Preserve source rank recovery categories for WoW actor cooldowns (#3)

Native integration: Codex/healer-man-godot#114.
Coordinator: /root, session 01a11cd3-fa7c-7510-ba8f-bc7a3d0310a6.
Workers: single_pass_source, single_pass_validation, single_pass_renderer; GPT-6 Luna xhigh.

scripts/generate-wow335-abilities.mjs

@@ -190,6 +190,7 @@ function parseSpells(buffer, castTimes, durations, radii, ranges, icons) {
         .replace(/\.(?:blp|tga)$/i, "")
         .toLowerCase(),
       powerCostPercentage: unsigned(shifted(204)),
+      startRecoveryCategory: unsigned(shifted(205)),
       startRecoveryTimeMs: unsigned(shifted(206)),
       effects: Array.from({ length: 3 }, (_, effectIndex) => ({
         index: effectIndex,
@@ -293,8 +294,9 @@ function slimRank(spell, spells) {
     description: resolveDescription(spell, spells),
     castTimeMs: spell.castTimeMs,
     cooldownMs: Math.max(spell.recoveryTimeMs, spell.categoryRecoveryTimeMs),
-    // Zero is the DBC signal for abilities that do not start a global cooldown.
+    // Keep the category key independent from its StartRecoveryTime duration.
     gcdMs: spell.startRecoveryTimeMs,
+    gcdCategoryId: spell.startRecoveryCategory,
     // SpellDuration.dbc uses negative durations for permanent/toggled effects.
     // Preserve those as zero so the runtime converts them to a non-expiring aura
     // instead of a one-millisecond aura that the AI immediately recasts.