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

README.md

@@ -77,8 +77,9 @@ still runs after this one and fills in `justMyCode`, symbol options and the cons
 
 ### F5
 
-The first time it sees a solution the extension offers to write a `launch.json` entry
-(*.NET Solution: Create launch.json and tasks.json entries* does it later):
+The first time it sees a solution the extension offers to write a `launch.json` entry.
+Later, run *.NET Solution: Create launch.json and tasks.json entries* from the command
+palette, or pick it at the bottom of the startup-project list (click the project name):
 
 ```jsonc
 {

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();
     }
 }
 

src/status.ts

@@ -72,7 +72,7 @@ export class StatusBar implements vscode.Disposable {
             `**Solution:** \`${solution.name}\` (${vscode.workspace.asRelativePath(solution.fsPath, false)})`,
             this.busy ? `\n$(loading~spin) ${this.busy}` : '',
             '',
-            'Click to change the startup project.',
+            'Click to change the startup project, or to create the launch.json / tasks.json entries.',
         ].join('  \n'));
 
         const mapped = `${active.projectConfiguration}|${active.projectPlatform}`;