Implement incremental LOI sync

[andreia-ferreira]

Fixes #3867

FCMs now carry deleted and loiId, which we apply straight as a local delete rather than discovering it through a full read. That's only a shortcut, so before each incremental sync we compare the server's LOI count against the local one and fall back to a full read if needed.

A full read still happens in the following cases:

• the survey has never been synced
• the server holds fewer LOIs than we expect, which means a delete happened and a FCM was lost or collapsed
• the survey's data visibility changed, since that changes which LOIs we should hold
• the last full read was over 7 days ago, as a catch-all

The count operation used to detect delete cases bills 1 read per 1K LOIs so it is lightweight, but soft deletion on the server side should be a future improvement for this implementation.

@shobhitagarwal1612 PTAL?

[codecov]

Codecov Report

❌ Patch coverage is 96.34146% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 69.99%. Comparing base (35cad76) to head (eb9381e).

Files with missing lines	Patch %	Lines
...android/repository/LocationOfInterestRepository.kt	90.62%	0 Missing and 3 partials ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #3918      +/-   ##
============================================
+ Coverage     69.75%   69.99%   +0.24%     
- Complexity     2009     2034      +25     
============================================
  Files           422      424       +2     
  Lines         11594    11648      +54     
  Branches       1511     1522      +11     
============================================
+ Hits           8087     8153      +66     
+ Misses         2737     2722      -15     
- Partials        770      773       +3     

Files with missing lines	Coverage Δ
...a/local/room/stores/RoomLocationOfInterestStore.kt	93.10% <100.00%> (+0.94%)	⬆️
...data/local/room/stores/RoomSurveySyncStateStore.kt	100.00% <100.00%> (ø)
...d/data/remote/firebase/FirebaseMessagingService.kt	100.00% <100.00%> (ø)
...a/remote/firebase/schema/LoiCollectionReference.kt	100.00% <100.00%> (ø)
...undplatform/android/repository/SurveyRepository.kt	84.00% <100.00%> (+4.00%)	⬆️
.../org/groundplatform/domain/model/SurveySyncMode.kt	100.00% <100.00%> (ø)
...atform/domain/usecases/survey/SyncSurveyUseCase.kt	100.00% <100.00%> (ø)
...android/repository/LocationOfInterestRepository.kt	68.51% <90.62%> (+3.25%)	⬆️

... and 3 files with indirect coverage changes

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[shobhitagarwal1612]

Can we break this PR into 2 parts? First introduces the necessary room tables, daos, etc. Second one with the rest of the changes?

[andreia-ferreira]

done! This PR is ready for review now that most of the Room changes have been merged