feat(api): /VERSION single source read at startup + GET /version

api/tests/test_version.py

@@ -0,0 +1,22 @@
+from pathlib import Path
+
+from fastapi.testclient import TestClient
+
+from app.main import app
+from app.version import VERSION, get_version
+
+client = TestClient(app)
+ROOT_VERSION = Path(__file__).resolve().parents[2] / "VERSION"
+
+
+def test_get_version_matches_file():
+    assert ROOT_VERSION.is_file()
+    assert get_version() == ROOT_VERSION.read_text(encoding="utf-8").strip()
+
+
+def test_app_version_matches():
+    assert app.version == VERSION == get_version()
+
+
+def test_version_endpoint():
+    assert client.get("/version").json() == {"version": VERSION}