Add an integration test (using the in-process mock-ACP server infrastructure in tests/integration/inprocess/) that replaces the ACP binary with a silent stub (no stdout/stderr output) and asserts that the startup watchdog emits a WARN log within the expected window (acpStartupWatchdogWarnDelay). Acceptance: test exists under tests/integration/inprocess/, passes under 'make test-integration', and fails if the watchdog is disabled.
Add an integration test (using the in-process mock-ACP server infrastructure in tests/integration/inprocess/) that replaces the ACP binary with a silent stub (no stdout/stderr output) and asserts that the startup watchdog emits a WARN log within the expected window (acpStartupWatchdogWarnDelay). Acceptance: test exists under tests/integration/inprocess/, passes under 'make test-integration', and fails if the watchdog is disabled.