feat: Add player sprinting with stamina, flashlight and environmental shadows, and introduce new monster entities with expanded world furniture and safe zones.

style.css

@@ -54,4 +54,33 @@ h1 {
     bottom: 20px;
     left: 20px;
     font-size: 1.2rem;
-}
+    display: flex;
+    flex-direction: column;
+    gap: 10px;
+}
+
+#stamina-container {
+    width: 200px;
+    height: 10px;
+    border: 2px solid #555;
+    background-color: rgba(0, 0, 0, 0.5);
+}
+
+#stamina-bar {
+    width: 100%;
+    height: 100%;
+    background-color: #fff;
+    transition: width 0.1s linear;
+
+    #test-dot {
+        position: absolute;
+        top: 50%;
+        left: 50%;
+        width: 12px;
+        height: 12px;
+        background: red;
+        border-radius: 50%;
+        transform: translate(-50%, -50%);
+        pointer-events: none;
+        z-index: 9999;
+    }