[Warlock] Update 12.1.0 Affliction and Destruction effects

[millanzarreta]

This PR includes changes made by Blizzard on the 12.1.0 PTR (as of 2026-07-14) for Affliction and Destruction Warlock:

• The damage of Unstable Affliction (UA) stacks applied by the Affliction 4pc tier set has been fixed. UA stacks applied by Seed of Corruption through the tier set now deal 20% of the regular damage (as expected), while regular stack applications deal 100% damage. There no longer appears to be any weird behavior or special cases.
• The remaining interactions between this tier-applied Unstable Affliction from Seed of Corruption and other talents/effects have been tested in-game, and there do not appear to be any changes.
• The Patient Zero talent has been removed for versions >=12.1.0.
• That talent has been replaced by a new talent called Hedonic Gorging, which is parsed automatically by the passive parse_effects system. A bugged effect has also been found in this new talent: it increases the Siphon Life damage bonus to Corruption/Wither from 30% to 40%, but only for direct damage (effect #­1), but not for periodic damage (effect #­3).
• Unstable Empowerment now also increases the damage of the warlock's pets and guardians.
• The Shadowburn debuff now has its own spell for versions >=12.1.0.
• The Dark Titan's Mark debuff effect from the Destruction tier set now increases the damage of all spells, in practice a long whitelist of spells, as well as the damage of the warlock's pets and guardians.
• The APL has been updated to remove any references to patient_zero in versions >=12.1.0, as they would otherwise cause an error.