fusion/.changeset/fix-settings-save.md

@gsxdsm/fusion

@gsxdsm/fusion
patch

Fix settings save failure by resolving race condition in parallel task creation and ensuring config row exists in SQLite.

• Fixed race condition in allocateId() where parallel task creation could cause config.json to have stale nextId values by wrapping the config sync in withConfigLock()
• Changed writeConfig() to use INSERT OR REPLACE instead of UPDATE to ensure the config row is created if missing
• Added error handling tests for settings save failures
• Added integration tests for SQLite settings persistence