Improved code execution verification and raised timeouts for builds, installs, and tests

What Changed

Improved coding-agent verification discipline. Raised code execution timeouts for builds, installs, and tests. Aligned remote exec timeouts with execution timeout groups.

Operator Implication

Code execution operations now have longer timeout windows to complete, reducing premature termination of long-running builds and tests. Verification discipline improvements reduce execution errors.

Receipt

• v1.19 release notes under Coding & Execution: 'Improved coding-agent verification discipline', 'Raised code execution timeouts for builds, installs, and tests',