docs: add AGENTS.md for AI agent guidance (#837)

* feat: add AGENNTS.md

Signed-off-by: Andy Lee <andy.lee@suse.com>

* refactor: update based on copilot feedback

Signed-off-by: Andy Lee <andy.lee@suse.com>

* refactor: update AGENTS.md

Signed-off-by: Andy Lee <andy.lee@suse.com>

* refactor: update based on AI suggestion

Signed-off-by: Andy Lee <andy.lee@suse.com>

* refactor: based on comments

Signed-off-by: Andy Lee <andy.lee@suse.com>

* refactor: some files

Signed-off-by: Andy Lee <andy.lee@suse.com>

* refactor: boundaries.md

Signed-off-by: Andy Lee <andy.lee@suse.com>

---------

Signed-off-by: Andy Lee <andy.lee@suse.com>

docs/agents.md/agents/boundaries.md

@@ -0,0 +1,23 @@
+## Boundaries
+
+- ✅ **Always:**
+  - Write to `.github`, `docs/`,  `pkg/harvester`, `scripts/`.
+  - Make commits in a new branch (for a PR).
+  - Run `yarn lint:fix` before commits.
+    - Use conventional commit format: 
+    ```
+    <type>:
+
+    <description>
+    ```
+  - Follow existing naming conventions (PascalCase for components, camelCase for functions).
+  - After changing a Vue, JS, or TS file, make sure it's automatically formatted with ESLint.
+  - After updating files in `docs/agents.md/`, run `yarn agents:generate` to update root `AGENTS.md`.   
+- ⚠️ **Ask first:**
+  - Adding dependencies
+  - Upgrading dependencies
+- 🚫 **Never:**
+  - Commit or log secrets, `.env`, `kubeconfig` or any API keys.
+  - Edit `node_modules/`.
+  - Commit directly to `main` (use PRs).
+  - Skip git hooks with `--no-verify` flag.