Add SuperRPA integration guide, simple extension and standalone replay page

- docs/integration/superrpa-integration.zh_CN.md: complete integration guide
- rrweb-simple-ext/: minimal Chrome extension for page recording
- replay.html: standalone drag-and-drop replay viewer
- CLAUDE.md: project instructions

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

rrweb-simple-ext/manifest.json

@@ -0,0 +1,20 @@
+{
+  "manifest_version": 3,
+  "name": "rrweb Simple Recorder",
+  "version": "1.0.0",
+  "description": "Simple rrweb page recorder",
+  "permissions": ["activeTab", "storage", "scripting"],
+  "background": {
+    "service_worker": "background.js"
+  },
+  "action": {
+    "default_title": "rrweb Recorder",
+    "default_popup": "popup.html"
+  },
+  "web_accessible_resources": [
+    {
+      "resources": ["record.umd.cjs", "inject.js"],
+      "matches": ["<all_urls>"]
+    }
+  ]
+}