- Remove surgeonSignature and hospitalLogo from DEFAULT_FORM_FIELDS.
- Replace logo and signature in default template with inline image-placeholder spans.
- Enhance insertImage() in both editors with prompt for max-width/height (px).
- Abbreviate placeholder text to '插入图片' when width < 80px.
- Force inline insertion using display:inline-flex + vertical-align:middle.
- Port image-source picker modal from ReportEditor to TemplateManage.
- Remove legacy triggerPlaceholderUpload direct upload logic.
