feat: libs 0009-B — footprint serve + read wiring (GPL backend + standalone): extForKind .kicad_mod read/write, kind-filtered listLibs, LibsSource.listLibs(kind) threaded + boot per-tool kind; footprint-browse-remote e2e green (opens real capped 10.0.3 fp); bump pcbjam-shared

web/standalone/src/wasm/boot.ts

@@ -121,7 +121,8 @@ async function doBoot(opts: BootOptions): Promise<void> {
     installLibsProvider(libsSource, log);
     try {
       // Ensure the owner has at least one writable user lib to save items into.
-      let libsList = await libsSource.listLibs();
+      // Pass the tool's kind so origins are filtered to the right domain.
+      let libsList = await libsSource.listLibs(libKind);
       if (libsSource.createLib && !libsList.some((l) => l.type === "user")) {
         const created = await libsSource.createLib(DEFAULT_USER_LIB_NAME);
         if (created) {

web/standalone/src/wasm/libs/remote-source.ts

@@ -30,8 +30,8 @@ export function remoteLibsSource(
     `${encodeURIComponent(kind)}/${encodeURIComponent(name)}`;
 
   return {
-    async listLibs(): Promise<LibInfo[]> {
-      const res = await client.listLibs();
+    async listLibs(kind?: string): Promise<LibInfo[]> {
+      const res = await client.listLibs({ query: { kind } });
       if (res.status !== 200) return [];
       return res.body.map((l) => ({
         id: l.id,

web/standalone/src/wasm/libs/source.ts

@@ -21,8 +21,13 @@ export interface LibItemInfo {
 }
 
 export interface LibsSource {
-  /** Libraries to expose to the editor (one sym-lib-table row each). */
-  listLibs(): Promise<LibInfo[]>;
+  /**
+   * Libraries to expose to the editor (one lib-table row each). `kind` (the
+   * current tool's item kind, "symbol" | "footprint") filters origins to those
+   * holding that kind; user libs are kind-agnostic containers, always listed.
+   * Omitted ⇒ all libs.
+   */
+  listLibs(kind?: string): Promise<LibInfo[]>;
   /** Items in a library (by lib id). */
   listItems(libId: string): Promise<LibItemInfo[]>;
   /**

web/standalone/src/wasm/libs/spike-writable.ts

@@ -36,16 +36,17 @@ function withSpikeKindLib(
   const isSpike = (libId: string) => libId === spec.id;
 
   return {
-    async listLibs(): Promise<LibInfo[]> {
+    async listLibs(kind?: string): Promise<LibInfo[]> {
       // Resilient to a missing backend: the spike must boot standalone (the
       // writable lib is in-memory), so an unreachable inner source just yields
       // no origins rather than failing the whole table.
       let base: LibInfo[] = [];
       try {
-        base = inner ? await inner.listLibs() : [];
+        base = inner ? await inner.listLibs(kind) : [];
       } catch (e) {
         log(`[libs] spike: inner listLibs failed, origins omitted: ${String(e)}`);
       }
+      // The spike lib is the writable target for its kind (mimics a user lib).
       return [...base, { id: spec.id, name: spec.name, type: "user" }];
     },
 

web/standalone/src/wasm/libs/static-source.ts

@@ -58,8 +58,9 @@ const SYMBOLS: Record<string, string> = {
 
 export function staticLibsSource(): LibsSource {
   return {
-    async listLibs(): Promise<LibInfo[]> {
-      return [STATIC_LIB];
+    async listLibs(kind?: string): Promise<LibInfo[]> {
+      // The built-in example lib is symbols-only.
+      return !kind || kind === "symbol" ? [STATIC_LIB] : [];
     },
     async listItems(libId: string): Promise<LibItemInfo[]> {
       if (libId !== STATIC_LIB.id) return [];