Move FastAPI and uvicorn to main dependencies

- Web server is always-running (not optional) for OBS integration
- Users no longer need to manually install fastapi and uvicorn
- Previously required: uv pip install "fastapi[standard]" uvicorn
- Now auto-installed with: uv sync

Fixes: Missing FastAPI/uvicorn dependencies on fresh Windows installs

pyproject.toml

@@ -20,9 +20,16 @@ dependencies = [
     "faster-whisper>=0.10.0",
     "torch>=2.0.0",
     "PySide6>=6.6.0",
+    # Web server (always-running for OBS integration)
+    "fastapi>=0.104.0",
+    "uvicorn>=0.24.0",
+    "websockets>=12.0",
+    # Server sync client
+    "requests>=2.31.0",
 ]
 
 [project.optional-dependencies]
+# Kept for backwards compatibility, but server deps are now in main dependencies
 server = [
     "fastapi>=0.104.0",
     "uvicorn>=0.24.0",