fix: keep installed binaries on full reset (#2085)

src/Netclaw.Cli.Tests/Tui/InitExistingInstallPageTests.cs

@@ -42,7 +42,7 @@ public async Task ProgressScreen_RendersQueuedUpdates_AndOnlyCtrlQExits()
             (_, _) => Task.FromResult(new DaemonResult(true, "Daemon stopped.")),
             path =>
             {
-                if (path == _paths.BasePath)
+                if (path == _paths.ConfigDirectory)
                 {
                     deleteStarted.TrySetResult();
                     releaseDelete.Task.GetAwaiter().GetResult();

src/Netclaw.Cli.Tests/Tui/InitExistingInstallViewModelTests.cs

@@ -103,6 +103,9 @@ public async Task FullReset_AfterBothConfirmations_DeletesEverything()
     {
         File.WriteAllText(_paths.NetclawConfigPath, "{}");
         File.WriteAllText(_paths.SqliteDbPath, "db");
+        // bin/ holds the installed binaries; a full reset must purge data but keep it.
+        var binaryPath = Path.Combine(_paths.BinDirectory, "netclaw");
+        File.WriteAllText(binaryPath, "binary");
 
         var vm = Create();
         string? route = null;
@@ -113,7 +116,9 @@ public async Task FullReset_AfterBothConfirmations_DeletesEverything()
         Select(vm, 1); // Yes → perform
         await WaitForProgressAsync(vm, 3);
 
-        Assert.False(Directory.Exists(_paths.BasePath));
+        Assert.False(Directory.Exists(_paths.ConfigDirectory), "Config should be purged.");
+        Assert.False(File.Exists(_paths.SqliteDbPath), "Memory db should be purged.");
+        Assert.True(File.Exists(binaryPath), "Installed binaries in bin/ must survive a full reset.");
         await CompleteResetAsync(vm);
         Assert.Equal(InitExistingInstallViewModel.WizardRoute, route);
     }
@@ -292,7 +297,7 @@ public async Task Dispose_WhileDeleteIsRunning_CancelsCompletionNavigation()
         var releaseDelete = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously);
         var vm = Create(DaemonStopped, path =>
         {
-            if (path == _paths.BasePath)
+            if (path == _paths.ConfigDirectory)
             {
                 deleteStarted.TrySetResult();
                 releaseDelete.Task.GetAwaiter().GetResult();
@@ -350,7 +355,7 @@ public async Task ResetFailure_AfterBlockedQuit_ClearsQuitDisabledStatus()
         var releaseDelete = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously);
         var vm = Create(DaemonStopped, path =>
         {
-            if (path == _paths.BasePath)
+            if (path == _paths.ConfigDirectory)
             {
                 deleteStarted.TrySetResult();
                 releaseDelete.Task.GetAwaiter().GetResult();

src/Netclaw.Cli/Tui/InitExistingInstallViewModel.cs

@@ -236,7 +236,19 @@ private async Task RunResetAsync(CancellationToken ct)
 
             if (_scope == ResetScopeKind.Full)
             {
-                _deleteDirectory(_paths.BasePath);
+                // Purge everything under BasePath except bin/ — the installed binaries
+                // live there and deleting them would brick the CLI mid-reset.
+                foreach (var entry in Directory.GetDirectories(_paths.BasePath))
+                {
+                    var name = Path.GetFileName(entry);
+                    if (string.Equals(name, "bin", StringComparison.OrdinalIgnoreCase))
+                        continue;
+
+                    _deleteDirectory(entry);
+                }
+
+                foreach (var file in Directory.GetFiles(_paths.BasePath))
+                    File.Delete(file);
             }
             else
             {