Offer launch.json generation from the startup project picker

The one-time prompt is easy to miss, so the picker now ends with the
same command, plus a solution picker.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0169iPWwKHZoBTNN9qwXiwqk

src/extension.ts

@@ -23,17 +23,32 @@ async function pickStartupProject(): Promise<void> {
                 : 'No solution found in the workspace.');
         return;
     }
-    const picked = await vscode.window.showQuickPick(
-        candidates.map(project => ({
-            label: project.info.name,
-            description: vscode.workspace.asRelativePath(project.info.fsPath, false),
-            detail: project.info.platforms.length ? `Platforms: ${project.info.platforms.join(', ')}` : undefined,
-            picked: project === model.startupProject,
-            project,
-        })),
+    type Item = vscode.QuickPickItem & { project?: StartupProject; action?: () => Promise<void> };
+    const items: Item[] = candidates.map(project => ({
+        label: project.info.name,
+        description: vscode.workspace.asRelativePath(project.info.fsPath, false),
+        detail: project.info.platforms.length ? `Platforms: ${project.info.platforms.join(', ')}` : undefined,
+        picked: project === model.startupProject,
+        project,
+    }));
+    items.push(
+        { label: '', kind: vscode.QuickPickItemKind.Separator },
+        {
+            label: '$(json) Create launch.json and tasks.json entries',
+            description: 'so F5 builds with the selected configuration',
+            action: generateLaunchConfig,
+        },
+        {
+            label: '$(file-submodule) Select solution',
+            description: model.allSolutions.length > 1 ? `${model.allSolutions.length} found` : undefined,
+            action: pickSolution,
+        });
+    const picked = await vscode.window.showQuickPick(items,
         { title: `${model.activeSolution?.name}: startup project`, matchOnDescription: true });
-    if (picked) {
+    if (picked?.project) {
         await model.selectProject(picked.project);
+    } else if (picked?.action) {
+        await picked.action();
     }
 }