feat(fs-search): spawn the packaged ripgrep binary through the subprocess seam

glob/grep now run the @vscode/ripgrep binary via ctx.subprocess with a plain
argv vector: no system rg install, no shell layer, unconditional registration.
The load-time command -v rg probe and the bash-seam coupling are removed;
timeouts ride the cooperative exec.signal plus the seam's terminate
escalation. The fs-glob-sampling ACP snapshot executes the real packaged
binary against an mtime-pinned fixture. Adds the packaged-ripgrep-search
Agent Note, updates the roster-note facts and both shipped-composition e2es,
and regenerates the doc catalogs and third-party notices (surfacing
pre-existing manifest drift plus the new @vscode/ripgrep row; the notices
generator also learns pnpm 11's truncated virtual-store names).

apps/cli/tests/shipped-composition.e2e.ts

@@ -54,10 +54,10 @@ const EXPECTED_TUI_TOOLS = [
 ]
 
 /**
- * `glob` and `grep` come from `dsh-tool-fs-search`, which probes `command -v rg`
- * through the mounted bash executor at load and registers neither tool when
- * ripgrep is absent. That is a host dependency, not a composition decision, so the
- * pair is asserted separately — present together or absent together.
+ * `glob` and `grep` come from `dsh-tool-fs-search`, which spawns the PACKAGED
+ * ripgrep binary (`@vscode/ripgrep`) through the subprocess seam, so the pair
+ * is always present on every host — asserted as fixed members, not a host
+ * dependency.
  */
 const RIPGREP_TOOLS = ['glob', 'grep']
 
@@ -117,7 +117,9 @@ describe('shipped dsh composition (real Loader tree in a PTY)', () => {
     })
     expect(output).toContain(COMPOSITION_REPLY_TEXT)
     expect(observed?.names.filter(name => !RIPGREP_TOOLS.includes(name))).toEqual(EXPECTED_TUI_TOOLS)
-    expect([[], RIPGREP_TOOLS]).toContainEqual(observed?.names.filter(name => RIPGREP_TOOLS.includes(name)))
+    // The packaged ripgrep binary ships with the dependency, so the pair is a
+    // fixed roster member on every host.
+    expect(observed?.names.filter(name => RIPGREP_TOOLS.includes(name))).toEqual(RIPGREP_TOOLS)
     // The TUI mounts the unrestricted local executors, so `tool-bash` emits no
     // escalation pair. Pinning its absence keeps a later sandbox change from
     // arriving here unannounced.