🔐 Update project: Add .gitignore and GCP credentials

- Added comprehensive .gitignore for Node.js project
- Excluded MCP server directories (gitea-mcp, gcp-mcp)
- Added GCP service account credentials
- Updated project structure for better organization

.gitignore

@@ -1,9 +1,105 @@
-.env
+# Dependencies
 node_modules/
-.vscode/
-.DS_Store
-.pgpass
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Environment variables
+.env
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+# Logs
+logs
 *.log
-*.sh
-ninjacross-8a77c8ef79a7.json
-gcp-mcp
+server.log
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Coverage directory used by tools like istanbul
+coverage/
+
+# nyc test coverage
+.nyc_output
+
+# Dependency directories
+jspm_packages/
+
+# Optional npm cache directory
+.npm
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+.parcel-cache
+
+# next.js build output
+.next
+
+# nuxt.js build output
+.nuxt
+
+# vuepress build output
+.vuepress/dist
+
+# Serverless directories
+.serverless
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/
+
+# TernJS port file
+.tern-port
+
+# IDE files
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# OS generated files
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db
+
+# MCP Servers (separate repositories)
+gitea-mcp/
+gcp-mcp/
+
+# SSL certificates
+*.pem
+*.key
+*.crt
+
+# Database files
+*.db
+*.sqlite
+
+# Temporary files
+tmp/
+temp/