WotLK Patch Progression

Currently, on stock AC, it defaults to 3.3.5a with everything unlocked, including all raid token vendors (emblems of frost, conquest, etc), certain recipes, and drops.

We can create a patch to disable certain things depending on the phase. I recommend following the phase system that WotLK Classic rolled out.

Example:

**Phase 1:**
Arena Season 5
Naxxramas, Eye of Eternity, Obsidian Sanctum only available
Release 5-man dungeons and heroic counterparts only available
Archavon only available
Emblem of Valor and Emblem of Heroism only available
No epic gems
No Shifting Twilight Opal

The issue names no files, tests, or entry points. First map the existing phase and progression implementation, then compare its unlocks with the proposed Phase 1 list. Done requires an agreed phase model and verified restrictions for raids, dungeons, vendors, recipes, drops, gems, and items.

Written by the indexing model from the issue text.