Merge pull request 'fix: clamp negative resources + add tutorial focus trap' (#220) from sprint/issue-resource-clamp-focus-trap into main

js/engine.js

@@ -142,6 +142,11 @@ function tick() {
     G.harmony += G.harmonyRate * dt;
     G.harmony = Math.max(0, Math.min(100, G.harmony));
 
+    // Clamp resources to prevent negative values from debuffs/Fenrir drain
+    G.ops = Math.max(0, G.ops);
+    G.trust = Math.max(0, G.trust);
+    G.compute = Math.max(0, G.compute);
+
     // Track totals
     G.totalCode += G.codeRate * dt;
     G.totalCompute += G.computeRate * dt;