docs: add AGENTS.md with git commit guidelines

Add agent guidelines for AI assistants working on this repository:

- Document atomic commit requirements
- Specify conventional commit format with examples
- Require verbose, formatted commit messages
- Emphasize immediate commit/push behavior

🤖 Generated with [Crush](https://github.com/charmassociates/crush)

Assisted-by: GLM-5 via Crush <crush@charm.land>

AGENTS.md

@@ -0,0 +1,45 @@
+# Agent Guidelines
+
+## Git Commit Requirements
+
+When making changes to this repository, ALWAYS:
+
+1. **Commit atomically**: Each logical change should be its own commit
+2. **Use conventional commit format**:
+   - `feat(scope): description` - New feature
+   - `fix(scope): description` - Bug fix
+   - `docs: description` - Documentation changes
+   - `refactor(scope): description` - Code refactoring
+   - `test(scope): description` - Test additions/changes
+   - `chore: description` - Maintenance tasks
+3. **Write verbose, beautifully formatted messages**:
+   - Title line (50 chars max)
+   - Blank line
+   - Body explaining WHAT and WHY (not how)
+   - Reference related files/issues
+   - Include footer with attribution
+
+## Example Commit
+
+```
+feat(security-hardening): implement SCAP-STIG compliance logic
+
+Refactor apply script to implement comprehensive security hardening:
+
+- Add GRUB bootloader permission hardening (root:root, mode 0400)
+- Disable and remove autofs service per STIG requirements
+- Deploy modprobe configurations for kernel module blacklisting
+- Create STIG-compliant network protocol blacklist
+
+This ensures servers meet DoD security requirements for production
+deployment.
+
+🤖 Generated with [Crush](https://github.com/charmassociates/crush)
+
+Assisted-by: GLM-5 via Crush <crush@charm.land>
+```
+
+## Important
+
+**NEVER wait to be asked to commit and push your work.**
+**Commit immediately after each logical unit of work.**