Issue #1028: OCR can read pictures on pages that already have text (#1184)

* Issue #1028: OCR can read pictures on pages that already have text

Recognize Text skipped every page with text, so a picture of text on a
page that also has real text never became searchable. The engine and
the ocr_recognize tool already had skip_text_pages, but the desktop
dialog never offered it, and turning it off read the page's own text
again and added it a second time, so search found every word twice.

- Engine: always collect the page's own glyph boxes; with
  skip_text_pages false, a recognised word at least half covered by
  them (an earlier OCR layer included) is left out. OcrPage counts
  those words as already_on_page. The default still skips pages with
  text.
- Dialog: "Also recognize pages that already have text", kept with the
  other choices and used by Recognize text in multiple files too.
- Tools: ocr_recognize reports already_on_page; ocr_recognize_files
  accepts skip_text_pages.
- The two new labels in the 15 catalogs that translate the OCR dialog.
- Synthetic tests (a picture of a sentence plus real text) for the
  engine, the tool and the dialog; the engine test fails with the
  filter turned off. Unit tests for the coverage check, including
  NaN, infinite, inverted and overlapping boxes.
- parity, docs/roadmap.md M10 row and the ROADMAP.md progress log.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JqiZ658tGndQaHao5Q6mdm

* Issue #1028: Czech labels for the OCR text-pages option

The Czech catalog was completed (#1066) while #1028 was in review, and
czech_covers_ui_literals requires every tl! literal: the two new
Recognize Text labels were missing, so the test failed after the merge.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JqiZ658tGndQaHao5Q6mdm

* Contributors: credit rp6186030 as Raj Patel in the About window

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JqiZ658tGndQaHao5Q6mdm

---------

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: rp6186030 <25706807+rp6186030@users.noreply.github.com>
Co-authored-by: Brandon Thomas <echelon@gmail.com>

contributors/people.toml

@@ -104,6 +104,10 @@ sync_github_name = true   # use the name on your public GitHub profile as displa
 [people.Losminek]
 sync_github_name = true
 
+[people.rp6186030]
+real_name = "Raj Patel"
+sync_github_name = false
+
 [people.yeniufuklar-com]
 real_name = "Ufuk Efe"
 display_name = "Ufuk Efe"