fix(media-use): use a host app's music tools; fail loudly without the heygen CLI (#5154)

* fix(media-use): use a host app's music tools; fail loudly without the heygen CLI

* fix(media-use): name the heygen CLI only for music and sound effects; keep the sfx test offline

* fix(skills): workflow skills use a host app's own music tools first

* fix(skills): say how a host app's music track reaches the narrated workflows

* fix(skills): set a host app's music track after the last audio pass

* fix(skills): a host-music film with no narration still fetches its sound effects

* fix(media-use): keep the stub-failure test off the machine's heygen CLI; sync the skills manifest

* fix(skills): audio passes keep a host app's music and sounds; silent needs no sound cues

* fix(skills): host audio keeps string frames, stops on a broken audio_meta.json, survives a re-run

* fix(skills): report a host audio entry with no path and a broken sidecar instead of crashing

* fix(skills): keep host audio written while an audio pass runs

* test(cli): serve the telemetry capture while the resolve child waits on it

* test(cli): fail the telemetry capture when the resolve child exits non-zero

* style(skills): wrap the host audio comment to the 120-column limit

scripts/generate-skill-module-copies.mjs

@@ -13,6 +13,10 @@ export const skillModuleCopies = [
     "skills/media-use/audio/scripts/lib/bgm-volume.mjs",
     workflows.map((skill) => `skills/${skill}/scripts/lib/bgm-volume.mjs`),
   ],
+  [
+    "skills/media-use/audio/scripts/lib/host-audio.mjs",
+    workflows.map((skill) => `skills/${skill}/scripts/lib/host-audio.mjs`),
+  ],
   [
     "skills/hyperframes/scripts/lib/frame-packets-core.mjs",
     [...workflows, "general-video"].map(