fix(security): 添加VITE_PAYMENT_URL环境变量配置

.qoder/skills/understand/languages/sql.md

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+# SQL Language Prompt Snippet
+
+## Key Concepts
+
+- **DDL (Data Definition)**: `CREATE TABLE`, `ALTER TABLE`, `DROP TABLE` for schema management
+- **DML (Data Manipulation)**: `SELECT`, `INSERT`, `UPDATE`, `DELETE` for data operations
+- **Normalization**: Organizing tables to reduce redundancy through 1NF, 2NF, 3NF relationships
+- **Foreign Keys**: `REFERENCES` constraints enforcing referential integrity between tables
+- **Indexes**: `CREATE INDEX` for query performance optimization on frequently queried columns
+- **Migrations**: Numbered, sequential schema changes applied in order for version control
+- **Transactions**: `BEGIN`/`COMMIT`/`ROLLBACK` for atomic multi-statement operations
+- **Views**: Named queries (`CREATE VIEW`) providing virtual tables for complex joins
+- **Stored Procedures**: Server-side functions for encapsulating business logic in the database
+- **Constraints**: `NOT NULL`, `UNIQUE`, `CHECK`, `DEFAULT` for data integrity rules
+
+## Notable File Patterns
+
+- `migrations/*.sql` — Numbered migration files (e.g., `001_create_users.sql`, `002_add_orders.sql`)
+- `schema.sql` — Full database schema definition (often generated from migrations)
+- `seeds/*.sql` — Seed data for development and testing environments
+- `*.up.sql` / `*.down.sql` — Reversible migration pairs (up applies, down reverts)
+- `init.sql` — Database initialization script for Docker or fresh setup
+- `procedures/*.sql` — Stored procedure definitions
+
+## Edge Patterns
+
+- SQL migration files `migrates` the tables they create or alter
+- Schema definition files `defines_schema` for the ORM models or data layer code that reads them
+- Table definitions create implicit `related` edges between tables connected by foreign keys
+- Seed files `depends_on` the migration files that create the tables they populate
+
+## Summary Style
+
+> "Database migration creating the users table with email, name, and authentication columns."
+> "Schema definition with N tables covering user management, orders, and payment processing."
+> "Seed data populating N tables with development fixtures for testing."