Desktop: package, diagnose, and prove the full local workflow

[qwen-code-dev-bot]

Parent

Parent: #105

What to build

Make the macOS desktop workbench ready for repeatable local use: provide a packageable application, a sanitized diagnostics export, keyboard-accessible primary flows, and a stable end-to-end evidence path that covers the main desktop workflow.

Acceptance criteria

• The app has a documented macOS packaging and launch path.
• Diagnostics export session metadata and recent state without raw credentials, account identifiers, or unredacted workspace paths.
• Primary navigation, composer, terminal, and approval interactions are keyboard reachable.
• An end-to-end flow covers launch, session selection, streaming output, terminal continuity, one workflow state, and clean exit.
• The PR includes a head-SHA-bound tmux terminal capture and screenshot for the full flow.

Blocked by

• Desktop: render the live agent workbench #108
• Desktop: inspect approvals and Dynamic Workflow checkpoints #109
• Desktop: integrate safe settings and provider references #110
• Desktop: package, diagnose, and prove the full local workflow #111