Service auto-detection migrates to V2; WebSocket support for WSGI apps

Minor Changes

• 4f8b5b1: - Migrate service auto-detection to V2 format.
  • Layout auto-detect now resolves via the V2 resolver and generates top-level service-targeted rewrites and per-service path transform routes.
  • CLI build and dev server merge auto-detected rewrites into the route table.

Patch Changes

• 50276e7: Show the flags command in the top-level CLI help output.
• 6881d74: Use Node.js native fetch for the CLI API client, removing legacy URL parser deprecation warnings from standalone binaries while preserving proxy routing and local middleware behavior.
• 6514009: Fix CLI update notification showing a stale or incorrect version number. The update prompt now performs a fresh registry lookup before displaying the target version, and the upgrade success message reports the actually installed version instead of the prompted version.
• 69f15ee: vercel flags ls now uses the v2 flag list endpoint and supports filtering by --tag, --created-by, and --maintainer-id, plus cursor pagination via --limit (page size) and --next (resume cursor).
• c1641e4: Update integration error and warning hints to suggest the canonical vercel integration resource form instead of the legacy vercel integration-resource alias
• ee389a1: Support WebSockets for WSGI apps (e.g. Flask via flask-sock). The runtime now exposes the raw connection socket in the WSGI environ as werkzeug.socket / gunicorn.socket for WebSocket upgrade requests, and ends the request lifecycle once the 101 handshake is written so the platform can begin bidirectional streaming — matching the ASGI websocket.accept behavior.
• 62a884e: Simplify isolated services and experimentalServicesV2 runtime outputs by emitting their function at index instead of _svc/<service-name>/index.
• Updated dependencies [66be3e0]
• Updated dependencies [62a884e]
  • @vercel/container@0.0.3
  • @vercel/backends@0.8.19
  • @vercel/go@3.10.2
  • @vercel/python@6.47.3
  • @vercel/static-build@2.11.3
  • @vercel/express@0.1.110
  • @vercel/node@5.8.21