Audio capture and streaming app for webOS 5/6

Captures the TV's audio and sends it out over several transports. The
primary one is HyperHDR: RTP/L16 to a host-side loopback device, since
HyperHDR has no network audio input of its own. A second route renders
the spectrum on the TV and sends FlatBuffers images to port 19400
instead, for setups where touching the host's sound config is not an
option.

  native/       the service: capture backends (PulseAudio, ALSA, exec,
                test tone, all dlopen-based), DSP, and one file per sink
  frontend/     D-pad driven UI at a fixed 1920x1080
  servicefiles/ native service manifest plus the boot script
  host/         RTP receiver and the loopback installer for the HyperHDR
                machine
  tools/        build/package, asset generation, Homebrew Channel
                manifest, on-TV probe
  test/         host-side suites: FlatBuffers and RTP verified against
                real decoders, the engine end to end, the page in jsdom

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

package.json

@@ -0,0 +1,27 @@
+{
+  "name": "lgtv-audio-cap",
+  "version": "1.0.0",
+  "private": true,
+  "description": "Captures audio on an LG webOS 5/6 TV and streams it out — HyperHDR first, plus raw UDP, TCP and HTTP.",
+  "keywords": ["webos", "lgtv", "hyperhdr", "hyperion", "audio", "webosbrew"],
+  "license": "MIT",
+  "scripts": {
+    "build": "tools/build.sh",
+    "native": "tools/build.sh native",
+    "stage": "tools/build.sh stage",
+    "package": "tools/build.sh package",
+    "deploy": "tools/build.sh install && tools/build.sh launch",
+    "install-tv": "tools/build.sh install",
+    "launch": "tools/build.sh launch",
+    "logs": "tools/build.sh logs",
+    "clean": "tools/build.sh clean",
+    "test": "test/run-tests.sh",
+    "assets": "python3 tools/make-assets.py",
+    "manifest": "python3 tools/make-manifest.py",
+    "serve": "python3 -m http.server 8000 --directory frontend"
+  },
+  "devDependencies": {
+    "@webosose/ares-cli": "^3.0.0",
+    "jsdom": "^24.0.0"
+  }
+}