fix: remove getting skipped files popup

[monosoul]

This change removes getting skipped files popup.

Note on implementation: given that I don't use that plugin myself atm and don't want to spend too much time working on it, this change is 99% AI generated. I did check the implementation tho and it seems to be sane.

Fixes #67

[Copilot]

Pull Request Overview

This PR removes the "Getting Skipped Files" popup by replacing the synchronous, UI-blocking Task implementation with a cache-based approach that loads skipped worktree files asynchronously in the background.

Key changes:

• Introduced SkippedWorktreeFilesCache to manage async loading and caching of skipped worktree files
• Converted GetSkippedWorktreeFilesTask from a UI-blocking Task to a standalone suspend function
• Modified the changes view modifier to use cached data instead of triggering a blocking popup

Reviewed Changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
SkippedWorktreeFilesCache.kt	New service that handles async loading and caching of skipped worktree files
SkippedWorktreeChangesViewModifier.kt	Updated to use cache instead of ProgressManager task
GetSkippedWorktreeFilesTask.kt	Converted from Task class to standalone suspend function
ExtendedUpdateIndexTask.kt	Added cache clearing and view refresh after index updates
plugin.xml	Registered the new cache service
SkippedWorktreeFilesCacheTest.kt	New test file for cache functionality
SkippedWorktreeChangesViewModifierTest.kt	Updated tests to work with cache-based approach
GetSkippedWorktreeFilesTaskTest.kt	Updated tests for new suspend function
ExtendedUpdateIndexTaskTest.kt	Added verification of cache clearing behavior

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[Copilot]

Race condition: Multiple concurrent calls to getOrLoad() could pass the !isLoading check before isLoading is set to true, potentially launching multiple coroutines. Use an atomic boolean or synchronization mechanism to ensure thread-safe state transitions.

[codecov]

Codecov Report

❌ Patch coverage is 89.13043% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.90%. Comparing base (d434f0f) to head (744e4f1).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
...extended/changes/view/SkippedWorktreeFilesCache.kt	85.00%	3 Missing ⚠️
...x/extended/changes/view/GetSkippedWorktreeFiles.kt	93.33%	0 Missing and 1 partial ⚠️
...changes/view/SkippedWorktreeChangesViewModifier.kt	87.50%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #68      +/-   ##
==========================================
- Coverage   92.85%   90.90%   -1.95%     
==========================================
  Files          10       11       +1     
  Lines         112      132      +20     
  Branches       15       17       +2     
==========================================
+ Hits          104      120      +16     
- Misses          3        6       +3     
- Partials        5        6       +1     

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[Copilot]

Pull Request Overview

Copilot reviewed 10 out of 10 changed files in this pull request and generated 3 comments.

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