Initial commit: STR Optimization Manager MVP

Full-stack short-term rental management platform with:
- React/Vite frontend with dark theme dashboard, performance, pricing,
  reservations, experiments, and settings pages
- Fastify API server with auth, platform management, performance tracking,
  pricing, reservations, experiments, and weekly report endpoints
- Playwright-based scraper service with Airbnb adapter (login with MFA,
  performance metrics, reservations, calendar pricing, price changes)
- VRBO adapter scaffold and mock adapter for development
- PostgreSQL with Drizzle ORM, migrations, and seed scripts
- Job queue with worker for async scraping tasks
- AES-256-GCM credential encryption for platform credentials
- Session cookie persistence for scraper browser sessions
- Docker Compose for PostgreSQL database

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.env.example

@@ -0,0 +1,24 @@
+# Database
+DB_USER=str_manager
+DB_PASSWORD=changeme_strong_password
+DB_HOST=localhost
+DB_PORT=5433
+DATABASE_URL=postgresql://str_manager:changeme_strong_password@localhost:5433/str_manager
+
+# App Security
+JWT_SECRET=changeme_64_char_random_string
+ENCRYPTION_KEY=changeme_32_char_aes_key_here!!
+
+# Email (weekly report)
+SMTP_HOST=smtp.gmail.com
+SMTP_PORT=587
+SMTP_USER=you@gmail.com
+SMTP_PASS=your_app_password
+REPORT_EMAIL_TO=you@gmail.com
+
+# App login
+APP_USERNAME=admin
+APP_PASSWORD_HASH=$2b$10$placeholder_bcrypt_hash
+
+# Scraper
+SCRAPER_URL=http://localhost:3001