feat(ui): session skills registry tab + per-level selectors

src/ClaudeDo.Ui/ViewModels/Modals/Settings/GeneralSettingsTabViewModel.cs

@@ -1,5 +1,8 @@
+using System.Collections.ObjectModel;
 using ClaudeDo.Data.Models;
 using ClaudeDo.Localization;
+using ClaudeDo.Ui.Services;
+using ClaudeDo.Ui.ViewModels.Agent;
 using CommunityToolkit.Mvvm.ComponentModel;
 
 namespace ClaudeDo.Ui.ViewModels.Modals.Settings;
@@ -22,6 +25,8 @@ public sealed partial class GeneralSettingsTabViewModel : ViewModelBase
     public IReadOnlyList<string> Models { get; } = ModelRegistry.Aliases;
     public IReadOnlyList<string> PermissionModes { get; } = PermissionModeRegistry.Modes;
 
+    public ObservableCollection<SelectableSkillViewModel> SessionSkills { get; } = new();
+
     public GeneralSettingsTabViewModel() { }
 
     public GeneralSettingsTabViewModel(ILocalizer localizer, Action<string> persist)
@@ -51,4 +56,20 @@ public sealed partial class GeneralSettingsTabViewModel : ViewModelBase
             return "Max parallel executions must be between 1 and 20.";
         return null;
     }
+
+    /// <summary>Loads the installed-skills checkbox list, reflecting the given selection.</summary>
+    public async Task LoadSessionSkillsAsync(IWorkerClient worker, IReadOnlyCollection<string>? selected)
+    {
+        var installed = await worker.GetSessionSkillsAsync();
+        var selectedSet = selected is null ? new HashSet<string>() : new HashSet<string>(selected);
+        SessionSkills.Clear();
+        foreach (var s in installed)
+            SessionSkills.Add(new SelectableSkillViewModel(s.Name, s.Description, selectedSet.Contains(s.Name)));
+    }
+
+    public List<string>? SelectedSessionSkillNames()
+    {
+        var names = SessionSkills.Where(s => s.IsSelected).Select(s => s.Name).ToList();
+        return names.Count == 0 ? null : names;
+    }
 }

src/ClaudeDo.Ui/ViewModels/Modals/Settings/SessionSkillsSettingsTabViewModel.cs

@@ -0,0 +1,78 @@
+using System.Collections.ObjectModel;
+using ClaudeDo.Ui.Localization;
+using ClaudeDo.Ui.Services;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+
+namespace ClaudeDo.Ui.ViewModels.Modals.Settings;
+
+public sealed partial class SessionSkillsSettingsTabViewModel : ViewModelBase
+{
+    private readonly IWorkerClient _worker;
+
+    [ObservableProperty] private string _installUrl = "";
+    [ObservableProperty] private string _statusMessage = "";
+    [ObservableProperty] private bool _isBusy;
+
+    public ObservableCollection<SessionSkillDto> Skills { get; } = new();
+
+    public SessionSkillsSettingsTabViewModel(IWorkerClient worker) => _worker = worker;
+
+    public async Task LoadAsync()
+    {
+        IsBusy = true;
+        try
+        {
+            var skills = await _worker.GetSessionSkillsAsync();
+            Skills.Clear();
+            foreach (var s in skills) Skills.Add(s);
+        }
+        finally { IsBusy = false; }
+    }
+
+    [RelayCommand]
+    private async Task InstallAsync()
+    {
+        if (string.IsNullOrWhiteSpace(InstallUrl)) return;
+        IsBusy = true; StatusMessage = "";
+        try
+        {
+            var installed = await _worker.InstallSessionSkillAsync(InstallUrl.Trim());
+            StatusMessage = Loc.T("vm.sessionSkillsTab.installed", string.Join(", ", installed));
+            InstallUrl = "";
+            await LoadAsync();
+        }
+        catch (Exception ex) { StatusMessage = Loc.T("vm.sessionSkillsTab.installFailed", ex.Message); }
+        finally { IsBusy = false; }
+    }
+
+    [RelayCommand]
+    private async Task UpdateAsync(string? sourceUrl)
+    {
+        if (string.IsNullOrWhiteSpace(sourceUrl)) return;
+        IsBusy = true; StatusMessage = "";
+        try
+        {
+            await _worker.UpdateSessionSkillAsync(sourceUrl);
+            StatusMessage = Loc.T("vm.sessionSkillsTab.updated");
+            await LoadAsync();
+        }
+        catch (Exception ex) { StatusMessage = Loc.T("vm.sessionSkillsTab.updateFailed", ex.Message); }
+        finally { IsBusy = false; }
+    }
+
+    [RelayCommand]
+    private async Task RemoveAsync(string? sourceUrl)
+    {
+        if (string.IsNullOrWhiteSpace(sourceUrl)) return;
+        IsBusy = true; StatusMessage = "";
+        try
+        {
+            await _worker.RemoveSessionSkillAsync(sourceUrl);
+            StatusMessage = Loc.T("vm.sessionSkillsTab.removed");
+            await LoadAsync();
+        }
+        catch (Exception ex) { StatusMessage = Loc.T("vm.sessionSkillsTab.removeFailed", ex.Message); }
+        finally { IsBusy = false; }
+    }
+}