Initialize Clash Web source and deployment documentation

.gitignore

@@ -0,0 +1,38 @@
+# Dependencies and build output
+node_modules/
+/web/dist/
+/bin/
+*.tsbuildinfo
+
+# Local runtime state and secrets
+/data/
+/.ssh/
+.env
+.env.*
+!.env.example
+*.sqlite*
+*.db
+*.pem
+*.key
+
+# Test output and temporary files
+/.cache/
+test-results/
+playwright-report/
+__pycache__/
+*.pyc
+*.log
+*.pid
+*.tmp
+*.bak
+*.backup*
+
+# Distribution packages
+*.tar.gz
+*.tar.gz.sha256
+*.zip
+
+# Editor and OS files
+.idea/
+.DS_Store
+Thumbs.db