sakthai-learning-curation

Memory is only useful while it stays clean. Curate it as a habit, not a one-off:

• Consolidate related entries (sakthai memory consolidate) so a topic is one good fact, not five fragments.
• Deduplicate (sakthai memory deduplicate) after bursts of capture; prefer updating an existing key over adding a near-twin.
• Forget what's wrong or stale (forget <id>) — an outdated preference is worse than no fact, because it is trusted as authoritative.
• Promote durable observations to facts once they've held up, and let low-confidence observations age out rather than hardening guesses into truth.

Back up before large mutations (sakthai memory backup); the store is the shared seam for every runtime.