Add wiki pages: deployment, templates, attack patterns, research

[north-echo]

Summary

Wiki pages for #383, contributed as a PR since I don't have wiki write access.

• Production Deployment Guide — Rootless Podman, container security hardening, firewall zone isolation, SELinux, audit rules, health monitoring
• Writing Custom Templates — Template structure, realistic device fingerprints, cross-protocol consistency, testing methodology
• Attack Patterns and Analysis — Three-tier traffic model (background noise → protocol scanning → targeted interaction), SSH attack patterns, bot vs. human indicators
• ICS Honeypot Research — Curated papers and related projects
• Home.md / _Sidebar.md — Updated landing page and sidebar integrating new pages with existing content

Pages are in docs/wiki/ — ready to be copied to the wiki directly.

Based on running Conpot in production. See discussion in #383.