[Feature Request] Full-text search: show/jump to the specific page in multi-page documents

Description This relates to the previously closed discussion which was auto-closed due to inactivity rather than lack of interest. I'd like to re-raise it, since it's still a real pain point. Problem: When a document has 200+ pages, full-text search only tells you the matched text exists somewhere in the document — it doesn't tell you *which page*. For large scanned documents, this means manually scrolling through hundreds of pages to find the match. Suggested approach: One relatively low-effort way to support this without changing how OCR text is stored today: if page text is concatenated with a form-feed character (\f) as a page separator, the page number for a search match can be derived by counting how many \f characters occur before the matched text's offset in the string. E.g., if there are 20 \f characters before the match, the match is on page 21. This wouldn't require re-architecting OCR storage into a per-page format — just consistent us…