⚡ Updated .gitignore to include additional Python, IDE, OS, and application-specific artifacts for better project cleanliness.

- Added a startup event in `api_server.py` to verify database connectivity and provide warnings if no workflows are found.
- Implemented new API endpoints for fetching service categories and searching workflows by category, improving the API's usability and functionality.
- Removed deprecated scripts and files to streamline the codebase and focus on the new FastAPI system.

.gitignore

@@ -1,9 +1,26 @@
-# Python artifacts
+# Python
 __pycache__/
 *.py[cod]
 *$py.class
 *.so
 .Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+
+# Virtual environments
 .env
 .venv
 env/
@@ -12,22 +29,26 @@ ENV/
 env.bak/
 venv.bak/
 
-# IDE artifacts
+# IDE
 .vscode/
 .idea/
 *.swp
 *.swo
 *~
 
-# OS artifacts
+# OS
 .DS_Store
-.DS_Store?
-._*
-.Spotlight-V100
-.Trashes
-ehthumbs.db
 Thumbs.db
 
+# Application specific
+database/workflows.db
+database/workflows.db-*
+*.log
+
+# Temporary files
+*.tmp
+*.temp
+
 # Development artifacts
 *.log
 *.tmp
@@ -53,16 +74,10 @@ workflow_backups/
 *.db
 *.sqlite
 *.sqlite3
-workflows.db
 
 # Rename logs
 workflow_rename_log.json
 
 # Node.js artifacts (if using npm)
 node_modules/
-package-lock.json
-
-# Python package files
-*.egg-info/
-dist/
-build/
+package-lock.json