feat(pipeline): WLOC world locations catalog (134th open format)

Novel unified replacement for the half-dozen proprietary
location tables vanilla WoW scattered across AreaPOI.dbc
(zone-discovery landmarks), gameobject_template.spawn rows
(herb/mineral/fishing nodes), creature_template rare-spawn
entries, and AreaTrigger.dbc (zone boundary teleports). Each
WLOC entry binds one world coord (mapId, x, y, z) to its kind
(POI / RareSpawn / HerbNode / MineralVein / FishingSpot /
AreaTrigger / PortalLanding), respawn timer, gathering-skill
gate, and on-discovery XP.

Three presets covering the major location flavors:
  --gen-loc-poi   4 Alliance POIs (Stormwind/Ironforge/
                  Goldshire/Sentinel Hill) with discoverable
                  XP (50..100) and POI-kind iconry
  --gen-loc-herb  5 Elwynn/Westfall herb nodes (Peacebloom
                  skill 1 to Stranglekelp skill 85) with 600s
                  respawn and Herbalism (skillId 182) gating
  --gen-loc-rare  4 vanilla rare-elites with realistic
                  respawn timers (Mor'Ladim 1hr, Princess
                  Tempestria 2hr, Foreman Rigger 30min, Lord
                  Sakrasis 1hr)

Validator catches: id+name required, locKind 0..6,
factionAccess 0..3, no duplicate locationIds, spawnable kinds
(Rare/Herb/Mineral/Fishing) MUST have respawnSec > 0 (else
entity spawns once and never returns — common typo when
adding new spawns). Warns on discoverableXp set with non-POI
kind (XP would never award), requiredSkillId set with non-
gather kind (skill check would never fire), and gather kind
with skill > 0 but level = 0 (every player satisfies — almost
certainly a typo).

Format count 133 -> 134. CLI flag count 1400 -> 1407.

tools/editor/cli_format_table.cpp

@@ -136,6 +136,7 @@ constexpr FormatMagicEntry kFormats[] = {
     {{'W','G','B','K'}, ".wgbk",  "guild",     "--info-wgbk",      "Guild bank tabs catalog"},
     {{'W','Q','G','R'}, ".wqgr",  "quests",    "--info-wqgr",      "Quest graph catalog"},
     {{'W','C','R','A'}, ".wcra",  "crafting",  "--info-wcra",      "Crafting recipe catalog"},
+    {{'W','L','O','C'}, ".wloc",  "world",     "--info-wloc",      "World locations 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"},