v0.4.1

v0.4.1: atomic complete-with-ack + hardened agent protocol

Closes the protocol-layer hole from 0.4.0 where finishing meaningful
work required two calls (tasks/complete + a separate tasks/send for
the ack) and was frequently shortened to just the ack — producing an
unwalkable ledger.

In 0.4.1, tasks/complete accepts postAck/ackName/ackPriority/
ackPayload and writes the state transition and the kind=ack row in
one SQLite transaction with fixed_bug_id auto-injected.

AGENTS.md hardened with "The one rule", "When you start meaningful
work", and every-turn framing so the protocol holds on follow-up
asks, not just the first turn. Validated end-to-end with two real
two-tab dogfood runs.

12 tests including a new protocol-layer two-tab test, fmt + clippy
clean. See README.md and AGENTS.md for the operator and agent
contracts respectively.

v0.4.0

coord 0.4.0

v0.3.1

coord 0.3.1

v0.3.0

coord 0.3.0