Slice 1: combat readability + HUD declutter (DR-038)

Four playtest do-now wins:
- Enemy health bars: pooled world-space Canvas, on-damage-sticky + fade,
  always-on <25% HP (CombatFeedbackSystem; no new replication).
- Telegraph fix: new baked client-safe EnemyTelegraph sizes the danger-cone ramp
  per enemy (0->1 ending at impact, fixes the Charger plateau); windup 18->22;
  a windup scale-pulse.
- Build-mode toggle: BuildPaletteState.PaletteOpen hides the palette by default,
  Tab / gamepad-Y toggles, with a discovery chip (HudSystem/BuildSendSystem).
- Charger committed-lunge tell: [GhostEnabledBit] IsLunging derived once/tick from
  LungeState (the Dead idiom); the danger cone persists through the lunge.

345/345 EditMode (+3 IsLunging derive tests); Play-validated: ghost-hash change
did not break the handshake, bake correct (telegraph on all enemies, IsLunging
baked-disabled on the Charger, replicated to client), no runtime errors.

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

Assets/_Project/Scripts/Simulation/Combat/LungeState.cs

@@ -1,5 +1,6 @@
 using Unity.Entities;
 using Unity.Mathematics;
+using Unity.NetCode;
 
 namespace ProjectM.Simulation
 {
@@ -30,4 +31,19 @@ namespace ProjectM.Simulation
         /// rides EnemyAttackCooldown.NextAttackTick; this field only scores the punish.</summary>
         public uint StaggerUntilTick;
     }
+
+    /// <summary>
+    /// REPLICATED enableable MID-LUNGE flag on a Charger (Slice 1, Feature D). ENABLED for exactly the ticks a
+    /// Charger is committed to its locked-direction lunge (<see cref="LungeState.UntilTick"/> active), DISABLED
+    /// otherwise. The ONLY replicated Charger surface beyond the stock LocalTransform — a <c>[GhostEnabledBit]</c>,
+    /// NOT a [GhostField], because the client needs only on/off: the lunge HEADING is already carried by the
+    /// replicated LocalTransform.Rotation (EnemyAISystem writes LookRotationSafe(lungeDir) each lunge tick), so the
+    /// client indicator derives direction via AnimParamMath.PlanarForward like the danger cone already does. Fixes
+    /// the cue VANISHING at commit (AttackWindup zeroes on commit, so a windup-gated cone disappears exactly when
+    /// the danger is realest): this bit STAYS on through the committed travel. Server-derived once per tick from
+    /// LungeState.UntilTick in EnemyAISystem (the sole LungeState writer); BAKE DISABLED (a Charger spawns
+    /// not-lunging) + visit via .WithPresent&lt;IsLunging&gt;() to write the bit while disabled (the Dead idiom).
+    /// </summary>
+    [GhostEnabledBit]
+    public struct IsLunging : IComponentData, IEnableableComponent { }
 }