Close Windows sidebar and navigation parity gaps

[coneilen]

Summary

This PR closes the Windows sidebar/navigation behavior gaps called out in the parity ledger and updates investigation/ui-parity-matrix.md with the resulting evidence-based statuses.

Itemized results

1. Nested loop tree — Validated

   • Implemented root-row pointer drag reorder using the existing Sidebar.State.reorderRoots / persisted root records.
   • Applied persisted root ordering to the rendered loop tree.
   • Added a new Windows client wire command, sidebarNodesReordered, and daemon dispatch plumbing so reorder operations are emitted server-side as well.
   • Added focused reorder tests plus a deterministic UIA/live gate assertion that observes the reordered root rows and the emitted daemon command.

2. Recent projects / Add Folder menu — Partial

   • Added File > Add Folder > Recent Folders in the native menu, with a dedicated recent-folder command range and tests.
   • Split sidebar presentation so unopened recents remain distinct from currently open workspaces (project-row-* vs open-project-*).
   • The UIA/live gate verifies the distinct recent/open sidebar presentation and section behavior.
   • Ledger remains Partial because the native submenu structure is covered by focused tests, but there is not yet a live submenu walkthrough in the gate.

3. Needs-you section — Validated

   • Wired the Needs-you Stop action to the existing loop-stop daemon path using the actual attention entry project path + loop id.
   • Added focused routing coverage and a populated UIA/live assertion that proves Stop targets the correct loop.

4. Activity strip — Validated

   • Added the attention-only filter toggle.
   • Implemented real horizontal viewport/scroll state.
   • Wired activity-card navigation into the existing loop/workspace navigation flow.
   • Added focused coverage and UIA/live assertions for scroll-state change, filtering, and navigation to the selected loop.

5. Sidebar error footer — Validated

   • Switched the footer to wrapped multi-line layout for long ingress errors.
   • Added dedicated accessibility/UIA identities and semantics for the footer.
   • Added focused coverage and a UIA/live assertion that verifies the dedicated footer identity and wrapped bounds.

6. Project context menu — Validated

   • Kept Move as a Windows-native Explorer /select handoff rather than expanding scope to a riskier in-app relocation flow.
   • Added live filesystem/shell evidence by logging and asserting the actual Explorer target path in the UIA gate.
   • Updated the ledger row to document this platform decision explicitly.

Validation

• Tools\\windows\\uia-live-gate.ps1 -SidebarParityOnly
• ..\\.graphcode-tools\\zig-0.15.2\\zig.exe test .\\src\\Wire.zig
• ..\\.graphcode-tools\\zig-0.15.2\\zig.exe test .\\src\\WorktreeStatus.zig
• ..\\.graphcode-tools\\zig-0.15.2\\zig.exe test .\\src\\MainWindow.zig

TDD evidence

RED: powershell -NoProfile -ExecutionPolicy Bypass -File .\Tools\windows\uia-live-gate.ps1 -Shell .\pr400-red\graphcode-windows\zig-out\bin\graphcode-windows.exe -Zmx ..graphcode-tools\providers\zmx\zig-out\bin\zmx.exe -SidebarParityOnly -> exit 1: Projects did not expose grouped recent rows
GREEN: powershell -NoProfile -ExecutionPolicy Bypass -File .\Tools\windows\uia-live-gate.ps1 -Shell .\graphcode-windows\zig-out\bin\graphcode-windows.exe -Zmx ..graphcode-tools\providers\zmx\zig-out\bin\zmx.exe -SidebarParityOnly -> exit 0: sidebar parity gate passed
REGRESSION: Push-Location .\graphcode-windows; & '...graphcode-tools\zig-0.15.2\zig.exe' test .\src\Wire.zig; & '...graphcode-tools\zig-0.15.2\zig.exe' test .\src\WorktreeStatus.zig; & '...graphcode-tools\zig-0.15.2\zig.exe' test .\src\MainWindow.zig; Pop-Location -> exit 0: All 56 Wire, 9 WorktreeStatus, and 3 MainWindow tests passed

Protocol note

This PR adds the Windows-side sidebarNodesReordered graph command for sidebar root ordering. If the daemon/service does not already handle that command, a matching server-side handler may still be needed in the corresponding daemon repo/service for full end-to-end persistence outside the local Windows shell state.