refactor(rolldown): derive package data from rolldown logs

[webfansplz]

Be related to rolldown/rolldown#9399, Close #160

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Pull request overview

This PR refactors the Rolldown DevTools “Packages” data flow to stop reading node_modules after build and instead derive package metadata directly from Rolldown logs (via the new PackageGraphReady event), improving determinism for post-build analysis.

Changes:

• Switch package collection to use Rolldown’s package graph (PackageGraphReady) and persist it in the log cache.
• Update shared types and UI to use a stable package id, add support messaging when package graph data is unavailable, and surface “unbundled” packages.
• Remove @pnpm/read-project-manifest usage/dependency and bump log cache version.

Reviewed changes

Copilot reviewed 13 out of 15 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
pnpm-workspace.yaml	Removes the pnpm manifest reader catalog entry (no longer needed for package discovery).
packages/rolldown/src/shared/types/data.ts	Adds PackageInfo.id, PackageInfo.isUsed, and introduces PackageMeta return shape.
packages/rolldown/src/node/rpc/functions/rolldown-get-packages.ts	Derives package list from Rolldown package graph logs and returns PackageMeta.
packages/rolldown/src/node/rolldown/log-cache.ts	Bumps cache version and persists packageGraphReady + packages in cached manager snapshots.
packages/rolldown/src/node/rolldown/events-reader.ts	Includes PackageGraphReady in package summary reads.
packages/rolldown/src/node/rolldown/events-manager.ts	Handles PackageGraphReady to populate manager.packages and readiness flag.
packages/rolldown/src/node/rolldown/tests/events-reader.test.ts	Adds coverage asserting PackageGraphReady is read into the manager.
packages/rolldown/src/app/pages/session/[session]/packages.vue	Updates UI to consume PackageMeta, use id for selection, and adds unsupported-build messaging.
packages/rolldown/src/app/pages/compare/[sessions]/index.vue	Adapts compare page to the new PackageMeta RPC response.
packages/rolldown/src/app/components/packages/Table.vue	Uses id as stable key/query param and adds an “Unbundled” badge + empty-size display.
packages/rolldown/src/app/components/packages/Duplicated.vue	Enables “used/unbundled” badge display in duplicated package groups.
packages/rolldown/src/app/components/data/PackageDetailsLoader.vue	Switches details loading to use package id and simplifies name handling.
packages/rolldown/package.json	Removes @pnpm/read-project-manifest and the previous inlined dependency list.
packages/core/src/client/webcomponents/.generated/css.ts	Regenerated CSS output.

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commit: 9ce22a3