fix(player): EnchantmentMask bit fix + Vitae key=0 + absolute Vitals overlay

Three fixes to the Vitals HUD path:

1. EnchantmentMask Vitae/Cooldown bit values (parser regression).
   ACE's enum at references/ACE/Source/ACE.Entity/Enum/EnchantmentCategory.cs
   has Vitae=0x4 and Cooldown=0x8. I had them swapped — when ACE wrote
   the Vitae singleton with mask bit 0x4 set, my parser read it as
   "Cooldown" and tried to consume a count-prefixed list (no count
   present), blowing up with FormatException, returning null from
   TryParse. PlayerDescription consequently failed to parse on every
   live login. Fix: swap the bit values + bucket constants to match ACE.

2. Vitae applies regardless of StatModKey. Live trace showed:
     vitals: PD-ench spell=666 layer=0 bucket=Vitae key=0 val=0.95
   ACE's Vitae enchantment serializes with key=0 (meaning "any vital")
   per retail. EnchantmentMath was filtering Vitae by key like other
   buffs, so the 5% death penalty never applied to Health/Stam/Mana
   max — the Vitals percent read 95% because current=276 / max=290
   (server already reduced current; our max didn't match). Fix:
   Vitae bucket short-circuits the per-key check and applies its
   multiplier to all vitals.

3. Absolute current/max in HUD overlay. VitalsVM exposes
   HealthCurrent/Max, StaminaCurrent/Max, ManaCurrent/Max from
   LocalPlayerState. VitalsPanel overlay format is now
   "current / max (percent%)" when absolutes are available; falls
   back to percent-only pre-PlayerDescription. Matches the retail
   look the user requested ("HP 400/400" style).

Test deltas (841 -> 842):
  - Existing Vitae test still passes (key matches statKey case).
  - New Vitae key=0 test pins the "any vital" semantics.
  - Existing PlayerDescription Vitae singleton test updated to
    write mask=0x4 (was 0x8 with the swapped enum).

Live verification: with +Acdream's Vitae-666 active and Endurance.current=290:
  HP   : current=138, max=145×0.95≈138 → bar 100% (was 95%)
  Stam : current=276, max=290×0.95≈276 → bar 100%
  Mana : current=190, max=200×0.95≈190 → bar 100%
Overlay reads e.g. "276 / 276 (100%)".

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/AcDream.Core.Net/Messages/PlayerDescriptionParser.cs

@@ -153,13 +153,18 @@ public static class PlayerDescriptionParser
 
     /// <summary>Bucket the enchantment came from in the
     /// <c>EnchantmentMask</c> outer bitfield. Determines whether the
-    /// stat-mod aggregator multiplies or adds.</summary>
+    /// stat-mod aggregator multiplies or adds. **Bit values match
+    /// ACE's `EnchantmentMask` enum** at
+    /// `references/ACE/Source/ACE.Entity/Enum/EnchantmentCategory.cs` —
+    /// Vitae = 0x4 (bit 2), Cooldown = 0x8 (bit 3). Critically NOT the
+    /// reverse: getting these wrong causes the parser to read a Vitae
+    /// singleton as a Cooldown list-with-count and fail.</summary>
     public enum EnchantmentBucket : uint
     {
         Multiplicative = 1,
         Additive       = 2,
-        Cooldown       = 4,
-        Vitae          = 8,
+        Vitae          = 4,
+        Cooldown       = 8,
     }
 
     [Flags]
@@ -168,8 +173,8 @@ public static class PlayerDescriptionParser
         None           = 0,
         Multiplicative = 0x01,
         Additive       = 0x02,
-        Cooldown       = 0x04,
-        Vitae          = 0x08,
+        Vitae          = 0x04,
+        Cooldown       = 0x08,
     }
 
     public readonly record struct Parsed(
@@ -257,9 +262,12 @@ public static class PlayerDescriptionParser
                 weenieType, propertyFlags, vectorFlags, hasHealth,
                 bundle, positions, attributes, skills, spells, enchantments);
         }
-        catch (FormatException)
+        catch (FormatException ex)
         {
             // Truncation mid-walk — return null so caller knows parse failed.
+            // Diagnostic when ACDREAM_DUMP_VITALS=1 surfaces the failure point.
+            if (System.Environment.GetEnvironmentVariable("ACDREAM_DUMP_VITALS") == "1")
+                System.Console.WriteLine($"PlayerDescriptionParser: FormatException at pos={pos}/{payload.Length}: {ex.Message}");
             return null;
         }
     }