chore: add remaining test docs, scripts and temp files

- Add Git commit preparation checklist
- Add Phase testing guides and issue tracking
- Add utility scripts (env setup, test data initialization)
- Add temp migration SQL files (for reference)
- Update startup scripts and README
- Remove obsolete scripts

backend/temp-migration/quick-check.sql

@@ -0,0 +1,17 @@
+-- 快速检查Schema和数据
+SELECT 
+    'Schema检查' as check_type,
+    schema_name,
+    (SELECT COUNT(*) FROM information_schema.tables WHERE table_schema = s.schema_name) as table_count
+FROM information_schema.schemata s
+WHERE schema_name IN (
+    'platform_schema', 'aia_schema', 'pkb_schema',
+    'asl_schema', 'common_schema', 'dc_schema',
+    'rvw_schema', 'admin_schema', 'ssa_schema', 'st_schema'
+)
+ORDER BY schema_name;
+
+
+
+
+