- Session metadata now stores on-disk size bytes, populated from file stats when collecting sessions.
- The session selector metadata line now renders file size using formatBytes instead of message counts.
- Session test fixtures were updated with the new size property so they match the revised SessionInfo shape.
- Added canonical model equivalence types, cache helpers, and registry APIs for provider variant lookup.
- Changed model resolution to apply canonical ID overrides/excludes with provider order before fallback matching.
- Added canonical and provider model views in list-models and selector UI with canonical sorting/persistence.
- Updated role/model persistence to store selectors while runtime now resolves concrete canonical-backed provider models.
- Added git branch isolation for autoresearch sessions with automatic branch creation, reuse, and worktree safety checks.
- Added scope definition sections (Files in Scope, Off Limits, Constraints) to autoresearch template for explicit session boundaries.
- Added keybinding matcher utilities for consistent escape/cancel key handling across interactive components.
- Added ASI metadata validation (hypothesis and rollback context) in log_experiment tool for experiment tracking.
- Refactored keybinding logic across 13 components to use centralized matcher functions instead of inline key checks.
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