feat(pipeline): add WRUN (Wowee DK Rune Cost) catalog

62nd open format — replaces RuneCost.dbc plus the DK-specific
portions of ChrPowerType. Defines per-spell rune costs (Blood
/ Frost / Unholy) and runic-power generation / consumption
for the Death Knight class.

4 spell tree branches (BloodTree / FrostTree / UnholyTree /
Generic) classify which spec uses each rune cost. Each entry
binds a spell to its rune cost (how many of each rune kind
the spell consumes), an optional anyDeathConvertCost (extra
Death-rune-acceptable cost for procced abilities), and a
runicPowerCost (negative = generator, positive = spender).

Cross-references with prior formats — spellId points at
WSPL.spellId (the spell that uses this rune cost).

CLI: --gen-rune (3 baseline DK abilities — Death Strike
1F+1U + 20RP gen, Frost Strike pure 40 RP spender, Heart
Strike 1B + 10RP gen), --gen-rune-blood (4 blood-tree DK
abilities — Heart Strike, Death and Decay AoE, Vampiric
Blood tank cooldown, Rune Tap self-heal), --gen-rune-frost
(4 frost-tree — Frost Strike, Howling Blast AoE, Obliterate
finisher, Icy Touch ranged opener applying Frost Fever),
--info-wrun, --validate-wrun with --json variants. Validator
catches id+name+spellId required, branch 0..3, no rune cost
> 2 (DK only has 2 of each rune type so a higher cost can
never be paid), runicPowerCost > 100 (DK RP cap), no-cost
warning (spell consumes nothing — verify it's a
passive/stance/form), and high-RP-generator warning (> 25
RP per cast is unusual).

Format graph: 61 → 62 binary formats. CLI flag count: 840
→ 847.

tools/editor/cli_arg_required.cpp

@@ -188,6 +188,8 @@ const char* const kArgRequired[] = {
     "--gen-bnk", "--gen-bnk-bank", "--gen-bnk-special",
     "--info-wbnk", "--validate-wbnk",
     "--export-wbnk-json", "--import-wbnk-json",
+    "--gen-rune", "--gen-rune-blood", "--gen-rune-frost",
+    "--info-wrun", "--validate-wrun",
     "--gen-weather-temperate", "--gen-weather-arctic",
     "--gen-weather-desert", "--gen-weather-stormy",
     "--gen-zone-atmosphere",