Development record

The design-target callout at .abcd/development/brief/04-surfaces/08-abcd.md:480-482 says the shipped status path reads .git, .abcd/development and the three work tiers 'and nothing else: ... no linked intents, no spec store, and no thresholds'. The shipped board the same chapter documents (lines 153-342) also reads the mode state, peers, the inbox, oracle routing, the reviews block with its twenty-commit threshold (internal/core/reviews StaleAfter = 20) and the planned intents with their specs (internal/core/statusblock).