{
  "observed_before": {
    "stray_body_text_chars": 3585,
    "license_nodes": 2,
    "source_text_prefix": "';window.open().document.write(c)"
  },
  "root_cause": "global replacement of </body> also modified the ECharts HTML string",
  "fix": "insert bridge/licenses only at the last document body end tag",
  "verified_after": {
    "stray_body_text_chars": 0,
    "license_nodes": 1
  },
  "source_page": "ai_app/pages/chat/index.vue",
  "entry": "bottom input right image.tool-icon / chooseImage",
  "gui_boundary": "user corrected to code-only; no further WeChat actions after that instruction"
}