fix(backend): update route tests to include filter_mode parameter

Add filter_mode='permissive' to all get_store_agents mock assertions
to match the updated function signature.

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

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

autogpt_platform/backend/backend/server/v2/store/routes_test.py

@@ -65,6 +65,7 @@ def test_get_agents_defaults(
         category=None,
         page=1,
         page_size=20,
+        filter_mode="permissive",
     )
 
 
@@ -112,6 +113,7 @@ def test_get_agents_featured(
         category=None,
         page=1,
         page_size=20,
+        filter_mode="permissive",
     )
 
 
@@ -159,6 +161,7 @@ def test_get_agents_by_creator(
         category=None,
         page=1,
         page_size=20,
+        filter_mode="permissive",
     )
 
 
@@ -206,6 +209,7 @@ def test_get_agents_sorted(
         category=None,
         page=1,
         page_size=20,
+        filter_mode="permissive",
     )
 
 
@@ -253,6 +257,7 @@ def test_get_agents_search(
         category=None,
         page=1,
         page_size=20,
+        filter_mode="permissive",
     )
 
 
@@ -299,6 +304,7 @@ def test_get_agents_category(
         category="test-category",
         page=1,
         page_size=20,
+        filter_mode="permissive",
     )
 
 
@@ -348,6 +354,7 @@ def test_get_agents_pagination(
         category=None,
         page=2,
         page_size=5,
+        filter_mode="permissive",
     )