perf: cache workspace typechecks with Vite Task

[wan9chi]

What does this PR do?

Caches package typechecks through Vite Task content tracking and adds the project-local Vite+ 0.2.2 dependency. This fork-local PR exists to measure CI behavior and is not intended for the official repository.

Closes # N/A

Type of change

• Bug fix
• Feature (requires maintainer-approved Discussion)
• Refactor (no behavior change)
• Translation
• Documentation
• Performance improvement
• Tests
• Chore (dependencies, CI, tooling)

Checklist

• I have read CONTRIBUTING.md
• pnpm typecheck passes
• pnpm lint passes
• pnpm test passes (or targeted tests for my change) — N/A: private-workspace tooling only
• pnpm format has been run
• I have added/updated tests for my changes (if applicable) — N/A: command-only change
• User-visible strings in the admin UI are wrapped for translation (if applicable) — N/A: no UI changes
• I have added a changeset (if this PR changes a published package) — N/A: private root workspace only
• New features link to an approved Discussion — N/A: no feature

AI-generated code disclosure

• This PR includes AI-generated code — model/tool: OpenAI GPT-5.6 via OpenCode

Screenshots / test output

• vp run -w typecheck: 27/27 cache hits on a warm local run, about 10.15s reported saved
• vp run -w lint
• vp run -w format:check
• pnpm install --frozen-lockfile

[github-actions]

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[github-actions]

Scope check

This PR changes 1,142 lines across 2 files. Large PRs are harder to review and more likely to be closed without review.

If this scope is intentional, no action needed. A maintainer will review it. If not, please consider splitting this into smaller PRs.

See CONTRIBUTING.md for contribution guidelines.

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Require a Node version supported by Vite+

This new typecheck script now invokes vp, but the workspace still advertises engines.node: ">=22" while vite-plus@0.2.2 in the lockfile requires ^20.19.0 || ^22.18.0 || >=24.11.0 (pnpm-lock.yaml:11874-11876). A contributor or CI image pinned to Node 22.0–22.17 satisfies this repo's engine range but is outside the supported runtime for the tool that now runs every package typecheck, so the advertised setup can no longer run pnpm typecheck; either keep the old runner or raise the workspace engine to match Vite+.

Useful? React with 👍 / 👎.