feedback5 R4: one file per operator kit — kits/tier1..6.js split into kits/ops/<chessId>-<codename>.js (129 kits), kits/shared/tier1..6.js (the helpers two or more kits of a tier use, and each tier's header notes) and kits/index.js (the registry, same keys in the same order); the tier files become re-export shims

Pure move: every line of a kit, of a helper and of the tier headers is copied verbatim (only the headers' first
line names the new file); a helper used by one kit moved into that kit's file. Glue only: the generated imports,
`export default { … }` around each registry entry, `export { … }` lists in shared/tier2..6.js, and tier4's
`(bb, chess, def)` default-argument wrapper as shared/tier4.js `withDefaults` (applied in each tier-4 kit file).
kits/index.js loads every kit file with a guarded dynamic import (browser-safe, no directory listing); tierN.js
re-export the tier registry (TIER_KITS) and their old named exports (tier1 helpers + tinmanKit, tier6
PITHST_ELEMENTS). The merged registry, every tier default and named export have the same keys, order, frozenness
and function sources as before. test/docs-consistency.test.js reads the moved code at its new paths.
Golden: GOLDEN_FULL=1 node --test test/golden.test.js unchanged.

server/sim/content/kits/ops/chess_char_1_16-tinman.js

@@ -0,0 +1,67 @@
+// server/sim/content/kits/ops/chess_char_1_16-tinman.js — 锡人 (char_4151_tinman) kit, tier 1 (hidden).
+// Conventions of the tier-1 kits: ../shared/tier1.js; kit contract and rules: ../README.md.
+
+import { num, talentBb, moduleBb, enemiesInGrid, once, spTimeBonus, makeZone, instantKind } from '../shared/tier1.js';
+
+// =================================================================================================================
+// kit builders shared by two chess ids
+
+/**
+ * 锡人 “大拉里” (chess_char_1_16 hidden and chess_char_2_19): throw an alchemy unit at the current target —
+ * for projectile_delay_time s, ground enemies within projectile_range tiles take atk_scale × ATK arts per second,
+ * allies there recover hp_recovery_per_sec_ratio × ATK per second. Elite: 凋敝魂灵 (skill@damage_scale: damage-over-
+ * time taken by ground enemies inside a unit ×1.2) and the module's +sp_recovery_per_sec SP while a unit exists.
+ */
+export function tinmanKit(bb, chess, def) {
+  const dur = num(bb.projectile_delay_time, 10);
+  const radius = num(bb.projectile_range, 1.5);
+  const dmgScale = num(bb.atk_scale);
+  const healRatio = num(bb.hp_recovery_per_sec_ratio);
+  const wither = num(talentBb(chess, 1)['skill@damage_scale'], 1);
+  const spBonus = num(moduleBb(chess).sp_recovery_per_sec);
+  const witherKey = 'tinman:wither';
+  return {
+    skill: {
+      kind: instantKind(def),
+      onStart({ battle, unit }) {
+        const tgt = enemiesInGrid(battle, unit, null, { n: 1, groundOnly: true })[0] ?? enemiesInGrid(battle, unit, null, { n: 1 })[0];
+        const x = tgt ? tgt.x : unit.x + unit.fwd[1], y = tgt ? tgt.y : unit.y + unit.fwd[0];
+        const atk = unit.s.atk;
+        unit.mem.tinZones = (unit.mem.tinZones ?? 0) + 1;
+        makeZone(battle, unit, {
+          x, y, radius, duration: dur, skill: 'tinman', onPulse(b) {
+            for (const e of b.foesInRadius(x, y, radius)) {
+              if (e.isFlying || e.s.flags.untargetable) continue;
+              if (wither > 1) b.addBuff(e, { key: witherKey, duration: 1.05, data: { mul: wither }, source: unit });
+              b.dealDamage(unit, e, { amount: atk * dmgScale, type: 'arts', isSkill: true, canDodge: false, tags: ['dot', 'zone'] });
+            }
+            if (healRatio > 0) for (const a of b.alliesInRadius(x, y, radius, null)) if (a.hp < a.s.maxHp) b.heal(unit, a, atk * healRatio, { tags: ['zone'] });
+          },
+          onEnd() { unit.mem.tinZones = Math.max(0, (unit.mem.tinZones ?? 1) - 1); },
+        });
+      },
+    },
+    talents: [{ install(battle, unit) {
+      if (wither > 1) {
+        // "持续伤害" = damage over time only: 'dot'-tagged ticks and the per-second ticks of a necrosis / apoptosis
+        // burst — never instantaneous bursts (burn/neural bursts, skill/summon bursts are also tagged 'burst')
+        once(battle, witherKey, () => battle.on('hit', (ctx) => {
+          if (!ctx.target || ctx.target.side !== 'enemy') return;
+          const tags = ctx.dmg.tags || [];
+          if (!(tags.includes('dot') || tags.includes('necrosis') || tags.includes('apoptosis'))) return;
+          const w = ctx.target.findBuff(witherKey);
+          if (w) ctx.dmg.amount *= w.data?.mul ?? 1;
+        }));
+      }
+      spTimeBonus(battle, unit, spBonus, () => (unit.mem.tinZones ?? 0) > 0);
+    } }],
+  };
+}
+
+export default {
+  // 1_15 盟约·辅助干员 (hidden, band 优等生): its kit is tier6.js `pithst` (迭代元素 — one implementation only).
+
+  // ---------------------------------------------------------------------------------------------------------------
+  // 1_16 锡人 (hidden tier-1 entry of chess_char_2_19): see tinmanKit.
+  chess_char_1_16_a: tinmanKit,
+};