fix: initialize OIDC config for both auth modules

The domains.auth.oidc module had its own oidc_config instance that
wasn't being configured, causing environment endpoint to always use
hardcoded "local" user instead of authenticated user.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/shared/security.py

@@ -17,9 +17,17 @@ def initialize_oidc(settings: Settings) -> None:
         settings: Application settings containing OIDC configuration
     """
     # Import here to avoid circular imports
-    from src.auth.oidc import oidc_config
+    # Configure BOTH oidc modules (src.auth and src.domains.auth)
+    from src.auth.oidc import oidc_config as auth_oidc_config
+    from src.domains.auth.oidc import oidc_config as domains_oidc_config
 
-    oidc_config.configure(
+    auth_oidc_config.configure(
+        enabled=settings.oidc_enabled,
+        issuer=settings.oidc_issuer,
+        audience=settings.oidc_audience
+    )
+
+    domains_oidc_config.configure(
         enabled=settings.oidc_enabled,
         issuer=settings.oidc_issuer,
         audience=settings.oidc_audience