve`) | **yes** |
-| T+5m | `08-verify-prod.sh` | verify only |
-| T+24h | `09-detach-vercel.sh --apply` | Vercel only |
+## Secrets
 
-For `APEX_MODE=redirect` instead, replace the two attach rows with
-`07 --phase rules --apply` (early, inert) then `07 --phase swap --apply` and
-`07 --phase apex --apply`, and export `APEX_MODE=redirect` so `08` asserts a 308.
+`RESEND_API_KEY`, `RESEND_SEGMENT_ID`, `WAITLIST_FROM_EMAIL`, set on the Pages
+project (dashboard → Settings → Variables and Secrets, or
+`wrangler pages secret put <NAME> --project-name pcbjam-site`). Pages applies
+changes to **new deployments only**, so redeploy after editing them.
 
-Rollback, any time: **`99-rollback.sh --apply --yes`**, or by hand — point `www`
-and the apex back to CNAME `dcfb2907091b7240.vercel-dns-016.com`, **DNS-only**.
-Vercel keeps both domains attached until `09`, so it resumes serving as soon as
-DNS propagates. Keep rollback ready in a second terminal during the attach.
+`WAITLIST_ALLOWED_ORIGINS` is deliberately unset — it keeps its default in
+`functions/api/waitlist.ts`, where the allowlist is reviewable in code. Preview is
+deliberately keyless too: a preview holding the live key would email real people
+and write real Resend contacts.
 
-### Attach, don't delete-and-recreate
+## Recovery
 
-Cloudflare's Custom Domains flow *updates* the existing `www` CNAME in place. That
-matters: deleting the record and creating a new one leaves the name with no answer
-for a second or two, and any resolver that asks in that instant caches NODATA for
-the zone's **SOA minimum** — measured at **1800s** on this zone by
-`00-baseline.sh`. That is an un-flushable ~30-minute partial outage. The in-place
-update has no DNS gap at all; the only residual window is HTTP-level and
-self-healing (a second or two where the edge has no route for the host and serves
-the Pages not-found page). Universal SSL already covers `*.pcbjam.com`, so TLS is
-never in question.
-
-`07 --phase swap` does the same thing via the API (`PATCH`, not `DELETE`+`POST`),
-and `--phase probe` settles days in advance — on a throwaway hostname — whether
-Pages will attach over an existing CNAME at all.
-
-## The parity sweep
-
-`lib/parity.sh` is one assertion set, run against four bases: live Vercel
-(baseline), `localhost:8788`, the `*.pages.dev` deployment, then `www`. Same
-question every time, so a regression has nowhere to hide.
-
-It asserts header values on the **final** response after following redirects,
-via two separate requests (`_trace` then `_headers`). That is deliberate: the
-COOP/COEP bug this migration fixes was invisible precisely because the headers
-were present on a redirect hop and absent on the document.
-
-`00-baseline.sh` is **expected to report failures** — the blog post's COOP/COEP
-is genuinely broken on Vercel today (its canonical is the trailing-slash URL,
-which serves 200 with no isolation headers). `08-verify-prod.sh` requires those
-same probes to pass, which is how the fix is proven rather than assumed.
-
-The honeypot POST is safe against production: that branch returns before
-validation, before the rate limiter and before any Resend call, so it exercises
-routing, Functions bundling, body parsing and CORS while sending no mail. The
-only destructive probe (a *valid* email POST) is gated behind `--live-post` and
-never runs against `www`.
-
-## Gates
-
-`02-verify-local.sh` writes a stamp keyed to a hash of `src/`, `public/`,
-`functions/` and the configs. `05-deploy.sh` refuses to deploy without a stamp
-for the *current* tree, and `07 --phase swap` refuses to cut DNS unless the
-verified deployment id is still the live production deployment. Override with
-`CFM_FORCE=1 CFM_I_UNDERSTAND=1`, which logs the bypass.
-
-Scratch state (stamps, snapshots, logs) lives in `site/.cf-migrate/`, gitignored.
+There is no cross-vendor fallback — the Vercel project is gone. Recovery is a
+Pages concern: every deployment stays addressable at its own `*.pages.dev` URL, so
+verify a candidate first, then either roll back to it in the dashboard
+(Deployments → Rollback to this deployment) or re-deploy a known-good tree so git
+stays the source of truth.
 
 ## Local development
 
@@ -153,3 +103,6 @@ npm run dev                        # Astro only — does NOT run functions/
 cp .dev.vars.example .dev.vars     # gitignored
 npm run build && npm run pages:dev # http://localhost:8788, Function included
 ```
+
+`astro dev` does not execute `functions/`, so any change to the waitlist endpoint
+needs `pages:dev` to be exercised at all.
diff --git a/deploy/site/lib/cf-api.sh b/deploy/site/lib/cf-api.sh
deleted file mode 100644
index ab41e25..0000000
--- a/deploy/site/lib/cf-api.sh
+++ /dev/null
@@ -1,95 +0,0 @@
-#!/usr/bin/env bash
-# Cloudflare API v4 wrapper + the DNS allowlist guard. Sourced, never executed.
-#
-# Required token scopes (one token, CLOUDFLARE_API_TOKEN):
-#   Zone   -> Zone            -> Read    (pcbjam.com)
-#   Zone   -> DNS             -> Edit    (record CRUD)
-#   Zone   -> Zone Settings   -> Edit    (HSTS / security_header)
-#   Zone   -> Dynamic Redirect-> Edit    (http_request_dynamic_redirect ruleset)
-#   Account-> Cloudflare Pages-> Edit    (project, secrets, deploy, custom domains)
-
-CF_API="https://api.cloudflare.com/client/v4"
-
-# True when a REST token is available. `wrangler login` gives an OAuth token that
-# wrangler itself uses but that cannot be replayed as a REST bearer token, and its
-# zone scope is read-only — so the DNS/ruleset/HSTS steps need a real API token
-# while the Pages steps are happy with either. Scripts branch on this.
-cf_have_token() { [ -n "${CLOUDFLARE_API_TOKEN:-}" ] && [ -n "${CLOUDFLARE_ACCOUNT_ID:-}" ]; }
-
-cf_token() {
-  [ -n "${CLOUDFLARE_API_TOKEN:-}" ] || die "CLOUDFLARE_API_TOKEN is not set.
-     \`wrangler login\` is not enough for this step: its OAuth token cannot be used
-     as a REST bearer token, and it only carries zone:read. Create an API token with
-     the scopes at the top of this file and export it (plus CLOUDFLARE_ACCOUNT_ID)."
-  printf '%s' "$CLOUDFLARE_API_TOKEN"
-}
-cf_account() {
-  [ -n "${CLOUDFLARE_ACCOUNT_ID:-}" ] || die "CLOUDFLARE_ACCOUNT_ID is not set"
-  printf '%s' "$CLOUDFLARE_ACCOUNT_ID"
-}
-
-# cf_api METHOD PATH [JSON_BODY]
-# GETs always execute (read-only). Non-GET honours DRY_RUN and prints the exact
-# call it would make, body included, so a reviewer sees it before it happens.
-cf_api() {
-  _m="$1"; _p="$2"; _b="${3:-}"
-  if [ "$_m" != "GET" ] && [ "${DRY_RUN:-1}" = 1 ]; then
-    echo "WOULD: $_m $_p" >&2
-    [ -n "$_b" ] && printf '%s\n' "$_b" | jq . >&2
-    echo '{"success":true,"result":{},"dry_run":true}'
-    return 0
-  fi
-  _log="$STATE_DIR/logs/api-$(date +%s)-$$.json"
-  if [ -n "$_b" ]; then
-    _out="$($CURL_BIN -sS -X "$_m" "$CF_API$_p" \
-      -H "Authorization: Bearer $(cf_token)" \
-      -H 'Content-Type: application/json' --data "$_b")"
-  else
-    _out="$($CURL_BIN -sS -X "$_m" "$CF_API$_p" \
-      -H "Authorization: Bearer $(cf_token)" \
-      -H 'Content-Type: application/json')"
-  fi
-  printf '%s' "$_out" > "$_log"
-  printf '%s' "$_out" | jq -e '.success == true' >/dev/null 2>&1 \
-    || die "API $_m $_p failed — see $_log
-     $(printf '%s' "$_out" | jq -r '.errors[]? | "  [\(.code)] \(.message)"' 2>/dev/null)"
-  printf '%s' "$_out"
-}
-CURL_BIN="${CURL_BIN:-curl}"
-
-cf_zone_id() {
-  if [ -s "$STATE_DIR/state/zone-id" ]; then cat "$STATE_DIR/state/zone-id"; return; fi
-  _r="$(cf_api GET "/zones?name=$ZONE_NAME")"
-  _n="$(printf '%s' "$_r" | jq '.result | length')"
-  [ "$_n" = "1" ] || die "expected exactly 1 zone named $ZONE_NAME, found $_n"
-  printf '%s' "$_r" | jq -r '.result[0].id' | tee "$STATE_DIR/state/zone-id"
-}
-
-cf_dns_list() { cf_api GET "/zones/$(cf_zone_id)/dns_records?per_page=500"; }
-
-# cf_dns_find <name> <type> -> record id ("" if none)
-cf_dns_find() {
-  cf_dns_list | jq -r --arg n "$1" --arg t "$2" \
-    '.result[] | select(.name==$n and .type==$t) | .id' | head -1
-}
-
-# THE guard. Every DNS mutation passes through this first. The zone also holds
-# app/demo/editor/cdn/assets records, the Google MX and the two _vercel TXT
-# verification records — none of which this migration may touch.
-cf_dns_guard() { # cf_dns_guard <record_id> <expected_name>
-  _r="$(cf_api GET "/zones/$(cf_zone_id)/dns_records/$1")"
-  _n="$(printf '%s' "$_r" | jq -r .result.name)"
-  _t="$(printf '%s' "$_r" | jq -r .result.type)"
-  case "$_n" in
-    "$ZONE_NAME"|"www.$ZONE_NAME"|"cf-attach-probe.$ZONE_NAME") : ;;
-    *) die "refusing to touch DNS record '$_n' (allowlist: apex, www, cf-attach-probe)" ;;
-  esac
-  [ "$_n" = "$2" ] || die "record $1 is '$_n', expected '$2' (stale id? re-run 01-preflight.sh)"
-  case "$_t" in
-    A|CNAME) : ;;
-    *) die "refusing to touch a $_t record ($_n) — only A/CNAME are in scope" ;;
-  esac
-}
-
-cf_pages_project() { cf_api GET "/accounts/$(cf_account)/pages/projects/$PAGES_PROJECT"; }
-cf_pages_domains() { cf_api GET "/accounts/$(cf_account)/pages/projects/$PAGES_PROJECT/domains"; }
diff --git a/deploy/site/lib/common.sh b/deploy/site/lib/common.sh
index 28209fd..47f66bc 100644
--- a/deploy/site/lib/common.sh
+++ b/deploy/site/lib/common.sh
@@ -1,143 +1,38 @@
 #!/usr/bin/env bash
-# Shared plumbing for the deploy/site cf-migrate scripts: paths, logging,
-# dry-run, stamps and guards. Sourced, never executed.
+# Shared plumbing for the site verification scripts: paths, config, logging.
+# Sourced, never executed.
 #
 # bash 3.2 compatible (/usr/bin/env bash on macOS is 3.2.57): no associative
 # arrays, no `mapfile`, no ${x,,}. Accumulators use temp files.
 
-# Repo + site paths. Every script cd's to SITE_DIR before building or deploying:
-# `wrangler pages deploy` discovers Functions at $PWD/functions, so running from
-# the wrong directory silently ships a static-only site with /api/waitlist 404ing.
 LIB_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 DEPLOY_SITE_DIR="$(dirname "$LIB_DIR")"
 PCBJAM_DIR="$(cd "$DEPLOY_SITE_DIR/../.." && pwd)"
 SITE_DIR="$PCBJAM_DIR/site"
-STATE_DIR="$SITE_DIR/.cf-migrate"
 
-# Defaults, overridable by env.
+# Defaults, all overridable by env — which is how you point the sweep at a
+# preview deployment instead of production:
+#   PROD_BASE=https://abc123.pcbjam-site.pages.dev deploy/site/verify.sh
 PAGES_PROJECT="${PAGES_PROJECT:-pcbjam-site}"
-PAGES_PROD_BRANCH="${PAGES_PROD_BRANCH:-production}"
 ZONE_NAME="${ZONE_NAME:-pcbjam.com}"
 PROD_BASE="${PROD_BASE:-https://www.pcbjam.com}"
 APEX_BASE="${APEX_BASE:-https://pcbjam.com}"
-VERCEL_PROJECT="${VERCEL_PROJECT:-pcbjam}"
-VERCEL_TEAM="${VERCEL_TEAM:-pcbj-am}"
-VERCEL_DNS_TARGET="${VERCEL_DNS_TARGET:-dcfb2907091b7240.vercel-dns-016.com}"
-# How the apex behaves. Two supported topologies:
-#   serve    (default) apex is a SECOND Pages custom domain and serves 200. No
-#            redirect rule, no placeholder record — the same two clicks as any
-#            other host. Pages still emit canonical=www so search consolidates.
-#   redirect apex 308s to www via a zone Redirect Rule + proxied placeholder
-#            record. This is what Vercel did, and needs zone DNS/rules scopes.
-APEX_MODE="${APEX_MODE:-serve}"
 WRANGLER="${WRANGLER_CMD:-npx --yes wrangler@4}"
 
-mkdir -p "$STATE_DIR/state" "$STATE_DIR/stamps" "$STATE_DIR/baseline" "$STATE_DIR/logs"
+# How the apex behaves.
+#   serve    (current) the apex is a SECOND Pages custom domain and answers 200.
+#            No redirect rule, no placeholder record. The pages emit
+#            canonical=www, which is what consolidates the two hosts for search.
+#   redirect the apex 308s to www. Kept because the assertion is cheap to keep
+#            and the decision could be revisited; nothing sets it up any more.
+APEX_MODE="${APEX_MODE:-serve}"
 
 section() { echo; echo "== $* =="; }
 warn()    { echo "warn: $*" >&2; }
-die()     { echo "cf-migrate: $*" >&2; exit 1; }
+die()     { echo "verify: $*" >&2; exit 1; }
 
 require_cmd() {
   for c in "$@"; do
     command -v "$c" >/dev/null 2>&1 || die "missing required command: $c"
   done
 }
-
-# Refuse to run under `set -x` where secrets would land in the log.
-no_xtrace() {
-  case "$-" in
-    *x*) die "refusing to run under 'set -x' (secrets would be echoed)" ;;
-  esac
-}
-
-# Identity of "the thing that was verified" — the inputs that affect the built
-# output. Stamps are keyed on this so a stamp can never vouch for a later edit.
-ctx_hash() {
-  ( cd "$SITE_DIR" && \
-    find src public functions astro.config.mjs package.json package-lock.json \
-         wrangler.toml -type f 2>/dev/null \
-    | LC_ALL=C sort | tr '\n' '\0' | xargs -0 shasum -a 256 2>/dev/null \
-    | shasum -a 256 | cut -c1-16 )
-}
-
-stamp_write() {
-  _name="$1"; shift
-  _f="$STATE_DIR/stamps/${_name}.$(ctx_hash)"
-  {
-    echo "ts=$(date -u +%Y-%m-%dT%H:%M:%SZ)"
-    echo "ctx=$(ctx_hash)"
-    echo "git=$(git -C "$PCBJAM_DIR" rev-parse --short=7 HEAD 2>/dev/null || echo unknown)"
-    for kv in "$@"; do echo "$kv"; done
-  } > "$_f"
-  echo "stamped: ${_name} (ctx=$(ctx_hash))"
-}
-
-# Dies unless a stamp for the CURRENT ctx_hash exists and is fresh.
-# CFM_FORCE=1 downgrades to a loud warning; it also requires CFM_I_UNDERSTAND=1.
-stamp_require() {
-  _name="$1"; _max_h="${2:-${STAMP_MAX_AGE_H:-24}}"
-  _f="$STATE_DIR/stamps/${_name}.$(ctx_hash)"
-  if [ ! -f "$_f" ]; then
-    if [ "${CFM_FORCE:-0}" = 1 ] && [ "${CFM_I_UNDERSTAND:-0}" = 1 ]; then
-      warn "BYPASS: no '${_name}' stamp for the current tree, continuing anyway"
-      return 0
-    fi
-    die "no '${_name}' stamp for the current tree (ctx=$(ctx_hash)).
-     The site changed since it was last verified. Run the matching script first:
-       ${_name} -> see deploy/site/README.md
-     To override (not advised): CFM_FORCE=1 CFM_I_UNDERSTAND=1 $0 ..."
-  fi
-  _age=$(( ( $(date +%s) - $(stat -f %m "$_f" 2>/dev/null || echo 0) ) / 3600 ))
-  if [ "$_age" -ge "$_max_h" ]; then
-    if [ "${CFM_FORCE:-0}" = 1 ] && [ "${CFM_I_UNDERSTAND:-0}" = 1 ]; then
-      warn "BYPASS: '${_name}' stamp is ${_age}h old (max ${_max_h}h), continuing"
-      return 0
-    fi
-    die "'${_name}' stamp is ${_age}h old (max ${_max_h}h) — re-verify."
-  fi
-}
-
-# --- dry run ---------------------------------------------------------------
-# DRY_RUN=1 is the DEFAULT for every mutating script. `--apply` clears it.
-DRY_RUN="${DRY_RUN:-1}"
-
-parse_common_flags() {
-  CFM_ARGS=""
-  for a in "$@"; do
-    case "$a" in
-      --apply)    DRY_RUN=0 ;;
-      --dry-run)  DRY_RUN=1 ;;
-      --yes)      CFM_YES=1 ;;
-      *)          CFM_ARGS="$CFM_ARGS $a" ;;
-    esac
-  done
-}
-
-# dry "<label>" -- cmd...   → prints WOULD in dry-run, else runs.
-dry() {
-  _label="$1"; shift
-  [ "$1" = "--" ] && shift
-  if [ "$DRY_RUN" = 1 ]; then
-    echo "WOULD: $_label"
-    echo "     \$ $*"
-    return 0
-  fi
-  echo "RUN:   $_label"
-  "$@"
-}
-
-confirm_cutover() {
-  [ "${CFM_YES:-0}" = 1 ] && return 0
-  echo
-  echo "This mutates PRODUCTION DNS for $ZONE_NAME."
-  printf 'Type CUTOVER to proceed: '
-  read -r _reply
-  [ "$_reply" = "CUTOVER" ] || die "aborted (got '$_reply')"
-}
-
-dry_banner() {
-  if [ "$DRY_RUN" = 1 ]; then
-    echo "(dry run — nothing will be changed. re-run with --apply to act.)"
-  fi
-}
diff --git a/deploy/site/lib/parity.sh b/deploy/site/lib/parity.sh
index 411fb44..0ff2340 100644
--- a/deploy/site/lib/parity.sh
+++ b/deploy/site/lib/parity.sh
@@ -1,11 +1,15 @@
 #!/usr/bin/env bash
-# The one HTTP parity sweep. Sourced by the verify scripts and run against four
-# bases, so "did anything change?" is always the same question:
+# The one HTTP parity sweep. Point it at any base URL and it asks the same
+# question, so a regression has nowhere to hide:
 #
-#   https://www.pcbjam.com                  live Vercel (baseline)
-#   http://127.0.0.1:8788                   wrangler pages dev
-#   https://<hash>.pcbjam-site.pages.dev    the Pages deployment, pre-DNS
-#   https://www.pcbjam.com                  after cutover
+#   https://www.pcbjam.com                  production
+#   https://<hash>.pcbjam-site.pages.dev    a specific deployment, before promoting
+#   http://127.0.0.1:8788                   `wrangler pages dev` locally
+#
+# It was written for the Vercel -> Cloudflare Pages migration and several
+# assertions exist because that migration found real defects; the comments say
+# which, since the reason is the only thing stopping someone "simplifying" them
+# back out.
 #
 # Usage:  assert_parity <base-url> [--scope local|preview|prod] [--live-post]
 # Exit:   0 if every hard assertion passed (warnings do not fail), else 1.
@@ -331,8 +335,8 @@ assert_apex_serves() {
   return $_rc
 }
 
-# APEX_MODE=redirect: apex -> www, path + query preserved. Also used by
-# 00-baseline.sh, since that is what Vercel does today.
+# APEX_MODE=redirect: apex -> www, path + query preserved. Unused with the
+# current `serve` topology; kept in case that decision is revisited.
 assert_apex_redirect() {
   _apex="${1:-$APEX_BASE}"
   section "apex redirect: $_apex"
diff --git a/deploy/site/verify.sh b/deploy/site/verify.sh
new file mode 100755
index 0000000..eb7509a
--- /dev/null
+++ b/deploy/site/verify.sh
@@ -0,0 +1,118 @@
+#!/usr/bin/env bash
+# Health check for www.pcbjam.com — the Astro marketing site on Cloudflare Pages.
+#
+#   deploy/site/verify.sh                                   # production
+#   PROD_BASE=https://abc123.pcbjam-site.pages.dev \
+#     deploy/site/verify.sh --skip-dns --skip-domains        # one deployment
+#   EXPECT_HSTS=1 deploy/site/verify.sh                      # strict on HSTS
+#
+# Read-only: it makes GET/OPTIONS/POST requests and changes nothing. The POSTs are
+# side-effect-free — the full-path probe uses the endpoint's honeypot branch,
+# which returns before validation, before the rate limiter and before any Resend
+# call, so it sends no mail and creates no contact.
+#
+# Exit 0 if every hard assertion passes. Warnings do not fail.
+set -euo pipefail
+. "$(dirname "$0")/lib/common.sh"
+. "$(dirname "$0")/lib/parity.sh"
+
+require_cmd curl jq awk sed
+
+SKIP_DNS=0; SKIP_DOMAINS=0
+while [ $# -gt 0 ]; do
+  case "$1" in
+    --skip-dns) SKIP_DNS=1; shift ;;
+    --skip-domains) SKIP_DOMAINS=1; shift ;;
+    -h|--help) sed -n '2,14p' "$0"; exit 0 ;;
+    *) die "unknown arg: $1" ;;
+  esac
+done
+
+rc=0
+
+if [ "$SKIP_DNS" = 0 ]; then
+  require_cmd dig
+  section "DNS"
+  # Both hosts are PROXIED Pages custom domains, so they answer with Cloudflare
+  # anycast A records and expose no CNAME — an empty CNAME here is the expected
+  # state, not a problem. Failing to resolve at all is what's worth catching.
+  for h in "$ZONE_NAME" "www.$ZONE_NAME"; do
+    a="$(dig +short A "$h" | tr '\n' ' ')"
+    printf '  %-20s A=%s\n' "$h" "${a:-<none>}"
+    [ -n "$a" ] || { echo "  FAIL   $h does not resolve"; rc=1; }
+  done
+fi
+
+section "served by Cloudflare"
+h="$(_headers "$PROD_BASE/")"
+if [ -n "$(_hdr "$h" cf-ray)" ]; then
+  echo "  PASS   cf-ray present"
+else
+  echo "  FAIL   no cf-ray — not being served through Cloudflare"; rc=1
+fi
+
+assert_parity "$PROD_BASE" --scope prod || rc=$?
+assert_apex "$APEX_BASE" || rc=$?
+
+section "cross-origin isolation on BOTH URL forms of the Gerber post"
+# Explicit and duplicated on purpose. The bare form 308s to the trailing-slash
+# form, and the trailing-slash form is the page's own canonical — what search
+# sends people to. Scoping these headers to one form only is exactly the defect
+# this site shipped with before the migration, and it is silent: the page renders
+# fine, the embedded viewer just loses SharedArrayBuffer and degrades.
+for path in /blog/porting-kicad-graphics-to-webgl-in-2026 /blog/porting-kicad-graphics-to-webgl-in-2026/; do
+  eff="$(_trace "$PROD_BASE$path" | cut -f1)"
+  hh="$(_headers "$eff")"
+  coop="$(_hdr "$hh" cross-origin-opener-policy)"; coep="$(_hdr "$hh" cross-origin-embedder-policy)"
+  if [ "$coop" = same-origin ] && [ "$coep" = require-corp ]; then
+    echo "  PASS   $path -> isolated"
+  else
+    echo "  FAIL   $path -> coop='${coop:-absent}' coep='${coep:-absent}' ($eff)"; rc=1
+  fi
+done
+
+section "demo integration (load-bearing)"
+# demo.pcbjam.com has no backend of its own and cross-posts the waitlist form
+# here. A CORS preflight cannot follow a redirect, so this must be 204 with zero
+# hops — put a redirect in front of the endpoint and the demo breaks silently.
+hops="$(curl -sS -o /dev/null -w '%{num_redirects}' -X OPTIONS "$PROD_BASE/api/waitlist" \
+         -H 'Origin: https://demo.pcbjam.com' 2>/dev/null || echo 9)"
+st="$(curl -sS -o /dev/null -w '%{http_code}' -X OPTIONS "$PROD_BASE/api/waitlist" \
+       -H 'Origin: https://demo.pcbjam.com' -H 'Access-Control-Request-Method: POST' 2>/dev/null || true)"
+if [ "$st" = "204" ] && [ "$hops" = "0" ]; then
+  echo "  PASS   preflight 204 with 0 redirects"
+else
+  echo "  FAIL   status=$st hops=$hops (both 204 and 0 hops are required)"; rc=1
+fi
+
+if [ "$SKIP_DOMAINS" = 0 ]; then
+  section "custom domains on $PAGES_PROJECT"
+  doms="$($WRANGLER pages project list --json 2>/dev/null \
+           | jq -r --arg n "$PAGES_PROJECT" '.[] | select(."Project Name"==$n) | ."Project Domains"' || true)"
+  if [ -z "$doms" ]; then
+    warn "could not list projects (is \`wrangler login\` valid?) — skipping"
+  else
+    echo "  $doms"
+    want="www.$ZONE_NAME"
+    [ "${APEX_MODE:-serve}" = serve ] && want="$want $ZONE_NAME"
+    for d in $want; do
+      case ",$(printf '%s' "$doms" | tr -d ' ')," in
+        *",$d,"*) echo "  PASS   $d attached" ;;
+        *) echo "  FAIL   $d NOT attached"; rc=1 ;;
+      esac
+    done
+  fi
+fi
+
+section "summary"
+if [ "$rc" -ne 0 ]; then
+  echo "FAILED. To recover, promote a previous deployment:"
+  echo "  Workers & Pages -> $PAGES_PROJECT -> Deployments -> Rollback to this deployment"
+  echo "or redeploy a known-good tree (git stays the source of truth):"
+  echo "  git checkout <good-commit> -- site/"
+  echo "  (cd site && npm ci && npm run build && npx --yes wrangler@4 pages deploy \\"
+  echo "     --project-name $PAGES_PROJECT --branch production)"
+  exit 1
+fi
+echo "All checks passed."
+echo "done: $PROD_BASE"
diff --git a/site/README.md b/site/README.md
index 7cdf4ed..f816fc6 100644
--- a/site/README.md
+++ b/site/README.md
@@ -94,4 +94,5 @@ carries the COOP/COEP rules the embedded Gerber viewer needs. Do **not** widen
 them to `/*` — the landing page must stay un-isolated so the YouTube hero embed
 loads.
 
-The full one-time setup and the cutover runbook are in `../deploy/site/README.md`.
+One-time setup, the invariants that fail silently if changed, and the health
+check (`deploy/site/verify.sh`) are in `../deploy/site/README.md`.
diff --git a/site/wrangler.toml b/site/wrangler.toml
index 456e96a..2efab72 100644
--- a/site/wrangler.toml
+++ b/site/wrangler.toml
@@ -12,8 +12,8 @@
 # and locally come from .dev.vars (gitignored). WAITLIST_ALLOWED_ORIGINS is
 # deliberately unset so it keeps the default in functions/api/waitlist.ts.
 #
-# The custom domain (www.pcbjam.com) is attached out of band too — there is no
-# `wrangler pages domain` subcommand; see deploy/site/README.md.
+# The custom domains (www.pcbjam.com and the apex) are attached out of band too —
+# there is no `wrangler pages domain` subcommand; see deploy/site/README.md.
 
 name = "pcbjam-site"
 pages_build_output_dir = "./dist"