Show duration in quiet mode, add format/lint caching, and fix deploy prompt

[tjementum]

Summary & Motivation

Show command duration in --quiet mode output for build, format, lint, and e2e commands. Previously quiet mode suppressed all timing information, making it hard to spot slow runs in agent workflows.

• Add source state caching to format and lint commands so redundant runs are skipped when no code has changed since the last successful run. This avoids the engineer, reviewer, and guardian all paying the cost of the slow backend format and lint.
• Update the deploy command confirmation prompt to list all three disabled workflows (Deploy Container, Deploy Infrastructure, and Migrate Database) instead of only two.

Checklist

• I have added tests, or done manual regression tests
• I have updated the documentation, if necessary

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud