Simplify migrations and redesign utility scripts.

util/test.py

@@ -0,0 +1,16 @@
+#!/usr/bin/env python3
+
+import sys
+from common import _operation
+
+def run_test(args):
+    result = _operation("tests",[
+        "cd service",
+        "FLASK_APP=files/cli:app python3 -m flask db upgrade",
+        "python3 -m pytest -s",
+    ])
+
+    sys.exit(result.returncode)
+
+if __name__=='__main__':
+    run_test(sys.argv)