chore(scripts): rename deploy:* → build:docker:*, add deploy:remote:*

- deploy:dev/test/prod → build:docker:dev/test/prod to distinguish
  local Docker builds from remote server deploys
- Add deploy:remote:test and deploy:remote:prod — SSH to linode.oneskyit.com
  and run deploy.sh on the server
- Trailing whitespace cleanup in .env.*.default files

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.env.dev.default

@@ -10,6 +10,8 @@ PUBLIC_AE_API_PORT=443
 PUBLIC_AE_API_PATH=
 PUBLIC_AE_API_SECRET_KEY=XXXX
 PUBLIC_AE_API_CRUD_SUPER_KEY=XXXX
+
+
 # Bootstrap key: used only for the unauthenticated site-domain lookup on first load.
 # Separate from the main API key — has limited permissions (no account_id required).
 PUBLIC_AE_BOOTSTRAP_KEY=XXXX