Move retention constants and math to a focused src/retention.ts module:
- All half-life, reinforcement, dormancy constants
- TYPE_FACTOR, SOURCE_FACTOR, USER_IMPORTANCE_FACTOR
- RETENTION_TYPE_MAX (renamed from TYPE_MAX)
- calculateInitialStrength, calculateEffectiveHalfLife,
calculateRetentionStrength, calculateDormantDays,
calculateEffectiveAgeDays, reinforceMemory
No behavior changes. retention.ts imports only types from types.ts.
Workspace-memory.ts still owns storage, consolidation, and rendering.
- Remove SAFETY_CRITICAL_FACTOR = 6.0 from workspace-memory.ts
- Remove safetyFactor from calculateInitialStrength() - all memories now
fade according to the same rules
- Remove safetyCritical bypass from applyTypeMaxCaps() - safetyCritical
entries compete normally under TYPE_MAX caps
- Preserve safetyCritical?: boolean in LongTermMemoryEntry type for
backward compatibility (no producer sets it to true)
- Update memory-diag to show deprecation warning instead of capacity alert
- Update tests: add backward-compatibility fixture test, deprecation
strength test, normal cap competition test
- Update docs/architecture.md, RELEASE_NOTES.md, CHANGELOG.md,
docs/configuration.md
Phase 1.5 complete: safetyCritical is now a deprecated field with no
active behavior. Safety rules belong in user-controlled agent.md files.
Ralph Chang