[lxsmnsyc]

Fixes #427.

Two fixes to the server-function manifest in dev.

• The manifest no longer waits 1 second before it loads. This affected setups where another plugin runs the SSR environment, such as @cloudflare/vite-plugin. The first call after startup, a restart, or a new "use server" file used to wait that second.
• Deleting a "use server" file no longer breaks the dev server. Before, the manifest kept importing the deleted file, and every request returned 500 until a restart.

Changes

• In dev, virtual:solid-server-function-manifest now returns the current module list right away.
  • Each transform that registers a new server-function module already invalidates the manifest.
  • A function's module is always transformed before it can be called, so the current list is complete when it is needed.
  • Builds keep the debounce. A build has no other signal that all transforms are done.
• In dev, a module is now removed from the manifest when its file is deleted, or when it is transformed again without any server functions.
  • Its client-function records are removed too, and the function id index is rebuilt.
  • The manifest is invalidated the same way as for an added module.
  • Builds are unchanged.

Testing

• Added src/server-functions/manifest.test.ts. It starts a dev server and loads the manifest after each change.
  • Each load must list newly added modules and finish in under 500 ms. Without the fix it fails at about 1016 ms.
  • A deleted module must no longer be imported. Without the fix it is still imported.
  • A module whose "use server" directive is removed must no longer be imported. Without the fix it is still imported.
• Ran the repro from the issue with the same versions (@cloudflare/vite-plugin 1.64.0, wrangler 4.151.0, Vite 8.3.4, Solid 2.0.0-rc.15) in headless Chrome.
  • On 3.0.0-next.50 each manifest load takes about 1001 ms. With the fix each load takes under 1 ms.
  • A "use server" file added while the server runs is callable without a restart.
  • After that file is deleted, the page returns 200 and greet() still works. On 3.0.0-next.50 the page returns 500 with Failed to load url /src/shout.ts ... in virtual:solid-server-function-manifest.
• pnpm test:unit and tsc --noEmit pass.

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Latest commit: e7cc602

The changes in this PR will be included in the next version bump.

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@solidjs/vite-plugin	Patch

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