fix(cli): populate required parameters when creating services in wizard

[dviejokfs]

Summary

• Fixed createNewServiceOfType() in the setup wizard sending empty parameters: {}, which caused PostgreSQL and MongoDB service creation to fail with 'database' is required validation errors
• Added automatic parameter population: fetches the parameter schema from the API, discovers required fields, and auto-generates sensible defaults (database and username derived from the sanitized service name)
• Added retry logic: if service creation fails, the user is prompted to retry instead of silently continuing the wizard with no service attached

Details

Root cause: The wizard's createNewServiceOfType() always sent parameters: {}. The backend (PostgresParameterStrategy::validate_for_creation) requires database and username for PostgreSQL (and MongoDB). Redis and S3 don't require any parameters.

Fix approach:

1. Fetch GET /external-services/types/{service_type}/parameters to get the JSON Schema
2. Extract the required array from the schema
3. Auto-generate values: database and username are derived from the service name (e.g., postgres-mlqhtf4m → postgres_mlqhtf4m)
4. Non-required fields (password, port, docker_image) are left to the backend's auto_generate_missing()
5. On failure, prompt user to retry (up to 2 attempts) instead of silently returning null

Files changed: apps/temps-cli/src/lib/service-setup.ts