Accessibility: TalkBack improvements — contentDescription, semantics, liveRegion

[AbdulAziz-Hatem]

TalkBack Accessibility Improvements

What this does

Adds contentDescription, semantics, and liveRegion annotations across the Compose UI so TalkBack users can navigate and interact with the app effectively.

Why needed

The app had zero uses of Modifier.semantics and almost no contentDescription on interactive elements. TalkBack users could not:

• Know what the recording overlay button does (it always said "Control Recording")
• Hear that recording was active (the blinking red dot was invisible to TalkBack)
• Understand permission status icons (✓/✗ had no description)
• Navigate by headings in the sponsor screen

Files changed

File	Change
values/strings.xml	+12 accessibility string resources (a11y_overlay_*, a11y_permission_*, a11y_contact_photo)
RecordingOverlay.kt	Dynamic contentDescription per state, liveRegion + stateDescription semantics, localized drag handle
PermissionsScreen.kt	contentDescription on status icons, CircularProgressIndicator, dialog icons
ContactSelectionDialog.kt	contentDescription on contact photos and search icon
SponsorScreen.kt	Heading semantics on BioCard title
SettingsScreen.kt	Semantic role on folder/template ListItems and contact options, localized WarningCard icon
ci-build.yml	GitHub Actions CI workflow for automated build verification

Build verification

CI build passes ✅ — assembleDebug + Upload Debug APK both succeed.

Android documentation references

• Accessibility in Compose
• Custom semantics in Compose
• LiveRegionMode for announcements
• Material 3 in Compose

Note on translations

New strings were added only to values/strings.xml (English). Weblate will handle translation to other languages automatically.

AI disclosure

This PR was created with AI assistance (RikkaHub Agent). All code was reviewed for correctness before submission. CI build was verified passing.

Assisted-by: RikkaHub Agent

[kitsumed]

1. Please update main branch to reflect latest changes
2. There are some unrelated changes in the PR like adding a CI. Please ensure that ONLY change for accesibility are there.

[kitsumed]

Look comment before

[AbdulAziz-Hatem]

Thanks for the feedback! Both points are addressed:

1. Main branch updated ✅ — I synced my fork's main with the latest upstream (including the merged fix(ui): handle edge-to-edge system bars and icon contrast #90). The PR now merges cleanly (mergeable: true).

2. Only accessibility changes remain ✅ — I removed the CI workflow and re-checked every file. The PR now contains strictly TalkBack/accessibility improvements:

   • RecordingOverlay.kt — dynamic contentDescription, liveRegion + stateDescription
   • PermissionsScreen.kt — contentDescription on status icons, progress indicator, dialog icons
   • SettingsScreen.kt — semantics on ListItems/radio rows, localized WarningCard icon
   • ContactSelectionDialog.kt — contentDescription on search icon + contact photos
   • SponsorScreen.kt — heading semantics
   • FileNameFormatDialog.kt — input label
   • values/strings.xml — 12 a11y string resources (English only, Weblate handles translations)

Diff is now +91/−13 across 7 files, all accessibility-related. CI is verified passing.