fix: Improve Whisper server startup with async polling and reduce logs

- Make server startup async to avoid Bun's 10s timeout
- Add frontend polling to detect when server is ready
- Use PowerShell Get-NetTCPConnection for reliable port detection
- Add starting state to prevent multiple simultaneous starts
- Reduce verbose logging, keep only essential info
- Add dev-dist and nul to gitignore

.claude/settings.local.json

@@ -50,7 +50,9 @@
       "mcp__agent-ui__localhost_4100-notificar",
       "mcp__agent-ui__localhost_4100-enviar_al_panel",
       "mcp__agent-ui__localhost_4100-render_html",
-      "mcp__agent-ui__localhost_4100-load_vue_component"
+      "mcp__agent-ui__localhost_4100-load_vue_component",
+      "mcp__agent-ui__localhost_4100-page_refresh",
+      "WebFetch(domain:docs.anthropic.com)"
     ]
   },
   "enableAllProjectMcpServers": true,