Add resource data module placeholder

Placeholder for centralizing theological resource data to avoid
duplication across listing and detail routes. This will be used
when refactoring resource routes to share data.

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

kjvstudy_org/resource_data.py

@@ -0,0 +1,13 @@
+"""
+Centralized data for theological resources.
+This module provides data access for both listing and detail pages.
+"""
+
+def get_data_for_route(route_name):
+    """
+    Import and return the appropriate data getter based on route name.
+    This avoids duplicating large data structures across routes.
+    """
+    # Import will happen dynamically based on route
+    # For now, return None - routes will inline data until refactored
+    return None