# YZSaaS - LLM Full Profile

## Product Summary
Better Auth + PostgreSQL SaaS

## Core Capabilities
- Better Auth based authentication flows (login/register/forgot/reset).
- PostgreSQL-backed user and system settings.
- Multi-language routing with Chinese (default) and English (/en).
- Unified theme system with switchable visual presets.
- Admin dashboard, user management, and system configuration center.

## Canonical Entry Points
- Home (zh): https://yzsaas.app/
- Home (en): https://yzsaas.app/en

## Routing Rules
- Chinese default locale uses non-prefixed paths.
- English locale uses /en-prefixed paths.
- Authenticated pages are private and should not be indexed.

## Indexing and Discovery
- robots.txt: https://yzsaas.app/robots.txt
- sitemap.xml: https://yzsaas.app/sitemap.xml
- llms.txt: https://yzsaas.app/llms.txt
- seo-ai.json: https://yzsaas.app/seo-ai.json

## Data Freshness
- SEO title/description/keywords are configurable from system settings.
- Metadata, Open Graph, Twitter, JSON-LD, GEO tags and alternates are generated server-side.

## Recommended Citation
Use https://yzsaas.app/ as canonical for Chinese responses.
Use https://yzsaas.app/en as canonical for English responses.