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* M10: edit OCR text on scanned pages so the change shows Editing a recognised word on a scan rewrote it as invisible OCR text, so the page still showed the old word, and the whole OCR layer grouped into one paragraph that rewrapped when one word changed. - An edited invisible paragraph is drawn visibly, over a cover in the paper colour sampled around it, in the scan's sampled ink colour (or the chosen colour). - OCR words group into phrases: a table cell or a tab stop splits them and each scanned line stays apart; a phrase grows rightwards. - Styled rewrites measure with the text matrix's horizontal scale, so stretched OCR words keep their widths instead of overlapping. - The inline editor covers the scanned word and grows like the result. * M10: size OCR text from each word's letters A word box from recognition is tight around the ink, but the text layer assumed every box spans Helvetica's ascender-descender height. A capitals-only word such as "DT" spans only the cap height, so its text was set about 23% too small and its baseline floated up; editing it then drew the new word visibly smaller than the scanned one. The em and baseline now come from the word's letters: cap height or x-height on top, descender or baseline at the bottom. On a real scanned form, a rewritten "DT" -> "DSI" now matches the scanned word's height and baseline. The engine OCR-edit tests build their words the way a scan would box them. * Edit OCR text: sample colours only for invisible blocks, from the current bytes Session::apply looked up every edited block with a fresh text_blocks pass and re-serialized the whole document to render the sampling tile. Text blocks are now cached per page on the editor (keyed on the unmodified document's source identity, so any edit, undo or save invalidates them), visible blocks skip sampling entirely, and the tile renders from the document's current bytes. Adds a visible stretched-text regression test and documents that editing any invisible text makes it visible over a painted cover. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * Edit OCR text: name the cached text-blocks tuple (clippy), rustfmt Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> --------- Co-authored-by: Brandon Thomas <echelon@gmail.com> Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>