feat(install): link the phone app on the last screen

src/install-flow.test.ts

@@ -97,6 +97,15 @@ describe('hwip install', () => {
         expect(logs.join('\n')).toContain('Done! Restart your agents.');
     });
 
+    it('points a new user at the phone app with campaign links, after the closing line', async () => {
+        expect(await install({ key: 'ak_1' })).toBe(0);
+        const out = logs.join('\n');
+        expect(out).toContain('  Get the app: https://apps.apple.com/app/id6818053606?ct=cli-install\n');
+        expect(out).toContain('  Android:     https://play.google.com/store/apps/details?id=app.hwip&referrer=utm_source%3Dcli-install\n');
+        expect(out.indexOf('Done! Restart your agents.')).toBeLessThan(out.indexOf('Get the app:'));
+        expect(out.indexOf('Get the app:')).toBeLessThan(out.indexOf('Notifications now fire'));
+    });
+
     // C107: a config.json that is not JSON used to load as {}; the install then replaced it with the new key alone.
     it('leaves a config.json it cannot read as JSON alone, and says so before asking anything', async () => {
         const { mkdirSync, writeFileSync } = await import('node:fs');

src/installer.ts

@@ -167,6 +167,10 @@ export const closingLine = (failed: number): string => {
   return `Done, but ${steps} you: see the lines marked "-" above. Then restart your agents.`;
 };
 
+/** Where the install's last screen sends a new user for the phone app. `ct`/`utm_source` name this surface. */
+export const APP_STORE_URL = 'https://apps.apple.com/app/id6818053606?ct=cli-install';
+export const PLAY_STORE_URL = 'https://play.google.com/store/apps/details?id=app.hwip&referrer=utm_source%3Dcli-install';
+
 /** An edit that would lose a comment of the user's names the file, like every other refusal. */
 const namingFile = <T>(filePath: string, edit: () => T): T => {
   try {
@@ -881,6 +885,9 @@ export const handleInstall = async (args: Record<string, string | boolean>): Pro
 
   console.log(`\n  ${closingLine(failedSteps)}\n`);
 
+  console.log(`  Get the app: ${APP_STORE_URL}`);
+  console.log(`  Android:     ${PLAY_STORE_URL}\n`);
+
   // The single most-reported surprise: pushes are not scoped to `hwip cc`.
   // Hooks fire for every session of every configured agent, so say it here —
   // at the moment the hooks get installed — together with the volume dials.