test(e2e): add Phase D/E/F specs covering new architecture (54 tests)
Phase D — Settings & Error Handling:
- D1: Settings panel 6-category tabs, search, active highlighting
- D2: Appearance settings (themes, fonts, cursor, scrollback)
- D3: Theme Editor (color pickers, groups, save/cancel)
- D4: Toast notifications, notification center bell/dropdown
- D5: Error states (no loadError warnings, status bar)
Phase E — Agents & Health:
- E1: ProjectBox tab bar (7+ tabs, PERSISTED-LAZY switching)
- E2: Agent session UI (prompt input, context meter, cost)
- E3: Provider configuration (panels, capabilities, toggles)
- E4: Status bar fleet state (counts, cost, attention queue)
- E5: Project health indicators (status dot, CWD, pressure, burn rate)
- E6: Metrics tab (fleet aggregates, health cards, Live/History)
- E7: Conflict detection (no false badges on fresh launch)
- E8: Audit log (manager-only tab, toolbar, entries)
Phase F — Search & LLM Quality:
- F1: Search overlay (Ctrl+Shift+F, input, empty state, close)
- F2: Context tab & anchors (visualization, budget scale)
- F3: SSH tab (connection list, add button)
- F4-F7: LLM-judged quality (settings completeness, theme editor,
error messages, overall UI consistency)
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