MidnightObjective V2 - Vanguard Edition

The important changes are:

• CRITERIA_UPDATE no longer falls through into the global MidnightObjective refresh pipeline
• During Dungeon/Raid/Delve/Battleground/etc. takeover, Achievement criteria updates are now suppressed completely
• Outdoors, generic criteria events use a short 0.10 sec event-driven debounce
• MidnightObjective compares a fingerprint of only your actually tracked achievements
• If nothing changed, no panel refresh happens
• If a tracked achievement genuinely progresses, Vanguard still refreshes normally
• Tracking-list changes and achievement-earned events still refresh immediately
• No polling loop was added