Streamed responses no longer buffered by reverse proxies; socket file cleanup fixed

Patch Changes

• fix: add X-Accel-Buffering: no header to text/event-stream responses to prevent reverse proxies such as nginx from buffering streamed responses (#16156)

• fix: delete existing socket file on startup (#15449)

• Updated dependencies [c426c6e, 81f253e, 8d3c865, 6bde3b6, 9161740, 2184960, 5e319b6, e82a0a8]:

  • @sveltejs/kit@2.68.0