Git Chat, Session Dashboard, Portal chat, and Hub rollback.

Reverted the hub updates change set, removing added startup config, runtime documentation, OpenAPI, router, and API handler changes while keeping caller-contract coverage aligned.

Expanded Git Chat with repo search and pagination, first-repo default selection, repo visibility and organization icons, stronger selected-repo states, full-width messaging, and mobile-friendly truncation.

Made chat task completion clearer with status-coloring, PR-ready replies, GitHub link treatment, green completed-task states, and social sharing actions.

Reworked Session Dashboard metrics with task mix and PR stats, themed charts, runtime duration, rounded stat formatting, relative update times, and inactive pre-task navigation.

Improved harness handling for previous task-log review, Codex plan messages, prompt fallback, and safer task-description display, with regression coverage across the app and broker paths.

Documented OpenCode support, added its logo asset, and centralized shared auth-gate behavior across Auggie, OpenCode, and PI harnesses.

Retired the local app Releases view and bottom-dock release action after PR availability moved into chat completion flows.

Added BigBrain runtime chat with websocket-backed conversation snapshots, live event merging, approval and run-state handling, usage display, and formatted assistant message rendering.

Added scheduled Hub dispatch controls with future timing, persisted scheduled-message activity, missed or stale schedule recovery, send-now, reschedule, and delete actions.

Cleared dispatch work and schedule inputs after scheduling, added a manual clear action, and expanded Hub dispatch regression tests for the new schedule states.

Updated Hub management and dashboard styling with shared brand CSS, BigBrain API client types, and broader chat view coverage.

Published the May 7 release rollup without changing existing historical release entries.