feat(conversation): add manual MLS migration (WPB-27446)

[MohamadJaara]

https://wearezeta.atlassian.net/browse/WPB-27446

Goal

Add a temporary manual path for testing Proteus/Mixed conversation migration to MLS during the transition phase.

Jira: WPB-27446

Changes

• reveal a confirmation dialog after five consecutive taps on the Protocol row
• allow the action only when MLS migration is enabled, the protocol is Proteus or Mixed, and the conversation team matches the self-user team
• keep the dialog open on outside taps and show migration loading, success, and failure states
• invoke the backend migration flow and include backend HTTP code and error label when available
• add concise lifecycle logs and focused unit coverage

[codecov]

Codecov Report

❌ Patch coverage is 72.28916% with 23 lines in your changes missing coverage. Please review.
✅ Project coverage is 52.52%. Comparing base (27391e0) to head (2565fb2).
⚠️ Report is 1 commits behind head on develop.

Files with missing lines	Patch %	Lines
...tions/details/GroupConversationDetailsViewModel.kt	71.79%	11 Missing and 11 partials ⚠️
...rc/main/kotlin/com/wire/android/model/Clickable.kt	0.00%	1 Missing ⚠️

❌ Your patch check has failed because the patch coverage (72.28%) is below the target coverage (80.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #5168      +/-   ##
===========================================
+ Coverage    52.46%   52.52%   +0.06%     
===========================================
  Files          740      740              
  Lines        25735    25815      +80     
  Branches      4223     4246      +23     
===========================================
+ Hits         13502    13560      +58     
- Misses       10942    10953      +11     
- Partials      1291     1302      +11     

Files with missing lines	Coverage Δ
...ations/details/options/GroupConversationOptions.kt	0.00% <ø> (ø)
...s/details/options/GroupConversationOptionsState.kt	97.36% <100.00%> (+0.22%)	⬆️
...rc/main/kotlin/com/wire/android/model/Clickable.kt	0.00% <0.00%> (ø)
...tions/details/GroupConversationDetailsViewModel.kt	83.09% <71.79%> (-5.96%)	⬇️

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[github-actions]

Test Results

2 638 tests  +9   2 638 ✅ +9   1m 24s ⏱️ -1s
  334 suites ±0       0 💤 ±0 
  334 files   ±0       0 ❌ ±0 

Results for commit 2565fb2. ± Comparison against base commit 27391e0.

♻️ This comment has been updated with latest results.

[sbakhtiarov]

I tried to follow the calls inside the MigrateConversationToMLSUseCase and it seems like not all of the branches with IO operations are executed in IO dispatcher.
I would recommend switching to IO dispatcher in the use case to call it safely from view model (main thread safety).