Ship Initiative MVP Tasks

• Create Item 5 work-item tracking notes.
• Research initiative shape, API, module placement, and first slice.
• Decide where initiative code lives.
• Decide required initiative.yaml metadata.
• Decide no initiative links.yaml in the MVP.
• Decide first coding slice starts with initiative schema/templates before operations.
• Add initiative schema helpers and tests.
• Add default initiative templates.
• Run targeted verification for schema/templates.
• Decide create/list-only operation slice.
• Add create/list mounted initiative operations and tests.
• Run targeted verification for operations.
• Research initiative CLI adapter gaps.
• Decide explicit context-store selection for first CLI slice.
• Document noun-command and manual-completion tradeoffs.
• Add openspec initiative create/list CLI adapter.
• Register static shell completions for initiative commands.
• Add focused CLI tests for create/list, selection errors, and completions.
• Run targeted verification for the initiative CLI adapter.