feat(skills): implement Assassin Shadow Disciplines tree with 1.13c parity (Milestone M28)
- Implement Claw Mastery scaling (AR, ED, diminishing returns Critical Strike).
- Implement ShadowBuffTracker for Burst of Speed vs Fade mutual cancellation, duration, and Venom coexistence.
- Implement resolveVenomPoisonClamp for strict 10-frame (0.4s) duration clamp and bitrate summing.
- Implement resolveWeaponBlock with dual-claw requirement and 0% block while running.
- Implement Cloak of Shadows defense debuff/buff, duration, and recast lockout.
- Implement Psychic Hammer 50/50 phys/magic damage and target-rank knockback scaling.
- Implement Mind Blast physical damage, 4-yard AOE stun, and conversion chance with boss/unique immunity.
- Implement ShadowMinionManager for PetType limit = 1, mutual replacement, Warrior mirroring, and Master autonomous slvl scaling.
- Add adv-ass-shadow-stress.test.ts verifying all 7 adversarial test categories (21 tests passed).
- All 10 Shadow Disciplines unit tests (#252, #253, #258, #263, #264, #267, #268, #273, #278, #279) and typecheck pass.
troytt
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