Migration 102 defers the destructive agentLogEntries drop until TaskStore
copies legacy rows to JSONL and writes the __meta guard, then relies on a
second init() pass gated on schemaVersion < SCHEMA_VERSION. Migrations
103-105 bump the version to 105 on the first pass, so the second pass never
fired and the legacy table survived forever. Make the drop version-independent
in migrate() and trigger the re-init whenever the legacy table remains.
Also pin secrets-schema.test.ts to String(SCHEMA_VERSION) instead of the
hardcoded "102" string the schema bump invalidated.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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