feat(pipeline): add WMAC (Wowee Macro / Slash Command) catalog

58th open format — novel format with no direct DBC equivalent.
WoW historically stored player macros client-side in the user
profile and system slash commands as hardcoded engine handlers;
WMAC unifies both into a single structured catalog so default
macros, system slash commands, and shipped player presets can
be authored, validated, and shipped as content alongside the
rest of the open-format graph.

5 macro kinds (SystemSlash for engine /sit /dance handlers,
DefaultMacro for shipped presets, PlayerTemplate for user
templates, GuildMacro for guild-shared, SharedMacro for
account-wide). Multi-line macro bodies are stored verbatim
with literal '\n' separators — the client parses /cast /
/target / /run lines at runtime.

Cross-references with prior formats — requiredClassMask uses
WCHC.classId bit positions (Warrior=0x02, etc, same as WGLY/
WSET/WGTP).

CLI: --gen-mac (3 system slash — /sit, /dance, /target with
[@mouseover] modifier), --gen-mac-combat (4 warrior combat
templates — heroic strike spam, charge/intercept stance dance,
intercept stance switch, victory rush+bloodthirst fallback —
each with default key bindings), --gen-mac-utility (3 universal
utility — /follow target, mass /inv with %targetN tokens,
/releasecorpse via RepopMe()), --info-wmac, --validate-wmac
with --json variants. Validator catches id+name+body required,
kind 0..4, body within maxLength cap, body starting with '/'
or '#' (slash command or showtooltip annotation), and
SystemSlash + classMask warning (slash commands are class-
agnostic — restricting them to a class makes no sense).

Format graph: 57 → 58 binary formats. CLI flag count: 814
→ 819.

tools/editor/cli_list_formats.cpp

@@ -82,6 +82,7 @@ constexpr FormatRow kFormats[] = {
     {"WKBD", ".wkbd",  "input",     "KeyBinding.dbc + default binds",   "Default keybinding catalog"},
     {"WSCH", ".wsch",  "spells",    "SpellSchools.dbc + Resistances",   "Spell school / damage type catalog"},
     {"WLFG", ".wlfg",  "social",    "LFGDungeons.dbc + LFG rewards",    "LFG / Dungeon Finder catalog"},
+    {"WMAC", ".wmac",  "ui",        "(client-side macro storage)",      "Macro / slash command catalog"},
 
     // Additional pipeline catalogs without the alternating
     // gen/info/validate CLI surface (loaded by the engine