feat(editor): add WLMA (Loot Mode Policy) — 118th open format

Novel replacement for the implicit loot-distribution
rules vanilla WoW encoded across the GroupLoot system
(CMSG_LOOT_METHOD), the per-quality thresholds for
Need-roll triggering, and the master-looter permission
gates. Each entry binds one group-loot policy mode to
its kind (FFA / RoundRobin / MasterLoot / Need-Before-
Greed / Personal / Disenchant) plus quality threshold,
master-looter requirement, idle-skip seconds, and
disconnect-fallback policy.

Six modeKind values cover the full loot-distribution
surface. The thresholdQuality field uses the WIQR
quality tier convention (0=Poor through 7=Heirloom)
to gate Need-roll triggering — anything below threshold
auto-distributes via FFA-equivalent semantics.

The disconnect-fallback (timeoutFallbackKind) field is
unique to MasterLoot policies — if the master looter
disconnects mid-distribution, the policy auto-promotes
to the fallback mode for democratic recovery. Common
fallbacks: Need-Before-Greed (full roll system),
FreeForAll (fastest unblock).

Three preset emitters: makeStandard (4 5-man / casual
modes covering FFA farming, RoundRobin trash, NBG
Uncommon, MasterLoot Rare), makeRaidPolicies (3 raid
loot policies including MasterLoot Epic with NBG
fallback, Personal Loot, NBG Rare), makeAFKPrevention
(3 AFK-mitigating modes with idleSkipSec gates).

Validator's most novel check is per-kind consistency:
MasterLoot kind REQUIRES masterLooterRequired=1 (else
the policy contradicts itself — "Master Loot mode
without requiring a master looter"). Personal kind
warns if masterLooterRequired=1 (no-op flag). Tightened
fallback-to-self warning to fire ONLY for MasterLoot
where the field is meaningful — original version fired
falsely for FFA/Personal/RoundRobin where the leader-
disconnect scenario doesn't apply (caught + tightened
during smoke-test).

Format count 117 -> 118. CLI flag count 1248 -> 1253.

tools/editor/cli_format_table.cpp

@@ -120,6 +120,7 @@ constexpr FormatMagicEntry kFormats[] = {
     {{'W','T','R','D'}, ".wtrd",  "social",    "--info-wtrd",      "Trade window rules catalog"},
     {{'W','W','F','L'}, ".wwfl",  "social",    "--info-wwfl",      "Word filter catalog"},
     {{'W','M','A','R'}, ".wmar",  "ui",        "--info-wmar",      "Raid marker catalog"},
+    {{'W','L','M','A'}, ".wlma",  "loot",      "--info-wlma",      "Loot mode policy 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"},