sync local pi changes

.pi/reviews/context-manager-task5-legacy-fix-report.md

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+# Context Manager Task 5 Legacy Fix Report
+
+## Status
+- DONE
+
+## Changes
+- Updated `.pi/agent/extensions/context-manager/src/runtime.ts` so `syncSnapshotZone()` no longer preserves a stored legacy `lastZone` when `lastObservedTokens` is missing.
+- Legacy snapshots without token observations now normalize back to `lastZone: "green"`, which matches the runtime's safe default when pressure cannot be recomputed.
+- Added regression coverage in `.pi/agent/extensions/context-manager/src/runtime.test.ts` for both direct restore of a legacy snapshot and the real persisted path of `deserializeLatestSnapshot(...)` followed by `runtime.restore(...)`.
+- Left new-schema snapshot behavior unchanged: snapshots that include `lastObservedTokens` still recompute `lastZone` against the receiving runtime policy.
+
+## Tests
+- `cd .pi/agent/extensions/context-manager && npx tsx --test src/runtime.test.ts` → 6 passed, 0 failed
+- `cd .pi/agent/extensions/context-manager && npx tsx --test src/runtime.test.ts src/persist.test.ts src/summaries.test.ts` → 11 passed, 0 failed
+- `cd .pi/agent/extensions/context-manager && npm test` → 35 passed, 0 failed
+
+## Files Changed
+- `.pi/agent/extensions/context-manager/src/runtime.ts`
+- `.pi/agent/extensions/context-manager/src/runtime.test.ts`
+- `.pi/reviews/context-manager-task5-legacy-fix-report.md`
+
+## Self-Review Findings
+- The fix is narrowly scoped to restore/policy resync behavior for snapshots missing `lastObservedTokens`.
+- The public API stays the same.
+- New-schema snapshots keep the existing recompute behavior.
+- Legacy snapshots no longer carry a stale red/yellow/compact zone into a runtime that lacks the data needed to validate it.
+
+## Concerns
+- None.