refactor: move paging code to common [WPB-25633]

[MohamadJaara]

https://wearezeta.atlassian.net/browse/WPB-25633

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What's new in this PR?

Issues

• Kalium's commonMain depended on the app.cash.paging multiplatform shim, which was archived and deprecated by Cash App in September 2025.
• The paging use cases and MessageScope / ConversationScope extension properties were stuck in androidMain, so iOS consumers of Kalium had no way to call getPaginatedFlowOfMessagesByConversation, getPaginatedFlowOfConversationDetailsWithEventsBySearchQuery, etc.

Causes (Optional)

androidx.paging was Android-only when Kalium adopted paging, so the app.cash.paging shim was the only KMP option. Since paging-common 3.3.0 it ships native KMP targets including iOS, and as of 3.5.0 covers every type Kalium uses. The shim is no longer needed.

Solutions

• Bumped androidx-paging3 to 3.5.0 in both Kalium and the parent wire-android version catalogs; added a paging-common (androidx.paging:paging-common) alias.
• Added paging-common to commonMain in :data:persistence, :logic, :domain:cells, :test:benchmarks (exposed as api(...) where the types appear in public signatures).
• Replaced every app.cash.paging.* import with androidx.paging.*. Cash App's flattened class names were collapsed to AndroidX's nested form:
  • PagingSourceLoadResultPage → PagingSource.LoadResult.Page
  • PagingSourceLoadResultError → PagingSource.LoadResult.Error
  • PagingSourceLoadParamsRefresh / Append → PagingSource.LoadParams.Refresh / Append
• Dropped the UNCHECKED_CAST helpers in ConversationPagingSourceTest that worked around the shim treating LoadParams.Refresh/Append as unrelated types — AndroidX models them as real subtypes.
• Moved the paging use cases and scope extensions from logic/src/androidMain to logic/src/commonMain via git mv so history is preserved:
  • feature/message/: GetPaginatedFlowOfMessagesByConversationUseCase, GetPaginatedFlowOfMessagesBySearchQueryAndConversationIdUseCase, FetchOlderNomadMessagesByConversationUseCase, MessageScopeExtensions
  • feature/asset/: GetPaginatedFlowOfAssetMessageByConversationIdUseCase, ObservePaginatedAssetImageMessages
  • feature/conversation/: GetPaginatedFlowOfConversationDetailsWithEventsBySearchQueryUseCase, ConversationScopeExtensions

SQLDelight's androidx-paging3-extensions already returns androidx.paging.PagingSource in 2.2.1, so no QueryPagingSource replacement was needed.

Dependencies (Optional)

Needs releases with:

• N/A — no companion PRs. The parent wire-android androidx-paging3 / androidx-paging3Compose version-refs were bumped to 3.5.0 in the same change.

Testing

Test Coverage (Optional)

• Existing paging tests (MessageExtensionsTest, ConversationExtensionsTest, MessageRepositoryExtensionsTest, ConversationRepositoryExtensionsTest, ConversationPagingSourceTest, GetCellConversationsPagedUseCaseTest, GetPaginatedFlowOfConversationDetailsWithEventsBySearchQueryUseCaseTest) were updated to the AndroidX API and continue to assert the same behaviour. No new tests were added because no new behaviour was introduced.

How to Test

Build verification (run from kalium/):

./gradlew :data:persistence:compileKotlinMetadata :logic:compileKotlinMetadata \
          :domain:cells:compileKotlinMetadata :test:benchmarks:compileKotlinMetadata
./gradlew :data:persistence:compileKotlinIosSimulatorArm64 \
          :logic:compileKotlinIosSimulatorArm64 \
          :domain:cells:compileKotlinIosSimulatorArm64 \
          -PUSE_UNIFIED_CORE_CRYPTO=true
./gradlew :logic:compileAndroidHostTest
./gradlew detekt
./gradlew :data:persistence:jvmTest :logic:jvmTest :domain:cells:jvmTest \
          -Djava.library.path=./native/libs

Manual smoke (parent wire-android staging-debug):

1. Install apk.
2. Open a conversation with several hundred messages — scroll up; verify older messages page in without duplication or jank.
3. From the conversation list, type a search query — verify search results paginate as you scroll.
4. Open the Files / Cells tab and scroll a folder with > 30 items — verify subsequent pages load.

[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

See analysis details on SonarQube Cloud

[github-actions]

Test Results

0 tests   - 4 890   0 ✅  - 4 775   0s ⏱️ - 2m 44s
0 suites  -   803   0 💤  -   115 
0 files    -   803   0 ❌ ±    0 

Results for commit 7e83f7e. ± Comparison against base commit de33718.

♻️ This comment has been updated with latest results.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 33.33333% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 61.54%. Comparing base (de33718) to head (7e83f7e).

Files with missing lines	Patch %	Lines
...ire/kalium/cells/domain/paging/FilePagingSource.kt	0.00%	3 Missing ⚠️
...um/benchmarks/persistence/BenchmarkPagingAccess.kt	0.00%	2 Missing ⚠️
...benchmarks/persistence/MessageReadBenchmarkData.kt	0.00%	1 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             develop    #4133      +/-   ##
=============================================
- Coverage      61.60%   61.54%   -0.06%     
  Complexity      4023     4023              
=============================================
  Files           2057     2065       +8     
  Lines          67321    67384      +63     
  Branches        6635     6636       +1     
=============================================
- Hits           41475    41474       -1     
- Misses         23202    23267      +65     
+ Partials        2644     2643       -1     

Files with missing lines	Coverage Δ
...istence/dao/conversation/ConversationExtensions.kt	89.09% <ø> (ø)
...wire/kalium/persistence/dao/message/KaliumPager.kt	100.00% <ø> (ø)
...alium/persistence/dao/message/MessageExtensions.kt	46.15% <ø> (ø)
...um/cells/domain/paging/ConversationPagingSource.kt	100.00% <100.00%> (ø)
...domain/usecase/GetCellConversationsPagedUseCase.kt	85.71% <ø> (ø)
...m/cells/domain/usecase/GetCellFilesPagedUseCase.kt	0.00% <ø> (ø)
...a/conversation/ConversationRepositoryExtensions.kt	90.90% <ø> (ø)
.../logic/data/message/MessageRepositoryExtensions.kt	39.53% <ø> (ø)
...inatedFlowOfAssetMessageByConversationIdUseCase.kt	0.00% <ø> (ø)
...eature/asset/ObservePaginatedAssetImageMessages.kt	0.00% <ø> (ø)
... and 10 more

... and 1 file with indirect coverage changes

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[github-actions]

Bencher Report

Branch	mo/refactor/move-pagging-to-common
Testbed	ubuntu-latest

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Benchmark	Latency	microseconds (µs)
com.wire.kalium.benchmarks.logic.CoreLogicBenchmark.createObjectInFiles	📈 view plot ⚠️ NO THRESHOLD	929.85 µs
com.wire.kalium.benchmarks.logic.CoreLogicBenchmark.createObjectInMemory	📈 view plot ⚠️ NO THRESHOLD	590,622.22 µs
com.wire.kalium.benchmarks.persistence.MessageReadBenchmark.inboxPagingDeepPageBenchmark	📈 view plot ⚠️ NO THRESHOLD	131,140.86 µs
com.wire.kalium.benchmarks.persistence.MessageReadBenchmark.inboxPagingFirstPageBenchmark	📈 view plot ⚠️ NO THRESHOLD	127,122.48 µs
com.wire.kalium.benchmarks.persistence.MessageReadBenchmark.localMarkAsReadBenchmark	📈 view plot ⚠️ NO THRESHOLD	3,410.85 µs
com.wire.kalium.benchmarks.persistence.MessageReadBenchmark.messagePagingDeepPageBenchmark	📈 view plot ⚠️ NO THRESHOLD	26,527.24 µs
com.wire.kalium.benchmarks.persistence.MessageReadBenchmark.messagePagingFirstPageBenchmark	📈 view plot ⚠️ NO THRESHOLD	11,373.53 µs
com.wire.kalium.benchmarks.persistence.MessagesNoPragmaTuneBenchmark.messageInsertionBenchmark	📈 view plot ⚠️ NO THRESHOLD	1,356,288.39 µs
com.wire.kalium.benchmarks.persistence.MessagesNoPragmaTuneBenchmark.queryMessagesBenchmark	📈 view plot ⚠️ NO THRESHOLD	21,713.24 µs

🐰 View full continuous benchmarking report in Bencher