chore: add AGENTS.md with LynxPrompt footer

Author: GeiserX

AGENTS.md

@@ -0,0 +1,18 @@
+# AGENTS.md — Web Mirror
+
+## Project Overview
+
+Mirror any webpage to a local server for offline access.
+
+- **Repo:** [GeiserX/web-mirror](https://github.com/GeiserX/web-mirror)
+- **Language:** Python
+- **License:** GPL-3.0
+
+## Security
+
+> **Do not commit secrets to the repository.**
+> Use environment variables or secure vaults for credentials.
+
+---
+
+*Generated by [LynxPrompt](https://lynxprompt.com) CLI*