style(D.2b): EquipMask polish — align FingerWearRight, note bit 31 (code review)

Code-quality review minors on Task 2: fix the missing space in the
FingerWearRight= alignment and document why bit 31 (0x80000000, present
only in the header's CLOTHING_LOC composite) has no named member.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/AcDream.Core/Items/ClientObject.cs

@@ -61,6 +61,8 @@ public enum ItemType : uint
 /// (docs/research/named-retail/acclient.h:3193; identical to ACE's EquipMask).
 /// The wire (ValidLocations / CurrentWieldedLocation / WieldObject EquipLoc) delivers
 /// these exact bits. Pinned by EquipMaskTests — do NOT renumber.
+/// (The header's <c>CLOTHING_LOC</c> composite also sets bit 31, 0x80000000, which is
+/// not a named INVENTORY_LOC primitive and has no member here; <c>ALL_LOC</c> tops out at bit 30.)
 /// </summary>
 [Flags]
 public enum EquipMask : uint
@@ -85,7 +87,7 @@ public enum EquipMask : uint
     WristWearLeft  = 0x00010000,
     WristWearRight = 0x00020000,
     FingerWearLeft = 0x00040000,
-    FingerWearRight= 0x00080000,
+    FingerWearRight = 0x00080000,
     MeleeWeapon    = 0x00100000,
     Shield         = 0x00200000,
     MissileWeapon  = 0x00400000,