docs(worker): record the findings store and fix the git-test skip convention

tests/ClaudeDo.Worker.Tests/CLAUDE.md

@@ -27,7 +27,9 @@ viewmodel behaviour driven from Worker fakes.
 - Test classes implement `IDisposable` and create fixtures in constructor
 - Helper factory methods for entities: `MakeTask()`, `CreateListAsync()`, `SeedListAsync()`
 - Concurrency tests use `TaskCompletionSource` as gates for deterministic ordering
-- Git-dependent tests are conditionally skipped via `Skip = ...` when git is not available
+- Git-dependent tests bail out with an early `if (!GitRepoFixture.IsGitAvailable()) return;` at the top
+  of the method body — a plain `[Fact]`, **not** xUnit's `Skip = ...` and not `SkippableFact`
+  (that package is not referenced). Such tests report as passed, not skipped, when git is missing.
 
 ## Running