[RED] Capture failing tests for desktop list/detail route flows

[ksamaschke]

Phase

RED

## Deliverable
Create failing tests that assert each desktop route uses focused desktop workflow patterns instead of dashboard card composition.

## Dependencies
- Parent work item: #217.

• Blocked by Work Item: Replace tab navigation with persistent sidebar routes #215.

• Blocked by Work Item: Move repository and source management into route-based content #216.

  Completion evidence

  • Failing tests describing route-specific list/detail or focused workflow behavior.

• Coverage references for Workspace, Sources, Hooks, and Reports.

  Acceptance criteria

  • Tests fail while the route content still behaves like a dashboard card matrix.

• Expected route interactions are concrete enough for implementation.

  Parent: Work Item: Redesign Workspace, Sources, Hooks, and Reports as desktop list/detail flows #217

[ksamaschke]

Starting RED for #217 in worktree /Users/karsten/Work/Development/intelligentcode-ai/intelligent-code-agents-codex-217-route-flows-20260315082619 on branch codex/217-route-flows-20260315082619.\n\nNext step: add failing installer tests proving Workspace, Sources, Hooks, and Reports use a shared desktop master/detail route shell instead of dashboard-style card or matrix composition.

[ksamaschke]

RED evidence captured from the dedicated worktree branch.\n\nCommands:\n- npm run build:quick\n- node --test dist/tests/installer/desktop-route-flow-red-phase.test.js\n\nFailing assertions:\n1. InstallerDashboard.tsx does not yet define shared desktop-master-detail-shell, desktop-master-detail-list, and desktop-master-detail-detail primitives.\n2. The Workspace route still uses desktop-shell-grid as its primary route body.\n3. The Sources route still uses the bespoke source-route-grid instead of the shared two-pane route shell.\n4. The Hooks route still lacks focused selectedHookId state and still renders a skill-grid card matrix.\n5. The Reports route still lacks focused selectedReportView state and still renders stacked collapsible report cards.