feat: increase strike damage values and implement hive_link passive for Swarm

- Updated `strike` damage values in `data/cards.json` to 10, 20, 30, and 40 respectively.
- Added `hive_link` passive skill to Swarm cards with scaling values (1, 2, 4, 8).
- Modified `CombatEngine.js` to process `hive_link` skills during the `_processOnDeath` phase, ensuring the passive effect triggers when Swarm units die.

data/cards.json

@@ -1591,7 +1591,7 @@
           },
           {
             "name": "strike",
-            "value": 5,
+            "value": 10,
             "trigger": "preAttack"
           }
         ]
@@ -1609,7 +1609,7 @@
           },
           {
             "name": "strike",
-            "value": 7,
+            "value": 20,
             "trigger": "preAttack"
           }
         ]
@@ -1627,7 +1627,7 @@
           },
           {
             "name": "strike",
-            "value": 10,
+            "value": 30,
             "trigger": "preAttack"
           }
         ]
@@ -1645,7 +1645,7 @@
           },
           {
             "name": "strike",
-            "value": 15,
+            "value": 40,
             "trigger": "preAttack"
           }
         ]
@@ -3124,28 +3124,52 @@
         "health": 8,
         "armor": 0,
         "delay": 0,
-        "skills": []
+        "skills": [
+          {
+            "name": "hive_link",
+            "value": 1,
+            "trigger": "passive"
+          }
+        ]
       },
       {
         "attack": 4,
         "health": 12,
         "armor": 0,
         "delay": 0,
-        "skills": []
+        "skills": [
+          {
+            "name": "hive_link",
+            "value": 2,
+            "trigger": "passive"
+          }
+        ]
       },
       {
         "attack": 6,
         "health": 18,
         "armor": 0,
         "delay": 0,
-        "skills": []
+        "skills": [
+          {
+            "name": "hive_link",
+            "value": 4,
+            "trigger": "passive"
+          }
+        ]
       },
       {
         "attack": 9,
         "health": 27,
         "armor": 0,
         "delay": 0,
-        "skills": []
+        "skills": [
+          {
+            "name": "hive_link",
+            "value": 8,
+            "trigger": "passive"
+          }
+        ]
       }
     ],
     "flavorText": "Born to die. Born to swarm.",

src/combat/CombatEngine.js

@@ -363,7 +363,7 @@ export class CombatEngine {
   // Process on_death skills for a card that just died
   _processOnDeath(deadCard, alliedLanes, side) {
     for (const s of deadCard.skills) {
-      if (s.trigger !== 'on_death') continue;
+      if (s.trigger !== 'on_death' && s.name !== 'hive_link') continue;
       const allies = alliedLanes.filter(a => a.currentHP > 0);
       const ctx = {};
       this.skillProcessor.process(s, deadCard, null, allies, [], ctx);