Initial commit

This is a FastAPI backend microservice template used with `copier` utility.

Features of applied template are:
- Configuration file processing logic
- Metrics and tracing (both optional) configuration available
- Debug endpoints
- Database migration commands, prepared Alembic environment
- Database usage example in ping_db endpoint
- gitea sanity check pipeline

{{project_slug}}/db/connection/__init__.py

@@ -0,0 +1,7 @@
+"""Module responsible for managing database connections."""
+
+from .manager import PostgresConnectionManager
+
+__all__ = [
+    "PostgresConnectionManager",
+]