What

Restore the OpenClaw runtime dependencies needed for PDF parsing and Playwright-backed browser actions, and document the validation results in the pruning regression spec.

Why

Recent runtime pruning removed packages that OpenClaw still needs for user-visible PDF and browser workflows. URL-based PDF parsing and Playwright interactions now work again after restoring those dependencies, while the remaining Feishu direct-upload PDF problem is tracked separately in #688.

Closes #425
Closes #431
Refs #688

How

• stop pruning pdfjs-dist, @napi-rs, and playwright-core from openclaw-runtime
• update the prune-size comments with fresh measured runtime sizes after the new pruning rules
• update the spec with the successful local validation results and clarify that the remaining direct-upload PDF failure is a Feishu file handoff issue, not a missing parser dependency

Affected areas

• Desktop app (Electron shell)
• Controller (backend / API)
• Web dashboard (React UI)
• OpenClaw runtime
• Skills
• Shared schemas / packages
• Build / CI / Tooling

Checklist

• pnpm typecheck passes
• pnpm lint passes
• pnpm test passes
• pnpm generate-types run (if API routes/schemas changed)
• No credentials or tokens in code or logs
• No any types introduced (use unknown with narrowing)

Notes for reviewers

• Packaging size impact: restores about 75 MB of uncompressed OpenClaw sidecar dependencies (pdfjs-dist ~40 MB, @napi-rs ~25 MB, playwright-core ~10 MB). The refreshed runtime install baseline also dropped about 13 MB, so the expected net packaged size increase is about 64 MB before DMG/ZIP compression.
• pnpm test still has an existing unrelated failure in tests/desktop/skill-dir-watcher-workspace.test.ts (watches workspace directories after start and reconciles removals timed out waiting for watcher state).
• Direct Feishu PDF uploads are still not wired through to the PDF tool path; that follow-up is filed in fix: Feishu PDF uploads are not handed off to the PDF tool #688.