PM-39888: feat: ViewModel controls Environment Selector options

[david-livefront]

🎟️ Tracking

PM-39888

📔 Objective

This PR updates the Environment Selector to allow the ViewModel to control which environments are available.

[github-actions]

🤖 Bitwarden Claude Code Review

Overall Assessment: APPROVE

Reviewed the refactor allowing the ViewModel to control which environments the EnvironmentSelector offers. The options parameter is now hoisted into LandingState and StartRegistrationState as a computed environmentTypeOptions property, and both screen callers pass it through. The change is behavior-preserving (all Environment.Type.entries are still returned) and both EnvironmentSelector call sites were updated consistently.

Code Review Details

No blocking findings.

Notes:

• The computed environmentTypeOptions property is correctly excluded from Parcelable serialization since it is a get()-only property, not a constructor field.
• Both EnvironmentSelector callers (LandingScreen, StartRegistrationScreen) were updated to supply the new required options parameter; no other call sites exist.
• The StartRegistrationContent signature change from individual parameters to a single state argument is internal (private composable) and its previews were updated accordingly.

[codecov]

Codecov Report

❌ Patch coverage is 50.00000% with 17 lines in your changes missing coverage. Please review.
✅ Project coverage is 85.28%. Comparing base (974006a) to head (fed6df1).

Files with missing lines	Patch %	Lines
...ature/startregistration/StartRegistrationScreen.kt	31.81%	14 Missing and 1 partial ⚠️
...re/startregistration/StartRegistrationViewModel.kt	80.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7135      +/-   ##
==========================================
- Coverage   86.17%   85.28%   -0.89%     
==========================================
  Files         882      928      +46     
  Lines       64344    66194    +1850     
  Branches     9580     9620      +40     
==========================================
+ Hits        55449    56455    +1006     
- Misses       5451     6304     +853     
+ Partials     3444     3435       -9     

Flag	Coverage Δ
app-data	17.17% <0.00%> (-0.42%)	⬇️
app-ui-auth-tools	18.96% <50.00%> (+0.19%)	⬆️
app-ui-platform	16.98% <0.00%> (+0.48%)	⬆️
app-ui-vault	28.14% <0.00%> (+0.62%)	⬆️
authenticator	6.15% <0.00%> (+0.01%)	⬆️
lib-core-network-bridge	4.03% <0.00%> (-0.01%)	⬇️
lib-data-ui	?

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[david-livefront]

Thanks @aj-rosado