Local-dev tracing and crash recovery in Vite plugin

Minor Changes

• #14633 3203b5d Thanks @nickpatt! - Add local-dev observability

  wrangler dev and the Vite plugin now capture a trace for every local Worker invocation - spans, logs, and console.* output, including requests that cross worker or Durable Object boundaries.

  You can explore this data two ways:

  • A new Observability tab in the Local Explorer, with a Traces view (recent invocations, an inline timeline waterfall, and filters) and an Events view.
  • A read-only SQL endpoint at /cdn-cgi/explorer/api/local/observability/query, discoverable via the Local Explorer's OpenAPI document, so coding agents and tools can query the same spans and logs tables.

  While this is in testing it's off by default; set X_LOCAL_OBSERVABILITY=true to turn it on. It will be on by default in the public release.

Patch Changes

• #14792 c4bacec Thanks @matthewp! - Recover local development after the Workers runtime crashes

  Previously, an unexpected workerd crash left Miniflare running but unable to serve subsequent requests. Miniflare now restarts workerd after post-startup crashes, while continuing to surface startup crashes as fatal errors.

  The Cloudflare Vite plugin also restarts the Vite development server after workerd recovers so its environments, hot channels, and module runners are recreated.

• Updated dependencies [246ce92, c38a2c3, 8416b33, c079ba3, 4683ff8, 95b026e, 02232f3, c4bacec, f8a8c2c, 3203b5d]:

  • wrangler@4.114.0
  • miniflare@4.20260722.0