feat(content): function signatures + test cases

backend/data/questions/categorize-box-according-to-criteria.yaml

@@ -8,6 +8,26 @@ categories:
 patterns:
   - greedy
 
+function_signature: "def categorize_box(length: int, width: int, height: int, mass: int) -> str:"
+
+test_cases:
+  visible:
+    - input: { length: 1000, width: 35, height: 700, mass: 300 }
+      expected: "Heavy"
+    - input: { length: 200, width: 50, height: 800, mass: 50 }
+      expected: "Neither"
+  hidden:
+    - input: { length: 10000, width: 1, height: 1, mass: 1 }
+      expected: "Bulky"
+    - input: { length: 1000, width: 1000, height: 1000, mass: 100 }
+      expected: "Both"
+    - input: { length: 100, width: 100, height: 100, mass: 99 }
+      expected: "Neither"
+    - input: { length: 1, width: 10000, height: 1, mass: 200 }
+      expected: "Both"
+    - input: { length: 9999, width: 9999, height: 9999, mass: 50 }
+      expected: "Bulky"
+
 description: |
   Given four integers `length`, `width`, `height`, and `mass`, representing the dimensions and mass of a box, respectively, return *a string representing the **category** of the box*.