fix: 修复洛洛 S2 越界续锁与旧弹倍率干扰；Golden 因独立浮游/本体攻击更新 roster-004、roster-005、bond-victoriaShip-low、bond-victoriaShip-high、coop3-ABYSS-5、coop4-FUNNY-6、coop4-ABYSS-7、coop2-NORMAL-8-serverrun、coop2-NORMAL-1-coverage-standins

docs/history/0.2.4.md

@@ -274,3 +274,27 @@ enemy: picking emitted a unit click with no definition, instead of the tile clic
 engine-canvas regression retains the card/100 HP assertions and also covers another field refresh, live HP loss and
 closing the card when the crate is destroyed. Device metadata supplied by the new entry still wins; changing fields
 does not carry old devices across. Gameplay and allied targeting rules are unchanged.
+
+### 29.16 Rockrock S2 drone pursuit
+
+The official `skill_table.json` entry `skchr_rockr_2`, ranks 4 and 7, keeps a released drone locked until the enemy
+dies or the skill ends; leaving the operator's range is not a return condition. The old `beforeAttack` callback
+both replaced the body's target and required the lock to remain in range. With no body candidate, the attack loop
+never reached that callback at all.
+
+S2 now ticks one independent arts skill drone (`attack@cnt = 0`, one trait drone). It acquires inside the normal
+range, keeps a living selectable target after it leaves, and reacquires only after losing that target. The body
+continues its own in-range attacks. The released drone inherits the trait's target/ramp, resolved module init/delta,
+live attack interval and overload cap; its multiplier is detached from newly launched body shots during S2 and
+restored on end. Its local ramp is isolated from older ordinary projectiles and handed back to the trait at end;
+existing projectiles keep their launch profile. Natural expiry, explicit stop and caster death
+clear released state; the existing overload buff/cap restoration and stun stay in place. S1, other operators and
+redeployment ramp rules are unchanged.
+
+[ASSUMED] Released hits use the existing independent-skill-drone model: no launch-flight delay, and body control
+does not pause an already released drone. A target becoming hidden or otherwise unselectable releases the lock
+using the shared target filter. The tables do not settle these details. The kit and PR name these assumptions.
+Sources: [official skill table](https://github.com/Kengxxiao/ArknightsGameData/blob/master/zh_CN/gamedata/excel/skill_table.json)
+and [PRTS mode levels](https://prts.wiki/w/卫戍协议：盟约). Controlled regressions cover both forms, leaving/returning,
+newcomers, combat death, end/stop, module ramp, cadence and overload. A fixed-seed production Match and real headless
+Chrome normal-input route reproduce the original failure and the repaired pursuit separately.