fix: resolve Docker build errors - JSX ternary, missing barrel export, missing ActivityLog component

docs/dependency-graph.json

@@ -1,6 +1,6 @@
 {
   "_meta": {
-    "generated": "2026-05-18T12:47:00.491Z",
+    "generated": "2026-05-18T12:51:41.151Z",
     "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."
   },
@@ -416,7 +416,6 @@
     "stores/combatStore.ts": [
       "stores/combat-actions.ts",
       "stores/combat-state.types.ts",
-      "stores/gameStore.ts",
       "stores/prestigeStore.ts",
       "types.ts",
       "utils/activity-log.ts",