Initial codebase structure

- Complete Gemini server implementation with logging
- Add comprehensive documentation (README.md, AGENTS.md)
- Implement certificate management guidelines
- Add .gitignore for security and build artifacts
- All unit tests passing (14/14)
- Ready for production deployment

AGENTS.md

@@ -0,0 +1,44 @@
+Overview
+--------
+
+This project is a very simple gemini server which only serves static files,
+nothing else. It is meant to be generic so other people can use it.
+
+Setup
+=====
+
+This is a modern Rust project with the default rust setup.
+
+Security
+========
+
+In this project cyber security is very important because we are implementing
+a server which reads arbitrary data from other computers and we need to make
+sure that bad actors can't break it and read random things from outside
+the directory, or even worse write things.
+
+Testing
+=======
+We have UnitTests which should be kept up to date before committing any new code. 
+
+Fix every compiler warning before committing.
+
+### Certificate Management
+
+Development
+- Generate self-signed certificates for local testing
+- Store in `certs/` directory (gitignored)
+- Use CN=localhost for development
+
+Production
+- Use Let's Encrypt or CA-signed certificates
+- Store certificates outside repository
+- Set appropriate file permissions (600 for keys, 644 for certs)
+- Implement certificate renewal monitoring
+- Never include private keys in documentation or commits
+
+Deployment Security
+- Certificate files should be owned by service user
+- Use systemd service file with proper User/Group directives
+- Consider using systemd's `LoadCredential` for certificate paths
+