Fix Prisma datasource to use DATABASE_URL environment variable

[marceloramirezz]

Problem\nThe Prisma schemas were hardcoded to use environment variable, but Railway's Postgres service provides . This caused authentication failures during migrations.\n\n## Changes\n- Updated to use instead of \n- Updated to use instead of \n\n## Result\nMigrations will now correctly authenticate with the database using the proper environment variable provided by Railway's database services.

📋 Description

🔗 Related Issue

Closes #(issue_number)

🧪 Type of Change

• 🐛 Bug fix (non-breaking change which fixes an issue)
• ✨ New feature (non-breaking change which adds functionality)
• 💥 Breaking change (fix or feature that would cause existing functionality to not work as expected)
• 📚 Documentation update
• 🔧 Refactoring (no functional changes)
• ⚡ Performance improvement
• 🧹 Code cleanup
• 🔒 Security fix

🧪 Testing

• Manual testing completed
• Functionality verified in development environment
• No breaking changes introduced
• Tested with different connection types (if applicable)

📸 Screenshots (if applicable)

✅ Checklist

• My code follows the project's style guidelines
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have manually tested my changes thoroughly
• I have verified the changes work with different scenarios
• Any dependent changes have been merged and published

📝 Additional Notes

Summary by Sourcery

Bug Fixes:

• Fix database authentication failures by switching Prisma MySQL and PostgreSQL datasources to use the DATABASE_URL environment variable.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Updates Prisma datasource configurations to read the database connection URL from the DATABASE_URL environment variable (as required by Railway) instead of a previously hardcoded/incorrect environment variable in both MySQL and PostgreSQL Prisma schemas.

File-Level Changes

Change	Details	Files
Switch Prisma datasource URL to use DATABASE_URL env var for all schemas.	Updated datasource url configuration in the MySQL Prisma schema to reference env("DATABASE_URL") instead of the old environment variable. Updated datasource url configuration in the PostgreSQL Prisma schema to reference env("DATABASE_URL") instead of the old environment variable.	prisma/mysql-schema.prisma prisma/postgresql-schema.prisma

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