implementation-planning

Synthesise requirements, codebase analysis, and library research into a concrete implementation plan that splits every acceptance criterion into automated test cases and manual test steps, plus a CI readiness check and a documentation update plan. Runs inline (not as an isolated agent) so it can ask the user directly when the test strategy can't be inferred. Posts the plan to the Task Issue (or creates a standalone Issue) via gh. Use for Phase 6, after Phases 1-5 have completed.