chore(deps): vite-plus sync

.github/workflows/lint.yml

@@ -39,3 +39,34 @@
 
       - name: GitHub Actions linter
         uses: docker://rhysd/actionlint:1.7.12@sha256:b1934ee5f1c509618f2508e6eb47ee0d3520686341fec936f3b79331f9315667
+
+  vite-toolchain-drift:
+    name: Check vite-plus/vite/vitest drift [vp migrate]
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+
+      - name: Setup Node.js
+        uses: ./.github/actions/setup-node
+
+      # Fails if vite-plus, vite, vitest, or the @vitest/* family have drifted
+      # out of the alignment vp migrate expects (e.g. a raw version pin
+      # instead of a catalog: reference, or a version vite-plus does not
+      # bundle). Complements the Renovate `vite monorepo` packageRules group,
+      # which prevents a *Renovate* PR from splitting these updates, by also
+      # catching drift introduced by a manual edit. See
+      # openspec/changes/fix-vite-plus-dependency-drift.
+      - name: Run vp migrate and check for drift
+        run: |
+          pnpm exec vp migrate --no-interactive
+          if ! git diff --quiet; then
+            echo "::error::vp migrate produced changes. This means vite-plus, vite, vitest, or the @vitest/* family have drifted out of alignment. Run 'pnpm exec vp migrate' locally and commit the result."
+            git diff
+            exit 1
+          fi

.github/workflows/renovate-vite-migrate.yml

@@ -0,0 +1,60 @@
+name: Renovate vite toolchain reconcile
+
+# Runs `vp migrate` against Renovate's grouped vite-plus/vite/vitest PR branch
+# and pushes back any reconciliation it makes (catalog/override alignment),
+# so the versions vite-plus bundles internally and the versions this project
+# depends on directly can never land out of sync. See
+# openspec/changes/fix-vite-plus-dependency-drift for the incident history
+# and rationale.
+#
+# Triggered on file changes rather than branch name, since Renovate's grouped
+# branch/slug naming for the "vite monorepo" packageRules group has not been
+# empirically confirmed yet (see design.md open questions).
+on:
+  pull_request:
+    types: [opened, synchronize]
+    paths:
+      - package.json
+      - pnpm-lock.yaml
+      - pnpm-workspace.yaml
+
+permissions: {}
+
+jobs:
+  vp-migrate:
+    name: Reconcile vite-plus/vite/vitest versions
+    runs-on: ubuntu-latest
+    # Only Renovate's own branches: this workflow pushes commits back onto
+    # the PR branch, which would be surprising (and is unnecessary) on a
+    # human-authored PR.
+    if: github.event.pull_request.user.login == 'renovate[bot]'
+    permissions:
+      contents: write
+
+    steps:
+      - name: Checkout PR head
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          ref: ${{ github.event.pull_request.head.ref }}
+          persist-credentials: true
+
+      - name: Setup Node.js
+        uses: ./.github/actions/setup-node
+
+      - name: Run vp migrate
+        run: pnpm exec vp migrate --no-interactive
+
+      - name: Commit and push reconciliation, if any
+        env:
+          GIT_AUTHOR_NAME: github-actions[bot]
+          GIT_AUTHOR_EMAIL: 41898282+github-actions[bot]@users.noreply.github.com
+          GIT_COMMITTER_NAME: github-actions[bot]
+          GIT_COMMITTER_EMAIL: 41898282+github-actions[bot]@users.noreply.github.com
+        run: |
+          if git diff --quiet; then
+            echo "vp migrate produced no changes; nothing to commit."
+            exit 0
+          fi
+          git add -A
+          git commit -m "chore(deps): reconcile vite-plus/vite/vitest versions via vp migrate"
+          git push origin "HEAD:${{ github.event.pull_request.head.ref }}"

CONTRIBUTING.md

@@ -39,6 +39,9 @@ pnpm dev
 
 Tooling is unified through [Vite+][vite-plus-website], which bundles the linter (oxlint), formatter (oxfmt), test runner (Vitest), and dev/build pipeline (Vite).
 
+> [!IMPORTANT]
+> `vite-plus`, `vite`, `vitest`, and the `@vitest/*` family are version-coupled: `vite-plus` bundles/targets a specific `vite`/`vitest` release internally, and this project depends on the same real packages directly. Bumping one side independently has broken the test suite before by loading two different `vitest` copies into the test workers. Renovate groups these packages into a single PR, and CI (`vp migrate --no-interactive`, currently advisory) fails if they drift apart — but if you ever bump one of these packages by hand, always run `pnpm exec vp migrate` afterward and let it manage `package.json`/`pnpm-workspace.yaml` (catalog references), rather than pinning a raw version yourself. See `openspec/changes/fix-vite-plus-dependency-drift` for the incident history.
+
 ```shell
 # Run lint, format, and type checks
 pnpm check

package.json

@@ -109,8 +109,8 @@
     "@types/react-router-dom": "5.3.3",
     "@types/semver": "7.8.0",
     "@vitejs/plugin-react": "6.1.0",
-    "@vitest/browser-playwright": "4.1.10",
-    "@vitest/coverage-v8": "4.1.10",
+    "@vitest/browser-playwright": "catalog:",
+    "@vitest/coverage-v8": "catalog:",
     "clsx": "2.1.1",
     "concurrently": "10.0.5",
     "date-fns": "4.4.0",
@@ -128,10 +128,11 @@
     "tailwind-merge": "3.6.0",
     "tailwindcss": "4.3.3",
     "typescript": "7.0.2",
-    "vite": "8.2.2",
+    "vite": "catalog:",
     "vite-plugin-checker": "0.14.5",
     "vite-plugin-electron": "1.1.1",
-    "vite-plus": "0.2.9",
+    "vite-plus": "catalog:",
+    "vitest": "catalog:",
     "zustand": "5.0.15"
   },
   "engines": {