Add PayDunya payment provider integration

- Implemented PayDunya payment provider with necessary models, controllers, and views.
- Added configuration files for Docker and Odoo setup.
- Included .gitignore for Python and Odoo specific files.

addons/payment_paydunya/models/payment_provider.py

@@ -0,0 +1,32 @@
+import logging
+from odoo import models, fields
+
+_logger = logging.getLogger(__name__)
+
+
+class PaymentProvider(models.Model):
+    _inherit = 'payment.provider'
+
+    # Override code field to add paydunya option
+    code = fields.Selection(
+        selection_add=[('paydunya', 'PayDunya')],
+        ondelete={'paydunya': 'cascade'}
+    )
+
+    # PayDunya specific credentials
+    paydunya_master_key = fields.Char('PayDunya Master Key')
+    paydunya_public_key = fields.Char('PayDunya Public Key')
+    paydunya_private_key = fields.Char('PayDunya Private Key')
+    paydunya_token = fields.Char('PayDunya Token')
+    environment = fields.Selection([
+        ('sandbox', 'Sandbox'),
+        ('production', 'Production')
+    ], string='Environment', default='sandbox')
+
+    def _get_paydunya_api_base(self):
+        """Return the correct API base URL for PayDunya based on environment."""
+        self.ensure_one()
+        if self.environment == 'production':
+            return 'https://app.paydunya.com/api/v1'
+        return 'https://app.paydunya.com/sandbox-api/v1'
+