[niksedk]

Adds Batch convert support (SubtitleEdit/subtitleedit#16036 contract) to Persian Subtitle Fixes.

Batch (requestType: "batch")

• No UI. Runs the enabled groups from the saved settings (disabledGroups) over all lines and keeps every fix.
• Returns ok with the subtitle when lines changed, ok without a subtitle when nothing needs fixing. Settings are null in the response.

Configure (requestType: "configure")

• Opens the window without a subtitle: the fix-group sidebar (with descriptions/examples, All/None) stays; the Check scope, Display section, header fix chips, Undo / Apply and re-check and the fix list are hidden. A short "Batch convert settings" panel explains what happens. OK is enabled and returns ok with settings + settingsVersion and no subtitle; Cancel returns cancelled.

Decisions

• One pass, every fix: the window preselects every fix, so batch applies exactly what OK would by default. It does not repeat like Apply and re-check.
• Scope ignored in batch: selectedLinesOnly does not apply (batch has no selection), so all lines are fixed.
• Configure keeps the remembered scope: configure has no selection, so it saves the previously stored selectedLinesOnly (and showHidden) unchanged instead of resetting them to false.
• The async analysis does not run for batch/configure requests; batch calls PersianFixer.FindFixes synchronously.

Compatibility

Subtitle Edit 5.3 ignores "batch" and only sends "run"; the run path is unchanged.

Tests

• New BatchModeTests (5): fixes all lines, nothing-to-fix is ok without subtitle, disabled groups skipped, scope ignored, configure returns settings only and keeps remembered options. dotnet test se5/PersianErrors.Tests: 37 passed.
• Headless end-to-end: a batch request.json run against the built dll exits 0 and returns the fixed lines.
• Configure window not checked visually.

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