- README: add Web UI Dashboard section, update features list with all
current capabilities (multi-channel, media pipeline, sandboxing, etc.),
expand model providers table, update architecture diagram
- CHANGELOG: add P7 entries (dashboard SPA, 4 new gateway handlers)
- state.json: add P7 entry with all 6 phases and file lists, update
overall_progress to reflect P0-P7 completion
- web-ui-dashboard.md: mark as completed with detailed phase outcomes
Document all 6 CLI commands with examples, cron scheduling config
format with field reference, doctor diagnostics output and check
details. Update architecture diagram. Add CHANGELOG covering
Phase 5a and the initial 0.1.0 release.