Add config and client injection with test reorganization.

Introduce typed config objects, optional adapter injection, and .env loading to simplify testing while preserving env-based defaults for production usage.

Co-authored-by: Cursor <[email protected]>

uv.lock

@@ -1059,6 +1059,7 @@ name = "python-repositories"
 version = "0.4.1"
 source = { editable = "." }
 dependencies = [
+    { name = "python-dotenv" },
     { name = "python-utils" },
     { name = "structlog" },
 ]
@@ -1087,6 +1088,7 @@ dev = [
 [package.metadata]
 requires-dist = [
     { name = "minio", marker = "extra == 'minio'", specifier = ">=7.2.16" },
+    { name = "python-dotenv", specifier = ">=1.0.0" },
     { name = "python-utils", specifier = ">=0.1.0", index = "https://gitea.lille-vemmelund.dk/api/packages/brian/pypi/simple/" },
     { name = "redis", marker = "extra == 'redis'", specifier = ">=6.4.0" },
     { name = "structlog", specifier = ">=25.4.0" },