Initial import: web4beginners editor and deployment setup

.gitignore

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+# OS / editor
+.DS_Store
+
+# Local runtime files
+.offline-server.log
+.offline-server.pid
+
+# Editor auth + reset + rate limit state (never commit)
+content/.editor-credentials.json
+content/.editor-reset.json
+content/.editor-rate-limit.json
+
+# Generated backups
+*.bak
+content/*.bak
+
+# Optional local tooling
+node_modules/