fix(worker): route WeekReportService permission-mode through PermissionModeResolver

Closes the last unrouted --permission-mode call site: haiku default models were
hardcoding raw "auto", which the CLI silently downgrades to interactive "default"
and hangs the report generation. Also drops the author's personal C:\Private
default exclude in favor of an empty default (config stays via ReportExcludedPaths).

tests/ClaudeDo.Worker.Tests/Report/WeekReportServiceTests.cs

@@ -26,9 +26,10 @@ public class WeekReportServiceTests : IDisposable
     private sealed class FakeClaude : IClaudeProcess
     {
         public int Calls;
+        public IReadOnlyList<string>? LastArgs;
         public RunResult Next = new() { ExitCode = 0, ResultMarkdown = "## Bericht" };
         public Task<RunResult> RunAsync(IReadOnlyList<string> args, string prompt, string wd, Func<string, Task> onLine, CancellationToken ct)
-        { Calls++; return Task.FromResult(Next); }
+        { Calls++; LastArgs = args; return Task.FromResult(Next); }
     }
 
     private WeekReportService Make(FakeReader reader, FakeClaude claude) =>
@@ -65,6 +66,32 @@ public class WeekReportServiceTests : IDisposable
         Assert.Equal(md, await svc.GetStoredAsync(Start, End));
     }
 
+    [Fact]
+    public async Task HaikuDefaultModel_RoutesPermissionModeThroughResolver()
+    {
+        using (var ctx = _db.CreateContext())
+        {
+            var repo = new AppSettingsRepository(ctx);
+            var settings = await repo.GetAsync();
+            settings.DefaultModel = "haiku";
+            await repo.UpdateAsync(settings);
+        }
+
+        var activityRepo = new RepoActivity { RepoPath = @"C:\Dev\App" };
+        var day = new DayActivity { Date = new DateOnly(2026, 6, 1) };
+        day.Prompts.Add("x");
+        activityRepo.Days.Add(day);
+        var claude = new FakeClaude();
+        var svc = Make(new FakeReader { Result = new[] { activityRepo } }, claude);
+
+        await svc.GenerateAsync(Start, End);
+
+        Assert.NotNull(claude.LastArgs);
+        var modeIndex = claude.LastArgs!.ToList().IndexOf("--permission-mode") + 1;
+        Assert.Equal(PermissionModeResolver.Resolve("haiku", "auto"), claude.LastArgs[modeIndex]);
+        Assert.NotEqual("auto", claude.LastArgs[modeIndex]);
+    }
+
     [Fact]
     public async Task ClaudeFailure_Throws_AndDoesNotStore()
     {