fix(core): fail deploy when controllers stay unhealthy

[nickhuo]

Summary

• fail deployment when any controller is still non-healthy at the readiness deadline
• perform one final status read at the deadline so a controller that became healthy on the boundary is accepted
• report every unresolved controller and its final status in one fatal diagnostic
• make verbose deploy output stop and propagate fatal log lines instead of waiting indefinitely

Behavior

This PR is stacked on #170, which makes starting, healthy, and failed trustworthy. It deliberately preserves the existing startup window rather than aborting on the first observed failed: Redis can be reused between deploys, so an early read can see a previous run's status before the new controller publishes its own state.

After the timeout, the Global Controller now performs a final read. If any configured replica is still not healthy, it logs CRITICAL, raises, exits the in-container deploy process non-zero, and never reaches the Global controller started marker that causes the CLI to print Deploy is live.

Verification

• uvx --from uv==0.12.15 uv run --package canyonos-core pytest -q packages/core/tests — 268 passed, 1 skipped, 29 subtests passed
• uvx --from uv==0.12.15 uv run --package canyonos pytest -q packages/cli/tests — 156 passed
• uvx --from uv==0.12.15 uv run ruff check ... — passed
• uvx --from uv==0.12.15 uv run ruff format --check ... — passed
• uvx --from uv==0.12.15 uv run ty check — passed

Depends on #170.

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