feat: Add Whisper GPU speech-to-text with progressive transcription

- Add faster-whisper Python server for GPU-accelerated transcription
- Support dual mode: Web Speech API or Whisper GPU (toggleable)
- Progressive transcription every 3 seconds while recording
- Separate terminal server process (stable during hot-reload)
- Add Ctrl+V paste and Ctrl+C copy support in FloatingTerminal
- Add MCP tools: whisper_start, whisper_stop, whisper_toggle, whisper_status
- Update package.json with separate api/terminal/frontend processes

server/routes/index.ts

@@ -7,6 +7,7 @@ import { handleThemes, handleActiveTheme, handleDesignTokens, handleThemeById, h
 import { handleCanvas, handleCanvasById, handleToolbarCanvas, handleDefaultCanvas, handleCanvasComponents, handleCanvasComponentById } from './canvas'
 import { handleGiteaRepo, handleGiteaTree, handleGiteaFile } from './gitea'
 import { handleTables, handleStats, handleTableSchema, handleTableData, handleQuery } from './database'
+import { handleWhisperRoutes } from './whisper'
 
 export async function handleRequest(req: Request): Promise<Response> {
   const url = new URL(req.url)
@@ -168,5 +169,11 @@ export async function handleRequest(req: Request): Promise<Response> {
     return handleQuery(req)
   }
 
+  // Whisper (GPU speech-to-text)
+  if (path.startsWith('/api/whisper/')) {
+    const res = await handleWhisperRoutes(req)
+    if (res) return res
+  }
+
   return notFoundResponse()
 }