feat: hide authorizer for rental orders, auto-set sale type

Rental orders no longer show the "Authorizer Required?" question or
the Authorizer field. The sale type is automatically set to 'Rentals'
when creating or confirming a rental order. Validation logic also
skips authorizer checks for rental sale type.

Made-with: Cursor

fusion_rental/models/res_config_settings.py

@@ -17,3 +17,43 @@ class ResConfigSettings(models.TransientModel):
         help="Number of days to hold the security deposit after pickup before "
              "processing the refund. Default is 3 days.",
     )
+    rental_google_maps_api_key = fields.Char(
+        string="Google Maps API Key",
+        config_parameter='fusion_rental.google_maps_api_key',
+        help="API key for Google Places address autocomplete on the rental "
+             "agreement form. If Fusion Claims is installed, its API key is "
+             "used automatically and this field can be left blank.",
+    )
+
+    rental_marketing_email_pct = fields.Integer(
+        string="Marketing Email Timing (%)",
+        config_parameter='fusion_rental.marketing_email_pct',
+        default=23,
+        help="Percentage of rental period after which the purchase marketing "
+             "email is sent. Default 23% (7 days on a 30-day rental). "
+             "Minimum effective offset is 1 day.",
+    )
+    rental_renewal_reminder_pct = fields.Integer(
+        string="Renewal Reminder Timing (%)",
+        config_parameter='fusion_rental.renewal_reminder_pct',
+        default=10,
+        help="Percentage of rental period before renewal date at which the "
+             "reminder is sent. Default 10% (3 days on a 30-day rental). "
+             "Minimum effective offset is 1 day.",
+    )
+    rental_short_term_threshold_days = fields.Integer(
+        string="Short-Term Threshold (Days)",
+        config_parameter='fusion_rental.short_term_threshold_days',
+        default=3,
+        help="Rentals shorter than this duration (in days) are treated as "
+             "short-term. Auto-renewal is delayed until the return window "
+             "plus grace period has passed.",
+    )
+    rental_short_term_grace_hours = fields.Integer(
+        string="Short-Term Grace Period (Hours)",
+        config_parameter='fusion_rental.short_term_grace_hours',
+        default=1,
+        help="Hours after the scheduled return time before auto-renewal "
+             "kicks in for short-term rentals. Gives the customer time to "
+             "return without being charged.",
+    )