NextUpgrade 0.4.2 rev6 - Static QA

Exact Blizzard upgrade-track API: integrated
Fallback ilvl inference: retained only when API data unavailable
Character high-watermark API: integrated
Free-next-upgrade detection: integrated
Paid 1/6 -> 2/6 efficiency warning: integrated
Replacement-risk model: integrated
Tier/BiS/weapon spend exceptions: integrated
Summary free-upgrade action: integrated
Summary save-crests action: integrated
Protected C_ItemUpgrade.UpgradeItem call: NOT USED

Remaining referenceOnly itemIDs: 25
Missing enUS static keys: 0
Forbidden mass Encounter Journal calls: 0
