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_format_table.cpp

@@ -64,6 +64,7 @@ constexpr FormatMagicEntry kFormats[] = {
     {{'W','C','H','F'}, ".wchf",  "chars",     "--info-wchf",      "Character hair / face customization catalog"},
     {{'W','P','V','P'}, ".wpvp",  "pvp",       "--info-wpvp",      "PvP honor rank + arena tier catalog"},
     {{'W','B','N','K'}, ".wbnk",  "items",     "--info-wbnk",      "Bag / bank slot catalog"},
+    {{'W','R','U','N'}, ".wrun",  "spells",    "--info-wrun",      "Death Knight rune cost catalog"},
     {{'W','F','A','C'}, ".wfac",  "factions",  nullptr,            "Faction catalog"},
     {{'W','L','C','K'}, ".wlck",  "locks",     nullptr,            "Lock catalog"},
     {{'W','S','K','L'}, ".wskl",  "skills",    nullptr,            "Skill catalog"},