feat(reader): wire double-page spread setting into web reader

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The double_page_spread checkbox in the reader settings panel was inert:
it had no Alpine binding, no apply logic, and no persistence. Default
was also inconsistent (false in settings-manager, absent from server
defaults).

- Add doublePageSpread state to the reader Alpine component, loaded
  from saved settings (default true)
- Add applyDoublePageSpread() which sets the renderer's 'spread'
  attribute to auto/none and persists the setting via saveSettings
- Apply the spread attribute during fixed-layout renderer init
- Bind the settings checkbox with x-model and @change
- Add double_page_spread: true to ReaderService server defaults so
  new users get the same starting value the client expects
- Also improve the PDF pan/select toolbar button: distinct smart-
  select vs pan icons, highlighted state while pan mode is active,
  and dynamic tooltips/aria-labels explaining each mode

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This commit is contained in:

john-okeefe

2026-08-14 08:17:25 -04:00

parent 04e2a069d6

commit f5d9578375

5 changed files with 29 additions and 12 deletions

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templates/reader_templ.go

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