Steadier imports and advanced editing

Several editor paths now protect your work and stay out of the way during more advanced content changes.

• Notion pages and images now import more reliably, and an individual media failure no longer stops the whole import.
• Each code editor stays attached to the right block when a post contains multiple HTML blocks, including during collaborative edits.
• JSON-LD and other data scripts remain preserved without being executed inside the editor preview, while published pages keep the intended structured data.
• Empty link input no longer becomes a broken https:// address, and invalid text links are ignored instead of being applied.
• A published post cannot accidentally lose its publication date, and editor menus clean up safely when you leave the page.