feat: AGT Lite — zero-config governance in 3 lines + fix broken quickstart - #956

🛑 missing gitleaks license. Go grab one at gitleaks.io and store it as a GitHub Secret named GITLEAKS_LICENSE. For more info about the recent breaking update, see [here](https://github.com/gitleaks/gitleaks-action#-announcement).

Node.js 20 actions are deprecated. The following actions are running on Node.js 20 and may not work as expected: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683, gitleaks/gitleaks-action@ff98106e4c7b2bc287b24eaf42907196329070c7. Actions will be forced to run with Node.js 24 by default starting June 2nd, 2026. Node.js 20 will be removed from the runner on September 16th, 2026. Please check if updated versions of these actions are available that support Node.js 24. To opt into Node.js 24 now, set the FORCE_JAVASCRIPT_ACTIONS_TO_NODE24=true environment variable on the runner or in your workflow file. Once Node.js 24 becomes the default, you can temporarily opt out by setting ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION=true. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Review the above matches for potential secret exposure

Potential secrets found matching pattern: AKIA[0-9A-Z]{16}