Dispose 13 dormant e2e suites: wire 8, retire 2, keep 3 (#2824)

packages/app/package.json

@@ -26,7 +26,7 @@
     "measure:fuzz": "bash scripts/measure-fuzz.sh",
     "measure:stress": "bash scripts/measure-stress.sh",
     "perf:compare": "bash scripts/perf-compare.sh",
-    "test:e2e": "playwright test tests/stress/ux-interactions.e2e.ts tests/stress/file-tree-create.e2e.ts tests/stress/file-tree-drag-to-root.e2e.ts tests/stress/file-tree-deselect-to-root.e2e.ts tests/stress/create-then-rename-editable.e2e.ts tests/stress/find-replace.e2e.ts tests/stress/editor-tabs.e2e.ts tests/stress/crdt-stress.e2e.ts tests/stress/slash-command.e2e.ts tests/stress/paste-fidelity.e2e.ts tests/stress/fr-7a-disconnect-source-mode.e2e.ts tests/stress/docs-open.e2e.ts tests/stress/frozen-table-headers.e2e.ts tests/stress/asset-embed.e2e.ts tests/stress/asset-embed-advanced.e2e.ts tests/stress/asset-click-dispatch.e2e.ts tests/stress/handoff.e2e.ts tests/stress/multi-agent-presence.e2e.ts tests/stress/editor-mode-persistence.e2e.ts tests/stress/lint-config-toggle.e2e.ts tests/stress/sidebar-search-pill.e2e.ts tests/stress/command-palette-semantic.e2e.ts tests/stress/agent-activity-panel.e2e.ts tests/stress/drop-pipeline-auto-open.e2e.ts tests/stress/command-palette-flicker.e2e.ts tests/stress/cm6-list-hanging-indent.e2e.ts tests/stress/ng7-rapid-nav-coherence.e2e.ts tests/stress/reveal-on-activate.e2e.ts tests/stress/selection-indicator.e2e.ts tests/stress/new-file-cross-doc-bleed.e2e.ts tests/stress/editor-mode-flip-cross-doc-bleed.e2e.ts tests/stress/editor-area-viewport-resize.e2e.ts tests/stress/qa-sidebar-responsive.e2e.ts tests/stress/prd-6955-reassertion-repro.e2e.ts tests/stress/prd-6955-reassertion-wedge.e2e.ts tests/stress/prd-6914-repro.e2e.ts tests/stress/showall-lazy-tree.e2e.ts tests/stress/tabs-component-strip.e2e.ts tests/stress/source-find-scroll.e2e.ts tests/stress/harness-app-warmth.e2e.ts tests/stress/qa-canary-authoring-both-modes.e2e.ts tests/stress/qa-canary-live-typing.e2e.ts tests/stress/keystroke-cadence-danger-space.e2e.ts tests/stress/jsx-unregistered-backspace-delete.e2e.ts tests/stress/jsx-unregistered-ime-concurrent.e2e.ts tests/stress/jsx-backspace-delete.e2e.ts tests/stress/link-authoring-bytes.e2e.ts tests/stress/link-authoring-apex.e2e.ts tests/stress/command-palette-parity.e2e.ts tests/stress/settings-search.e2e.ts tests/stress/chip-popover-positioning.e2e.ts tests/stress/docs-open-scroll-restore.e2e.ts tests/stress/file-tree-decoration-chip-strip-repro.e2e.ts tests/stress/grip-click-nodeselect.e2e.ts tests/stress/jsx-halo-semantics.e2e.ts tests/stress/jsx-image-body-click.e2e.ts tests/stress/jsx-prop-panel-placeholder.e2e.ts tests/stress/jsx-range-encompass-halo.e2e.ts tests/stress/jsx-wildcard-convert.e2e.ts tests/stress/markdown-lint.e2e.ts tests/stress/mid-type-recovery.e2e.ts tests/stress/observer-a-multi-client.e2e.ts tests/stress/outline-toolbar-occlusion.e2e.ts tests/stress/quiet-tree-hidden-doc.e2e.ts tests/stress/raw-mdx-fallback-onblur-upgrade.e2e.ts tests/stress/rename-noext-probe.e2e.ts tests/stress/show-ok-folders.e2e.ts tests/stress/source-polish.e2e.ts tests/stress/warm-skeleton-scroll-restore.e2e.ts tests/stress/yjs-no-dual-import.e2e.ts",
+    "test:e2e": "playwright test tests/stress/ux-interactions.e2e.ts tests/stress/file-tree-create.e2e.ts tests/stress/file-tree-drag-to-root.e2e.ts tests/stress/file-tree-deselect-to-root.e2e.ts tests/stress/create-then-rename-editable.e2e.ts tests/stress/find-replace.e2e.ts tests/stress/editor-tabs.e2e.ts tests/stress/crdt-stress.e2e.ts tests/stress/slash-command.e2e.ts tests/stress/paste-fidelity.e2e.ts tests/stress/fr-7a-disconnect-source-mode.e2e.ts tests/stress/docs-open.e2e.ts tests/stress/frozen-table-headers.e2e.ts tests/stress/asset-embed.e2e.ts tests/stress/asset-embed-advanced.e2e.ts tests/stress/asset-click-dispatch.e2e.ts tests/stress/handoff.e2e.ts tests/stress/multi-agent-presence.e2e.ts tests/stress/editor-mode-persistence.e2e.ts tests/stress/lint-config-toggle.e2e.ts tests/stress/sidebar-search-pill.e2e.ts tests/stress/command-palette-semantic.e2e.ts tests/stress/agent-activity-panel.e2e.ts tests/stress/drop-pipeline-auto-open.e2e.ts tests/stress/command-palette-flicker.e2e.ts tests/stress/cm6-list-hanging-indent.e2e.ts tests/stress/ng7-rapid-nav-coherence.e2e.ts tests/stress/reveal-on-activate.e2e.ts tests/stress/selection-indicator.e2e.ts tests/stress/new-file-cross-doc-bleed.e2e.ts tests/stress/editor-mode-flip-cross-doc-bleed.e2e.ts tests/stress/editor-area-viewport-resize.e2e.ts tests/stress/qa-sidebar-responsive.e2e.ts tests/stress/prd-6955-reassertion-repro.e2e.ts tests/stress/prd-6955-reassertion-wedge.e2e.ts tests/stress/prd-6914-repro.e2e.ts tests/stress/showall-lazy-tree.e2e.ts tests/stress/tabs-component-strip.e2e.ts tests/stress/source-find-scroll.e2e.ts tests/stress/harness-app-warmth.e2e.ts tests/stress/qa-canary-authoring-both-modes.e2e.ts tests/stress/qa-canary-live-typing.e2e.ts tests/stress/keystroke-cadence-danger-space.e2e.ts tests/stress/jsx-unregistered-backspace-delete.e2e.ts tests/stress/jsx-unregistered-ime-concurrent.e2e.ts tests/stress/jsx-backspace-delete.e2e.ts tests/stress/link-authoring-bytes.e2e.ts tests/stress/link-authoring-apex.e2e.ts tests/stress/command-palette-parity.e2e.ts tests/stress/settings-search.e2e.ts tests/stress/chip-popover-positioning.e2e.ts tests/stress/docs-open-scroll-restore.e2e.ts tests/stress/file-tree-decoration-chip-strip-repro.e2e.ts tests/stress/grip-click-nodeselect.e2e.ts tests/stress/jsx-halo-semantics.e2e.ts tests/stress/jsx-image-body-click.e2e.ts tests/stress/jsx-prop-panel-placeholder.e2e.ts tests/stress/jsx-range-encompass-halo.e2e.ts tests/stress/jsx-wildcard-convert.e2e.ts tests/stress/markdown-lint.e2e.ts tests/stress/mid-type-recovery.e2e.ts tests/stress/observer-a-multi-client.e2e.ts tests/stress/outline-toolbar-occlusion.e2e.ts tests/stress/quiet-tree-hidden-doc.e2e.ts tests/stress/raw-mdx-fallback-onblur-upgrade.e2e.ts tests/stress/rename-noext-probe.e2e.ts tests/stress/show-ok-folders.e2e.ts tests/stress/source-polish.e2e.ts tests/stress/warm-skeleton-scroll-restore.e2e.ts tests/stress/yjs-no-dual-import.e2e.ts tests/stress/slash-command-auto-open.e2e.ts tests/stress/graph-panel-surfaces.e2e.ts tests/stress/clipboard-relative-url-source-fallback.e2e.ts tests/stress/asset-embed-real-fidelity.e2e.ts tests/stress/prop-upload.e2e.ts tests/stress/rename-content-preservation.e2e.ts tests/stress/rename-consolidation.e2e.ts tests/stress/outline-navigation.e2e.ts",
     "test:e2e:install-browsers": "playwright install chromium webkit firefox",
     "test:visual": "playwright test --config playwright.visual.config.ts",
     "test:visual:update": "playwright test --config playwright.visual.config.ts --update-snapshots",

packages/app/src/components/TimelinePanel.dom.test.tsx

@@ -4,17 +4,21 @@
  * Pins two user-visible contracts from the "timeline shows only auto-commits"
  * change: (1) checkpoint rows are filtered out of the panel — they are
  * background-cleanup artifacts now, not user history; and (2) there is no
- * Save Version control in the panel header. The expand/diff/restore flow is
- * exercised by the Playwright suite (timeline-diff-sidepane.e2e.ts); this
- * mount test locks the filtering + header contract without a browser (and
- * without a shadow repo, which the e2e fixture requires).
+ * Save Version control in the panel header. This mount test locks the
+ * filtering + header contract without a browser (and without a shadow repo).
+ * The diff/restore flow (redesigned into the TimelineDiffPane overlay in #2607)
+ * has no browser-tier coverage yet.
  *
- * Invocation: `bun run test:dom` from `packages/app/`.
+ * Invocation: `pnpm run test:dom` from `packages/app/`.
  */
-import { afterEach, beforeEach, describe, expect, mock, test } from 'bun:test';
+
 import { cleanup, render, screen, waitFor } from '@testing-library/react';
+import { afterEach, beforeEach, describe, expect, test, vi } from 'vitest';
 
-mock.module('next-themes', () => ({
+// `vi.mock` is hoisted above every import, so `next-themes` resolves to this
+// stub before the SUT (imported dynamically below) pulls in its transitive
+// `useTheme`.
+vi.mock('next-themes', () => ({
   useTheme: () => ({ resolvedTheme: 'light' }),
 }));
 
@@ -76,7 +80,7 @@ afterEach(() => {
 });
 
 function mockHistory(entries: TimelineEntry[]) {
-  globalThis.fetch = mock((input: RequestInfo | URL) => {
+  globalThis.fetch = vi.fn((input: RequestInfo | URL) => {
     const url = typeof input === 'string' ? input : input.toString();
     if (url.includes('/api/history')) {
       return Promise.resolve(