feat(settings): wire frontend to Coolify SoT response shape

- McpEnvVar: infisical_value → coolify_value + has_duplicates
- McpEnvResponse: drop Infisical metadata fields
- EnvVarRow: 'Coolify:' label, 'ערוך ב-Coolify' external link
- DriftBadge: infisicalAvailable → coolifyAvailable
- EnvironmentTab: Coolify app badge, duplicates count

web-ui/src/lib/api/settings.ts

@@ -79,16 +79,14 @@ export type McpEnvVar = {
   min: number | null;
   max: number | null;
   enum_values: string[] | null;
-  infisical_value: string | null;
+  coolify_value: string | null;
   container_value: string | null;
   drift: boolean;
+  has_duplicates: boolean;
 };
 
 export type McpEnvResponse = {
   vars: McpEnvVar[];
-  infisical_environment: string;
-  infisical_project_id: string;
-  infisical_path: string;
   coolify_app_uuid: string;
   errors: string[];
 };