Add FastLink_Lite custom rules enhancement

- Add custom rules editor to LUCI web interface
- Support 32 rule types (DOMAIN, IP-CIDR, GEOSITE, etc.)
- Rule CRUD, sorting, batch import, templates
- netflow-rules script for mihomo config injection
- Standalone IPK repackaging support

.gitignore

@@ -0,0 +1,28 @@
+# Large binary files
+*.ipk
+*.tar.gz
+*.dat
+*.mmdb
+*.metadb
+*.exe
+*.dll
+
+# Temp / build dirs
+_tmp_extract/
+_clean/
+_repack_verify/
+__pycache__/
+*.pyc
+
+# External projects
+clash-verge-rev-dev/
+zashboard-main/
+
+# Personal files
+*.backup.json
+reorganize*.ps1
+reorganize*.py
+
+# OS files
+.DS_Store
+Thumbs.db