refactor(repo): replace legacy openflare-server with Wavelet rename

Delete the old monolithic openflare-server implementation and rename
Wavelet/ to openflare-server/ to complete the migration consolidation.
Update CI workflows, agent Dockerfiles, and deployment docs for the new
layout (frontend/, docker/Dockerfile).

openflare-server/.dockerignore

@@ -1,16 +1,30 @@
 .git
-.github
-node_modules
-web/node_modules
-web/.next
-web/build
-web/out
-dist
-tmp
-logs
-upload
-*.log
+.idea
+.vscode
 .DS_Store
+Thumbs.db
+
+config.yaml
 .env
 .env.*
-docker-compose*.yml
+
+bin/
+build/
+dist/
+data/
+logs/
+uploads/
+s3_cache/
+
+frontend/node_modules/
+frontend/.next/
+frontend/out/
+frontend/build/
+frontend/disk/
+frontend/.env
+frontend/next-env.d.ts
+frontend/*.tsbuildinfo
+frontend/package-lock.json
+
+internal/router/dist/
+internal/router/root/dist/