Refactor simplified sync class names

[MiSikora]

Task/Issue URL: https://app.asana.com/1/137249556945/project/1216103556496795/task/1216955858261380
Tech Design URL (if applicable): https://app.asana.com/1/137249556945/project/1216103556496795/task/1216509582049467
API Proposals URL(s) (if applicable): N/A

Description

Renames the classes and resources of the simplified sync setup flow so that names describe what each screen does instead of the underlying code exchange mechanism. After working with the feature for a while I have a better understanding of the structure and the flow, and these names reflect that understanding. This is a pure refactor, there are no behavior changes.

Show QR code screen:

• QrCodeActivity is now DisplayQrCodeActivity.
• QrCodeContract is now DisplayQrCodeContract.
• SyncExchangeViewModel is now DisplayQrCodeViewModel.

Read sync code screen:

• CodeExchangeActivity is now ReadSyncCodeActivity.
• CodeExchangeContract is now ReadSyncCodeContract.
• CameraScannerFragment is now ReadSyncCodeCameraFragment.
• IntroAnimationViewModel is now ReadSyncCodeCameraIntroViewModel.
• ManualCodeEntryFragment is now ReadSyncCodeManualFragment.

Shared header view:

• CodeExchangeHeaderView is now SyncPairingHeaderView.

Resources:

• Layout files, generated view bindings, background drawables, view IDs, and the styleable follow the new class names.
• Resources shared with the existing sync UI are left untouched.

Steps to test this PR

QA optional.

UI changes

N/A

---

Note

Low Risk
Rename-only refactor across sync v2 UI with manifest and theming string updates; no logic or pairing flow changes.

Overview
Renames the sync v2 simplified pairing UI so names match what each screen does (read vs show a code), not the old “code exchange” framing. No behavior changes.

Show QR: QrCodeActivity / QrCodeContract / SyncExchangeViewModel → DisplayQrCodeActivity, DisplayQrCodeContract, DisplayQrCodeViewModel.

Read code: CodeExchangeActivity / CodeExchangeContract → ReadSyncCodeActivity, ReadSyncCodeContract; camera tab pieces → ReadSyncCodeCameraFragment, ReadSyncCodeCameraIntroViewModel, ReadSyncCodeManualFragment.

Shared UI: CodeExchangeHeaderView → SyncPairingHeaderView with matching layout, styleable, and drawable names (background_read_sync_code_*).

AndroidManifest, Theming fixed-theme activity list, and SyncActivity entry (readSyncCodeLauncher / ReadSyncCodeContract) are updated to the new classes. Unit tests are renamed to follow the view models.

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[MiSikora]

• Replace ScrollView with NestedScrollView in sync settings #9424
• Simplified sync translations #9414
• Parameterize sync pixels tests #9413
• Apply correct edge to edge handling in simplified sync #9412
• Add simplified sync pixels #9401
• Clean up sync code before integrating pixels #9386
• Avoid signing out of a device when renaming it #9374
• Handle simplified sync deep linking #9373
• Handle restore on reinstall sync scenario #9368
• Simplified sync UI updates #9363
• Handle v1 exchange sync codes #9362
• Handle sync recovery basic scenario #9356
• Add syncing with another device logic and navigation #9343
• Add generic handling of v1 sync errors #9337
• Add sync with another device UI #9334
• Detect scanned QR sync codes #9333
• Handle sync code pasting #9332
• Refactor simplified sync class names #9329 👈 (View in Graphite)
• Handle sync logic on the displayed QR code page #9328
• Display sync QR code in simplified sync #9321
• Make remove device dialog destructive #9317
• Mitigate sync settings UI race condtions #9316
• develop

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Cursor Bugbot has reviewed your changes and found 1 potential issue.

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[MiSikora]

Merge activity

• Jul 30, 10:42 AM UTC: A user started a stack merge that includes this pull request via Graphite.
• Jul 30, 11:15 AM UTC: Graphite couldn't merge this pull request because a downstack PR Handle sync logic on the displayed QR code page #9328 failed to merge.
• Jul 30, 12:31 PM UTC: A user started a stack merge that includes this pull request via Graphite.
• Jul 30, 12:33 PM UTC: Graphite rebased this pull request as part of a merge.
• Jul 30, 12:40 PM UTC: @MiSikora merged this pull request with Graphite.