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feat: variable value history with LRU rotation #26

Merged
xiaomo merged 1 commits from feat/25-variable-history into main 2026-06-01 13:40:52 +00:00
Conversation 1 Commits 1 Files Changed 14
+531 -17

1 Commits

Author SHA1 Message Date
xiaoju d83173107a feat: variable value history with LRU rotation 
- Add variable_history table, MAX_HISTORY=10
- set() tracks history with LRU rotation, idempotent for bootstrap
- New methods: history(), rollback()
- CLI: var history, var rollback commands
- 19 new tests (564 total)

Fixes #25
 2026-06-01 13:33:44 +00:00