Subrouter v0.1.128

Attribution\n\nThis release includes Daniel Raffel's provider and routing integration from PR279, including the stacked work in PR234, PR236, PR238, PR241, PR242, PR250, PR251, PR252, PR253, PR267, PR274, plus the already merged PR229 and PR231.\n\nDaniel Raffel's original commits remain unchanged with their original author metadata. PR282 contains separate maintainer deployment hardening.\n\n## Changes\n\n- Retry transient startup usage-score failures on a cancellable interval.\n- Isolate macOS functional-canary process groups and verify process identity during cleanup.\n- Use dynamic Docker smoke-test ports and the standalone team test configuration.\n- Repair ownership and mode on existing deployment state, home, and log directories.\n- Clean stale legacy control sockets only after process identity checks.\n- Measure golden process continuity from completed observations to avoid false gaps under host load.\n\n## Verification\n\n- Hosted build, vet, test, Docker, socket, and macOS transaction checks passed.\n- Exact-head local structured review found no actionable findings.\n