Boss becomes a real fight + readable-but-fair enemy threat

BossState (server-only) + BossAISystem: sole mover, seek -> telegraphed
radial slam (AttackWindup) -> phase-2 speed + swarmer summon. Excluded from
the EnemyAISystem Charger pass; knockback-immune at all 3 stamp sites;
arena-anchored spawn; scaled Health/HitRadius/AttackRange. Grunt windup now
commits in its last ~30% (whiffs out-of-range); Charger stagger roots; grunt
speed 4.2->5.2; swarmer telegraph synced. SweptMove + zone-enemy spawn-stamp
extracted to shared helpers. Zero new [GhostField].

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

Assets/_Project/Scripts/Simulation/Tuning.cs

@@ -72,7 +72,7 @@ namespace ProjectM.Simulation
         /// <summary>DR-042 C6c: Ore deposited into the shared ledger at spawn on a NEW game ONLY (a restored save keeps
         /// its persisted ledger). Bootstraps the Fabricator(30)->Charge->Turret(10) chain so a turret placed before any
         /// mining isn't a silent cold deadlock. Ore-only so the 'build a Fabricator to arm turrets' lesson survives.</summary>
-        public const int StartingOre = 50;
+        public const int StartingOre = 90;
 
         // ---- Expedition run economy (RoomFieldSystem / RunDirectorSystem) ----
 
@@ -95,6 +95,41 @@ namespace ProjectM.Simulation
         /// polish; an idle player died in ~2 s of landing). Subsequent slots keep the normal drip cadence.</summary>
         public const uint RoomEntryGraceTicks = 100;
 
+        // ---- Expedition BOSS (a scaled Charger given a real kit by BossAISystem; server-only feel consts) ----
+
+        /// <summary>Radial SLAM AoE radius (world units): a player inside this ring at wind-up elapse eats the hit
+        /// unless dashing (i-frames). Sized well above melee reach so the tell reads as a boss-scale ring.</summary>
+        public const float BossSlamRadius = 5.5f;
+
+        /// <summary>Radial SLAM damage. Heavy but survivable given generous i-frames + respawn (readable-but-fair).</summary>
+        public const float BossSlamDamage = 34f;
+
+        /// <summary>SLAM telegraph lead (~0.75 s @60): a fair dodge window under interp lag before the ring lands.</summary>
+        public const uint BossSlamWindupTicks = 45;
+
+        /// <summary>Ticks between SLAMs in phase one (~4 s). Phase two multiplies this by BossPhase2SlamCooldownMult.</summary>
+        public const uint BossSlamCooldownTicks = 240;
+
+        /// <summary>Health fraction at/below which the boss enters phase two (faster + summons adds).</summary>
+        public const float BossPhase2HealthFraction = 0.5f;
+
+        /// <summary>Phase-two move-speed multiplier over the boss's base EnemyStats.MoveSpeed (a visible gear shift).</summary>
+        public const float BossPhase2SpeedMult = 1.45f;
+
+        /// <summary>Phase-two SLAM cooldown multiplier (&lt;1 = slams more often when enraged).</summary>
+        public const float BossPhase2SlamCooldownMult = 0.6f;
+
+        /// <summary>Swarmers summoned per phase-two summon (spawned around the boss, tagged as room zone enemies).</summary>
+        public const int BossSummonCount = 3;
+
+        /// <summary>Ticks between phase-two summons (~7 s).</summary>
+        public const uint BossSummonCooldownTicks = 420;
+
+        /// <summary>Cap on live zone enemies the boss will summon toward — it holds fire above this so a boss room
+        /// never floods past readable (also bounded by the director's MaxAlive count).</summary>
+        public const int BossSummonLiveCap = 8;
+
+
         // ---- Inventory (per-player bag; InventoryMath / ResourceHarvestSystem / InventoryDepositSystem) ----
 
         /// <summary>Max stacks a player can carry; InventoryMath rejects deposits past this and the harvest remainder spills to the global ledger.</summary>