Patch axis: extend
Displacement: net-zero; reuses existing plan reference state instead of adding persistence or overwriting approved artifacts
Rule violations averted: no approved-plan overwrite, no transcript format migration, no public CLI/API expansion
PASS/FAIL: PASS after plan-mode focused tests and package check. Note: system-prompt-templates has an unrelated HOME=/tmp path-shortening expectation failure.
- Added plan-mode path resolution that routed bare and cwd-relative PLAN.md targets to the canonical local plan artifact when plan mode was enabled.
- Preserved existing resolution for non-matching basenames and disabled-plan-mode sessions by returning the raw path unchanged.
- Expanded local plan-mode guard tests to cover redirects for PLAN.md and enforcement of non-plan and delete restrictions.
- Updated atom edit prompt guidance to remove obsolete small-drift hash-auto-rebase instructions.
- Renamed the `notes://` protocol to `local://` for better clarity.
- Updated all internal references, prompts, and tool documentation.
- Migrated plan storage paths to use the new `local://` scheme.
metaphorics