feat(tts): add api endpoints and optimization for apple silicon

Introduce a comprehensive TTS/ASR module that:
- Adds /v1/tts-asr/config, /status, /warmup, /tts, /asr endpoints with detailed JSON responses
- Implements Apple‑Silicon detection, device selection (MPS/CUDA/CPU), and memory limiting logic
- Supports selectable model size, quantization, and offline mode via environment variables
- Adds robust audio validation and multi‑path resampling fallback
- Provides new README sections for API usage, device detection, and performance benchmarking
- Includes a full testing suite: unit tests, integration tests, macOS simulation and performance reports
- Updates backend dependencies and CI scripts
- Adds new front‑end views and components for Univer editor integration

All changes are backward compatible; new features are exposed through environment variables and new API routes.

package.json

@@ -17,6 +17,11 @@
     "@milkdown/kit": "^7.18.0",
     "@milkdown/theme-nord": "^7.18.0",
     "@milkdown/vue": "^7.18.0",
+    "@univerjs/preset-docs-core": "^0.20.0",
+    "@univerjs/preset-sheets-core": "^0.20.0",
+    "@univerjs/presets": "^0.20.0",
+    "@univerjs/slides": "^0.20.0",
+    "@univerjs/slides-ui": "^0.20.0",
     "docx": "^9.6.0",
     "docx-preview": "^0.3.7",
     "docx2pdf-converter": "^2.1.1",
@@ -33,6 +38,7 @@
   },
   "devDependencies": {
     "@vitejs/plugin-vue": "^6.0.1",
+    "@vue/language-server": "^3.2.6",
     "vite": "^7.2.4"
   }
 }