chore(tests): remove obsolete SQL test scripts for sort order validation

- Deleted `test_sort_fix.sql` and `test_sort_orders.sql` as they are no longer needed for the current implementation.
- These scripts were previously used to verify sort order constraints and helper functions, but have been deemed unnecessary.

test_sort_fix.sql

@@ -1,41 +0,0 @@
--- Test script to verify the sort order constraint fix
-
--- Test the helper function
-SELECT get_sort_column_name('status');    -- Should return 'status_sort_order'
-SELECT get_sort_column_name('priority');  -- Should return 'priority_sort_order'
-SELECT get_sort_column_name('phase');     -- Should return 'phase_sort_order'
-SELECT get_sort_column_name('members');   -- Should return 'member_sort_order'
-SELECT get_sort_column_name('unknown');   -- Should return 'status_sort_order' (default)
-
--- Test bulk update function (example - would need real project_id and task_ids)
-/*
-SELECT update_task_sort_orders_bulk(
-    '[
-        {"task_id": "example-uuid", "sort_order": 1, "status_id": "status-uuid"},
-        {"task_id": "example-uuid-2", "sort_order": 2, "status_id": "status-uuid"}
-    ]'::json,
-    'status'
-);
-*/
-
--- Verify that sort_order constraint still exists and works
-SELECT 
-    tc.constraint_name,
-    tc.table_name,
-    kcu.column_name
-FROM information_schema.table_constraints tc
-JOIN information_schema.key_column_usage kcu 
-    ON tc.constraint_name = kcu.constraint_name
-WHERE tc.constraint_name = 'tasks_sort_order_unique';
-
--- Check that new sort order columns don't have unique constraints (which is correct)
-SELECT 
-    tc.constraint_name,
-    tc.table_name,
-    kcu.column_name
-FROM information_schema.table_constraints tc
-JOIN information_schema.key_column_usage kcu 
-    ON tc.constraint_name = kcu.constraint_name
-WHERE kcu.table_name = 'tasks'
-  AND kcu.column_name IN ('status_sort_order', 'priority_sort_order', 'phase_sort_order', 'member_sort_order')
-  AND tc.constraint_type = 'UNIQUE';

test_sort_orders.sql

@@ -1,30 +0,0 @@
--- Test script to validate the separate sort order implementation
-
--- Check if new columns exist
-SELECT column_name, data_type, is_nullable, column_default
-FROM information_schema.columns 
-WHERE table_name = 'tasks' 
-  AND column_name IN ('status_sort_order', 'priority_sort_order', 'phase_sort_order', 'member_sort_order')
-ORDER BY column_name;
-
--- Check if helper function exists
-SELECT routine_name, routine_type
-FROM information_schema.routines 
-WHERE routine_name IN ('get_sort_column_name', 'update_task_sort_orders_bulk', 'handle_task_list_sort_order_change');
-
--- Sample test data to verify different sort orders work
--- (This would be run after the migrations)
-/*
--- Test: Tasks should have different orders for different groupings
-SELECT 
-  id, 
-  name, 
-  sort_order, 
-  status_sort_order, 
-  priority_sort_order, 
-  phase_sort_order, 
-  member_sort_order
-FROM tasks 
-WHERE project_id = '<test-project-id>'
-ORDER BY status_sort_order;
-*/