fix: align signingCost.mana with pactCost for procedural guardians (Tiers 4-8)

docs/circular-deps.txt

@@ -1,5 +1,5 @@
 # Circular Dependencies
-Generated: 2026-06-10T21:01:48.810Z
+Generated: 2026-06-11T07:03:04.914Z
 Found: 3 circular chain(s) — these MUST be fixed before modifying involved files.
 
 1. 1) stores/golem-combat-actions.ts > stores/golem-combat-helpers.ts

docs/dependency-graph.json

@@ -1,6 +1,6 @@
 {
   "_meta": {
-    "generated": "2026-06-10T21:01:46.760Z",
+    "generated": "2026-06-11T07:03:02.837Z",
     "description": "Import dependency graph for src/lib/game. Keys are files, values are arrays of files they import.",
     "usage": "To find what a file affects, search for its path in the VALUES. To find what a file depends on, look at its KEY entry."
   },

src/lib/game/data/guardian-encounters.ts

@@ -134,7 +134,7 @@ function getTier4Guardian(floor: number): GuardianDef {
       { type: `${el2}_boost`, value: 0.15 },
     ],
     signingCost: {
-      mana: Math.floor(hpVal * 0.3),
+      mana: Math.floor(hpVal * 0.3 + hpVal * armor * 0.5),
       time: 20 + Math.floor((floor - 250) / 10),
     },
     unlocksMana: resolveMultiUnlockChain(elements),
@@ -181,7 +181,7 @@ function getTier5Guardian(floor: number): GuardianDef {
       { type: 'chain', value: 1 },
     ],
     signingCost: {
-      mana: Math.floor(hpVal * 0.35),
+      mana: Math.floor(hpVal * 0.3 + hpVal * armor * 0.5),
       time: 24 + Math.floor((floor - 290) / 10),
     },
     unlocksMana: resolveMultiUnlockChain(elements),
@@ -219,7 +219,7 @@ function getTier6Guardian(floor: number): GuardianDef {
       { type: 'reflect', value: 0.1 },
     ],
     signingCost: {
-      mana: Math.floor(hpVal * 0.35),
+      mana: Math.floor(hpVal * 0.35 + hpVal * armor * 0.5),
       time: 28 + Math.floor((floor - 340) / 10),
     },
     unlocksMana: chain,
@@ -260,7 +260,7 @@ function getTier7Guardian(floor: number): GuardianDef {
       { type: 'chain', value: 1 },
     ],
     signingCost: {
-      mana: Math.floor(hpVal * 0.4),
+      mana: Math.floor(hpVal * 0.4 + hpVal * armor * 0.5),
       time: 32 + Math.floor((floor - 390) / 10),
     },
     unlocksMana: elements,
@@ -302,7 +302,7 @@ function getTier8Guardian(floor: number): GuardianDef {
       { type: 'reflect', value: 0.1 },
     ],
     signingCost: {
-      mana: Math.floor(hpVal * 0.45),
+      mana: Math.floor(hpVal * 0.45 + hpVal * armor * 0.5),
       time: 36 + Math.floor((floor - 440) / 10),
     },
     unlocksMana: elements,