[codex] Fix dev stack startup cleanup

[Joncallim]

Summary

• replace the macOS-incompatible dev stack cleanup path with process-tree cleanup that works on Bash 3.2
• pin the web dev server to port 3233 with strict port handling
• make fixture startup cleanup handle interrupts and show/save daemon build output
• disable Cargo incremental compilation for startup-oriented daemon builds so corrupt incremental state does not block the testbed

Validation

• bash -n scripts/run-dev-stack.sh scripts/dockermap-fixture-up.sh scripts/dockermap-fixture-down.sh
• scripts/dockermap-fixture-up.sh --verify
• ./scripts/run-dev-stack.sh
• curl -fsS http://127.0.0.1:4100/daemon/health
• curl -fsS http://127.0.0.1:4000/api/health
• Ctrl-C cleanup checked for dev stack; no remaining DockerMap listeners or processes

Notes

• restored unrelated package-lock.json churn from npm install before committing
• fixture created during verification was torn down successfully

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Tear down the stack on strict-port failure

When port 3233 is already occupied, Vite's --strictPort exits immediately, but this script still reaches the final no-argument wait; help wait says that form waits for all children and returns zero, so the daemon/API keep running and the dev-stack command hangs instead of reporting the web startup failure and cleaning up. Please supervise child exits here (for example, wait for any tracked PID to fail and then run cleanup) so strict-port startup errors actually stop the stack.

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