Migrate omsorgapp to browser SPA, add Docker/CI build setup

- omsorgapp: drop Electron, run as a plain Vite/React browser app; refresh
  token moves to an HttpOnly cookie (omsorgCore), CORS added for the new
  browser origin, document download/preview switched to Blob-based browser
  APIs.
- Add Dockerfiles for omsorgCore, omsorgapp, and omsorgWeb, a docker-compose.yml
  wiring Postgres/MySQL/all three apps together, and a Gitea Actions workflow
  that builds and pushes images to the repo's container registry on push to
  main and on version tags.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

omsorgWeb/mitarbeiter-app/api-client-php/docs/Model/FacilityResponse.md

@@ -8,6 +8,7 @@ Name | Type | Description | Notes
 **name** | **string** |  | [optional]
 **crm_status** | **string** |  | [optional]
 **facility_type** | **string** |  | [optional]
+**website** | **string** |  | [optional]
 **street** | **string** |  | [optional]
 **postal_code** | **string** |  | [optional]
 **city** | **string** |  | [optional]
@@ -16,5 +17,17 @@ Name | Type | Description | Notes
 **billing_postal_code** | **string** |  | [optional]
 **billing_city** | **string** |  | [optional]
 **billing_country** | **string** |  | [optional]
+**follow_up_due_date** | **\DateTime** |  | [optional]
+**billing_rate** | **float** |  | [optional]
+**night_surcharge_percent** | **float** |  | [optional]
+**saturday_surcharge_percent** | **float** |  | [optional]
+**sunday_surcharge_percent** | **float** |  | [optional]
+**holiday_surcharge_percent** | **float** |  | [optional]
+**travel_cost_rate** | **float** |  | [optional]
+**minimum_hours** | **float** |  | [optional]
+**break_policy** | **string** |  | [optional]
+**billing_interval** | **string** |  | [optional]
+**payment_term_days** | **int** |  | [optional]
+**individual_agreements** | **string** |  | [optional]
 
 [[Back to Model list]](../../README.md#models) [[Back to API list]](../../README.md#endpoints) [[Back to README]](../../README.md)