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_format_table.cpp

@@ -60,6 +60,7 @@ constexpr FormatMagicEntry kFormats[] = {
     {{'W','K','B','D'}, ".wkbd",  "input",     "--info-wkbd",      "Keybinding catalog"},
     {{'W','S','C','H'}, ".wsch",  "spells",    "--info-wsch",      "Spell school / damage type catalog"},
     {{'W','L','F','G'}, ".wlfg",  "social",    "--info-wlfg",      "LFG / Dungeon Finder catalog"},
+    {{'W','M','A','C'}, ".wmac",  "ui",        "--info-wmac",      "Macro / slash command 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"},