Captions: "prefer port captions" picks our transcript over the game's text (#505)

[dhobi]

Fixes #505.

The pocket watch in bedcards.mov plays the boss's lines under sound names that point at NARRATE.PUP's lines 01–07. That file holds an older draft of the speech ("The Kaiser's mobilizing as we speak! It's war!"). The English recording follows a rewritten, quieter script, and so do the Dutch, Japanese and Russian ones, since Dutch and Japanese reuse the English audio. German and French recorded the old draft.

What changes

• New checkbox, "prefer port captions", under Subtitles. It is remembered, and its label is in all six languages. When a line has both an original caption (text from the game's files) and a port caption (our transcript), it shows the port caption; otherwise it shows whichever exists. The two are never shown together.
  • The engine side is GameSession.preferPortCaptions, read in captionMovieSound.
• The watch gets port captions in en, de, fr, ru and ja. These are Whisper drafts, not yet checked by ear. ja gets the English text with the speaker shown as 上司, since it plays the English recording.
• The four kinds of on-screen text are named at the top of taoot/src/captions.ts: subtitles, original captions, port captions and burnt-in captions.
• Japanese burnt-in captions are part of the film's pictures and always show; the checkboxes behave the same over them.

Checkboxes	Shown
none	subtitles (+ burnt-in in ja)
every line that is heard	+ original captions; a port caption where the game has no text
+ prefer port captions	+ port captions where they exist, otherwise original captions

Checks

• taoot/tests/auto/regression.ts:
  • By default the watch shows "It's war!".
  • With the setting on, it shows "Boss: Especially now.".
  • A line with no transcript (zeit.mov) still comes from the game.
  • The test that Dutch and Japanese reuse the English recordings now lists bedcards.mov as a known exception: the audio clips are identical, the pictures differ.
• The caption and locale suites pass; tsc is clean.

🤖 Generated with Claude Code

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

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