[johnnyhuy]

Summary

Implement the Pidex Figma Workbench screens for new sessions, active conversations, Git changes, session history, and models/access. The shell uses the design's local icons and fonts, with workspace navigation, a command palette, file previews, and installed skills.

• Connect session resume, streaming, stop/steer, fork, model selection, per-session drafts, rejected-prompt recovery, and Markdown export to the Pi RPC bridge.
• Show real Git patches with file staging/unstaging and commits; validate workspace and archive paths before reading files.
• Save workspace model/reasoning defaults and the device's reduced-motion preference. Runtime permissions and automatic worktrees remain explicitly unavailable.
• Add unit and React component coverage for discovery, archives, previews, settings, composing, and keyboard navigation. Skip broken skill links without hiding sibling skills.
• Run Electron UI tests using temporary Git workspaces, sessions, settings, and a deterministic Pi RPC fixture. The suite builds its own main/preload and starts its own renderer on a free port; PR CI needs no provider credentials and uploads screenshots and a Playwright trace.

Validation

• mise run build: lint, typecheck, 51 unit tests, 22 component tests, production bundle.
• mise run test:e2e: 10 Electron UI tests, covering all five screens, saved-session resume/fork, streaming/stop, real Git staging, persisted defaults, file/skill navigation, rejected prompts, the empty workspace picker, and minimum window dimensions.
• Rechecked lint/typecheck after adding E2E diagnostics; git diff --cached --check passes.

Consequences

No migration or new runtime dependency. E2E tests exercise the actual Electron/main/preload/renderer stack with a mock Pi peer; live provider authentication and model responses are outside this suite. File previews are read-only and limited to text files up to 1 MB. Hunk-level Git actions, runtime-policy editing, and automatic worktree creation are not included.