Can I vibecode FeedBlitz?

Build a deliberately narrow personal substitute for FeedBlitz, not a full clone.
Use exactly this stack: Next.js 15 + TypeScript + PostgreSQL (using Prisma).
Primary job: Build an automated RSS-to-email publishing tool and subscriber database focused on content distribution via a user-supplied SMTP provider.
Start from an empty folder and create the complete working project. Make the default mode single-user and private.

Data Model:
- `Feeds`: id, url, last_polled_at, status
- `Subscribers`: id, email, status
- `Tags`: id, name
- `SubscriberTags`: subscriber_id, tag_id
- `Funnels` (Automations): id, feed_id, target_tag_id, schedule (cron expression), template_html
- `SentNewsletters`: id, funnel_id, subject, sent_at, open_count, click_count

User Journey & Screens:
1. RSS Configuration: Add blog/podcast RSS feeds. Configure the polling schedule.
2. Funnel/Automation Builder: UI to map an incoming RSS feed to an email template, select a target audience (via Tags), and set the delivery frequency (e.g., daily digest vs. immediate send).
3. Subscriber Management: View subscribers, their behavioral tags, and manually adjust their lists.
4. Reporting Dashboard: View open/click metrics for the automated newsletters.

Technical specifics:
- Implement a background worker (e.g., node-cron or BullMQ) to parse RSS feeds for new entries and automatically generate HTML emails based on predefined funnels.
- Put every secret and external credential (SMTP) in .env and provide .env.example.
- Ensure reliable bounce and unsubscribe processing to maintain list hygiene.
- Deliberately exclude these paid-product advantages: integrated monetization/ad-network tools; complex inbox activity detection for send-time optimization; resilient polling of heavily rate-limited feeds.
- Write focused unit tests for the RSS parsing to HTML generation workflow.
- Create a README with setup, architecture, and instructions for running the background scheduler locally.
- Run the tests and build before finishing, then fix errors rather than merely describing them.