fix(calls): wire DTLN ML denoise correctly via @workadventure JS API

The prior DTLN attempt (89a2321d) broke the build (missing dep, wrong
`cinny/` asset paths) and typecheck (`'dtln'` not in DenoiseModelId), and was
wired against an API the package doesn't expose. @workadventure/noise-
suppression is not a flat AudioWorklet — it's a self-contained ES module whose
processor name is `workadventure-noise-suppression` and which resolves its own
LiteRT WASM + TFLite models via import.meta.url. Driving it by hand-rolled
addModule + processorOptions cannot work.

- Re-add @workadventure/noise-suppression@0.0.4 (package.json + lockfile).
- vite: copy the package's whole dist/ tree intact to
  denoise/workadventure/ (preserving assets/ + vendor/litert) so import.meta
  resolution works at runtime; fail the build if the entry module is missing.
- shim: for the DTLN model, dynamic-import denoise/workadventure/audio-worklet
  .js and use createNoiseSuppressionAudioWorklet(ctx, { bypassUntilReady })
  to build the node; RNNoise/Speex keep their direct flat-worklet path. Async
  init errors are logged + reported and fall back to the raw mic.
- Restore 'dtln' in DenoiseModelId (+ settings coercion), the model chart, and
  the settings dropdown, labelled "(beta)".

DTLN builds and is fully self-hosted, but its in-call audio is UNVERIFIED in
this environment — needs a real-call test. DeepFilterNet stays excluded (CDN
asset loading, incompatible with self-hosting / Tauri CSP).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

vite.config.js

@@ -97,35 +97,6 @@ function lotusDenoise() {
           path.join(sapphi, 'noiseGate/workletProcessor.js'),
           path.join(denoiseDir, 'noiseGateWorklet.js'),
         ],
-        // DTLN (WorkAdventure v0.0.4)
-        [
-          path.resolve('cinny/node_modules/@workadventure/noise-suppression/dist/audio-worklet.js'),
-          path.join(denoiseDir, 'dtlnWorklet.js'),
-        ],
-        [
-          path.resolve(
-            'cinny/node_modules/@workadventure/noise-suppression/dist/assets/audio-worklet-processor.js',
-          ),
-          path.join(denoiseDir, 'dtlnProcessor.js'),
-        ],
-        [
-          path.resolve(
-            'cinny/node_modules/@workadventure/noise-suppression/dist/vendor/litert/litert_wasm_internal.wasm',
-          ),
-          path.join(denoiseDir, 'litert_wasm_internal.wasm'),
-        ],
-        [
-          path.resolve(
-            'cinny/node_modules/@workadventure/noise-suppression/dist/assets/model_quant_1.tflite',
-          ),
-          path.join(denoiseDir, 'model_1.tflite'),
-        ],
-        [
-          path.resolve(
-            'cinny/node_modules/@workadventure/noise-suppression/dist/assets/model_quant_2.tflite',
-          ),
-          path.join(denoiseDir, 'model_2.tflite'),
-        ],
       ];
       const missing = assets.filter(([s]) => !fs.existsSync(s)).map(([s]) => s);
       if (missing.length > 0) {
@@ -135,6 +106,23 @@ function lotusDenoise() {
       }
       assets.forEach(([s, d]) => fs.copyFileSync(s, d));
 
+      // DTLN (@workadventure/noise-suppression): unlike the flat sapphi
+      // worklets, this package is a self-contained ES module that resolves its
+      // own AudioWorklet processor, LiteRT WASM runtime and TFLite models via
+      // `import.meta.url`. So we copy its whole dist/ tree intact to
+      // denoise/workadventure/ (preserving assets/ + vendor/) and let the shim
+      // dynamic-import denoise/workadventure/audio-worklet.js at runtime. The
+      // entry module is required — fail the build if the install is broken.
+      const dtlnSrc = path.resolve('node_modules/@workadventure/noise-suppression/dist');
+      const dtlnEntry = path.join(dtlnSrc, 'audio-worklet.js');
+      if (!fs.existsSync(dtlnEntry)) {
+        throw new Error(
+          `[lotus-denoise] DTLN entry missing (${dtlnEntry}) — build aborted. ` +
+            'Run `npm ci` to install @workadventure/noise-suppression.',
+        );
+      }
+      fs.cpSync(dtlnSrc, path.join(denoiseDir, 'workadventure'), { recursive: true });
+
       const shimSrc = path.resolve('build/lotus-denoise.js');
       if (!fs.existsSync(shimSrc)) {
         throw new Error(`[lotus-denoise] Missing shim source ${shimSrc} — build aborted.`);