Refactor ToolCard event types and introduce ToolCardPresenter interface

[frett]

Summary

• Rename ToolCard.State/Event to ToolCard.UiState/UiEvent for consistency with Circuit conventions
• Extract ToolCardPresenter interface and replace Mockposable mocks with FakeToolCardPresenter in tests
• Move ToolCardPresenter.UiState/UiEvent to be nested on the ToolCardPresenter interface
• Introduce ToolCardEvent sealed sub-interface to separate card-level events (Click, OpenTool, OpenToolDetails) from presenter-level events (PinTool, UnpinTool)

Test plan

• Existing unit tests pass (./gradlew :app:testProductionDebugUnitTest)
• ktlint passes (./gradlew :build-logic:ktlintCheck ktlintCheck)
• Tool cards open tools and tool details correctly
• Pin/unpin actions still work on tool cards

🤖 Generated with Claude Code

[codecov]

Codecov Report

❌ Patch coverage is 84.84848% with 25 lines in your changes missing coverage. Please review.
✅ Project coverage is 51.52%. Comparing base (1536e64) to head (f437d3a).

Files with missing lines	Patch %	Lines
.../cru/godtools/ui/tools/DefaultToolCardPresenter.kt	92.30%	0 Missing and 7 partials ⚠️
.../cru/godtools/ui/dashboard/tools/ToolsPresenter.kt	40.00%	4 Missing and 2 partials ⚠️
.../godtools/ui/dashboard/lessons/LessonsPresenter.kt	60.00%	1 Missing and 1 partial ⚠️
...in/org/cru/godtools/ui/tools/ToolCardComponents.kt	33.33%	0 Missing and 2 partials ⚠️
...odtools/ui/dashboard/home/AllFavoritesPresenter.kt	80.00%	0 Missing and 1 partial ⚠️
...rg/cru/godtools/ui/dashboard/home/HomePresenter.kt	87.50%	0 Missing and 1 partial ⚠️
...org/cru/godtools/ui/dashboard/tools/ToolsLayout.kt	0.00%	0 Missing and 1 partial ⚠️
...ru/godtools/ui/tooldetails/ToolDetailsPresenter.kt	50.00%	0 Missing and 1 partial ⚠️
...kotlin/org/cru/godtools/ui/tools/FavoriteAction.kt	75.00%	0 Missing and 1 partial ⚠️
...kotlin/org/cru/godtools/ui/tools/SquareToolCard.kt	66.66%	0 Missing and 1 partial ⚠️
... and 2 more

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #4410      +/-   ##
===========================================
+ Coverage    51.47%   51.52%   +0.05%     
===========================================
  Files          449      451       +2     
  Lines        11992    11976      -16     
  Branches      2086     2066      -20     
===========================================
- Hits          6173     6171       -2     
+ Misses        5203     5194       -9     
+ Partials       616      611       -5     

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