docs: Add comprehensive deployment guides for Holly
Created two detailed deployment guides for server-side infrastructure:
1. Server-Side Mod Deployment Guide (976 lines)
- Complete mod installation walkthrough (LuckPerms, FTB suite, WorldEdit, etc.)
- MySQL database setup instructions for Michael
- Per-mod configuration with exact commands
- Version-flexible Discord integration (1.16.5, 1.20.x, 1.21.x)
- Testing checklist and troubleshooting
- Accessibility-focused (Holly can follow step-by-step)
2. Subscription Automation Guide (1000+ lines)
- Michael's pre-setup section (Discord bot deployment)
- Complete Paymenter → Discord → LuckPerms automation
- Discord role configuration
- LuckPerms group creation (all 11 tiers)
- Webhook integration setup
- End-to-end testing procedures
Both guides designed for Holly to implement with Michael handling
backend setup (MySQL, Discord bot, SSL certificates).
Covers: Forge/NeoForge versions, subscriber tier automation,
cross-server permission sync via MySQL, whitelist automation.
Chronicler #40