Add build endpoint

backend/app/services/builds.py

@@ -0,0 +1,22 @@
+import json
+from pathlib import Path
+from typing import Dict, List
+
+DATA_DIR = Path(__file__).resolve().parent.parent / "data"
+
+
+def _load_json(filename: str) -> Dict:
+    path = DATA_DIR / filename
+    with open(path, encoding="utf-8") as file:
+        return json.load(file)
+
+
+def _sort_builds(builds: List[Dict]) -> List[Dict]:
+    return sorted(builds, key=lambda build: build.get("number", 0), reverse=True)
+
+
+def build_history() -> Dict:
+    """Return Jenkins build history data."""
+    history = _load_json("build_history.json")
+    builds = history.get("builds", [])
+    return {"builds": _sort_builds(builds)}