Can I vibecode Everhour?

Build a local-first time-tracking and project management platform inspired by Everhour.
Stack: Next.js 15, TypeScript, Tailwind CSS, SQLite, and Drizzle ORM.

### Core Features to Implement:
1. **Integrated Time Tracking:**
   - Create a global start/stop timer accessible from any screen.
   - Allow manual time entry for past dates.
   - Support a Pomodoro timer mode.

2. **Project & Task Management:**
   - Build a project hierarchy (Workspaces > Projects > Tasks).
   - Allow tracking time specifically against these hierarchical items.
   - Implement a visual timeline planner to oversee workloads and plan future tasks.

3. **Budgeting & Billing:**
   - Support fixed-fee and recurring project budgets.
   - Monitor budgets in real-time, displaying alerts when approaching limits.
   - Generate client invoices directly from tracked time data.

4. **Reporting & Analytics:**
   - Create a detailed dashboard showing where time is spent across projects.
   - Analyze productivity and provide clarity on project profitability.

5. **Expense Tracking:**
   - Allow users to log business-related expenses alongside time.
   - Support optional receipt image uploads (stored locally).

### Technical Requirements:
- Make the app single-user and completely private.
- Store all data locally in SQLite.
- Do not add analytics, telemetry, or third-party accounts.
- Implement comprehensive CSV import/export for tasks, time entries, and expenses.
- Focus on excellent UI/UX with smooth state transitions, accessible forms, and keyboard shortcuts.
- Exclude live integrations with tools like Asana/Jira (use local task management instead) and real payment gateways.
- Include a README with setup and backup instructions.