implemented LE and ACME and fixed some bugs

.gitignore

@@ -87,6 +87,14 @@ vite.config.ts.timestamp-*
 *.sqlite3
 backend/spaces.db
 backend/*.db
+backend/**/*.db
+backend/**/*.db-shm
+backend/**/*.db-wal
+
+# Test databases
+backend/testing/**/*.db
+backend/testing/**/*.db-shm
+backend/testing/**/*.db-wal
 
 # Database backups
 *.sql.backup
@@ -114,6 +122,9 @@ yarn-error.log*
 pnpm-debug.log*
 lerna-debug.log*
 backend/*.log
+backend/logs/
+backend/logs/**
+*.log.*
 
 # ============================================
 # IDE & Editors
@@ -337,6 +348,14 @@ backend/test-outputs/
 # Script outputs
 backend/scripts/output/
 
+# Testing directory (keep structure, ignore test databases)
+backend/testing/scripts/*.db
+backend/testing/scripts/*.db-shm
+backend/testing/scripts/*.db-wal
+
 # Keep directory structure but ignore contents
 !backend/uploads/.gitkeep
 !backend/config/providers/.gitkeep
+!backend/testing/.gitkeep
+!backend/testing/README.md
+!backend/testing/scripts/*.go