feat: add access module boundary migrations

src/govoplan_access/auth/__init__.py

@@ -0,0 +1,21 @@
+"""Public FastAPI access dependency API.
+
+Feature modules may import this package when they need request principal and
+scope dependencies. Implementation details remain under ``govoplan_access.backend``.
+"""
+
+from govoplan_access.backend.auth.dependencies import (
+    ApiPrincipal,
+    get_api_principal,
+    has_scope,
+    require_any_scope,
+    require_scope,
+)
+
+__all__ = [
+    "ApiPrincipal",
+    "get_api_principal",
+    "has_scope",
+    "require_any_scope",
+    "require_scope",
+]