jspi: fix the dead-tools ownership bug, emscripten-6 fallout, and green the full suite on Playwright 1.62

Live-app fix (Place Footprints / routing dead in Chrome): submodule
bumps carry the coroutine ownership fix (kicad 012d95ecb4) and the
handler-exception survival fix (wxwidgets 1b5f0e31f4).

Emscripten-6 fallout:
- occ/ngspice worker wrappers: mainScriptUrlOrBlob was removed
  upstream; pthread children re-run the wrapper blob, so an em-pthread
  realm now importScripts the glue and gets out of the way (before:
  recursive service boots, pool never fills, silent 180s boot hangs —
  every occ spec and ngspice bg_run).
- Makefile.wasm: -sASYNCIFY frankenlinks on the no-wx coroutine repro
  targets ported to -sJSPI (the JSPI-only libcontext crashed at first
  yield under them); mainloop/gl repro pages drive their tick through a
  promising export (emscripten_set_main_loop callbacks cannot suspend);
  retired inject-dyncall-shims lines removed (targets were unbuildable
  since Phase 8); $stringToNewUTF8 force-included (the EM_ASM value
  bridge aborted the runtime on the first decoded exception).
- fiber-park levers: neither embind shape can drive suspending levers
  (plain throws on strict-JSPI Firefox; emscripten::async() re-executes
  its invoker on settle) — kept sync for manual Chromium probing, spec
  coverage moved to the jspi-coroutine harness (18 cases).

Suite work:
- Playwright 1.61.1 -> 1.62.1 (Firefox 153: JSPI on by default).
- fiber-resume-park.spec retired -> coroutine-lifecycle.spec: census
  gate over boot / board load / chooser open / cancel (deterministically
  red on the pre-fix build).
- Blind asyncify-era pins re-keyed: quasimodal-strand + wait-beacons
  beacon regexes, footprint-chooser-close liveness -> wx parking-timer
  heartbeat (scheduler counters idle flat on Firefox).
- occ/ngspice test providers: 60s boot timeout + worker error
  surfacing (a worker death used to be a silent 180s timeout).
- Harness pages: stale 9.99 config dir -> 10.0 (library_manager wxCHECK
  noise, chooser had no libraries).
- gal-webgl harness: missing artifacts rebuilt (boost/glm extracted to
  the host sysroot), PgmOrNull stub added for the rebased GAL.
- jspi-scheduler: clean-shutdown console line restored (app-quit
  contract), quarantine never yanks SP from a live window.

Gates: test:e2e 699 passed / 0 failed (wx-chromium, kicad-firefox,
kicad-chromium, jspi-firefox, coroutine-firefox); web ff/cr/mobile 71
passed; lint:ci-coverage 166, lint:determinism 163, screenshots
manifest 492 current, corpus 7/7, tools:contract green. Offline
screenshot baselines show expected mass drift from the engine bump —
re-baseline (screenshots:noise -> promote) is a follow-up.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016X9eh1s5sTx1o9Em9KBuwR

scripts/common/shims/jspi-scheduler.js

@@ -186,6 +186,11 @@
     // (wxWasmYieldUntil inside the load) find a tracked record and get the
     // green-copy spill-stack discipline. Embind names live on Module WITHOUT
     // the underscore prefix, hence the separate installer.
+    // NOT here: the kicadTestFiberPark* levers. They are emscripten::async()
+    // (a plain embind call into a suspending body throws on strict-JSPI
+    // Firefox), but the parker wrap's turnstile queueing would DEFER a
+    // mid-park poke until the park drains — the exact race the levers exist
+    // to stage. Their suspensions ride the untracked-anon-record path.
     PARKER_NAMES: ["kicadOpenFile", "kicadOpenFiles", "kicadLibsReload"],
     _wrapParkers: function () {
       var wrapped = 0;
@@ -301,6 +306,10 @@
       var stranded = this.waits.size;
       if (stranded) {
         console.warn("[wx-scheduler] shutdown (" + why + ") stranded:" + stranded);
+      } else {
+        // teardown-gate contract (e2e/app-quit.spec.ts, ported from the
+        // asyncify shim): a clean exit must SAY so on the console
+        console.log("[wx-scheduler] shutdown (" + why + ") clean");
       }
       this._note("shutdown", why, stranded);
     },
@@ -680,8 +689,14 @@
       rec.dead = true;
       this._suspended.delete(rec.id);
       if (this._windowLive === rec) {
+        // Released from within its own running slice: that slice's wasm is
+        // executing on this region RIGHT NOW — restoring the enclosing SP
+        // here would yank the stack out from under it. Just drop the window
+        // marker; the turnstile moves on when this job ends. (g_current is
+        // reset C-side by release_fcontext.)
+        console.warn("[wx-scheduler] quarantine of the LIVE window lc" + id
+          + " — self-release mid-slice; skipping SP restore");
         this._windowLive = null;
-        if (rec.enclosingSp !== undefined) this._setSp(rec.enclosingSp);
       }
       delete this._libctxRecs[id];
       this._note("libctxQuarantine", "libctx", rec.id);