fix(models): replace postgresql.UUID in 6 remaining model files (#2533)

[mrveiss]

Summary

• Splits from sqlalchemy.dialects.postgresql import JSONB, UUID into separate imports
• Keeps JSONB from postgresql (legitimately dialect-specific)
• Moves UUID to from sqlalchemy.types import Uuid (dialect-agnostic)
• Completes the migration started in PR fix(models): replace postgresql.UUID with database-agnostic UUID (#2495) #2532

Files Changed

• user_management/models/user.py — 2 columns
• user_management/models/audit.py — 4 columns
• user_management/models/organization.py — 1 column
• user_management/models/api_key.py — 4 columns
• user_management/models/team.py — 4 columns
• user_management/models/sso.py — 5 columns

Closes #2533

Test plan

• Zero postgresql.UUID remaining in model files (excluding migrations)
• All files pass Python AST parse
• Backend starts without import errors

[github-actions]

⚠️ SSOT Configuration Compliance: Violations Found

Metric	Count
Total Violations	2
SSOT Violations (high priority)	1
Other Violations	1

⚠️ 1 values have SSOT config equivalents!

These should be replaced with SSOT config imports:

Python:

from src.config.ssot_config import config
# Use: config.vm.main, config.port.backend, config.backend_url

TypeScript:

import config from '@/config/ssot-config'
// Use: config.vm.main, config.port.backend, config.backendUrl

📖 See SSOT_CONFIG_GUIDE.md for documentation.