feat: add upscaler & bg remover (#6967)

packages/backend/server/src/plugins/copilot/providers/fal.ts

@@ -14,7 +14,7 @@ export type FalConfig = {
 };
 
 export type FalResponse = {
-  detail: Array<{ msg: string }>;
+  detail: Array<{ msg: string }> | string;
   images: Array<{ url: string }>;
 };
 
@@ -32,6 +32,8 @@ export class FalProvider
     'fast-turbo-diffusion',
     // image to image
     'lcm-sd15-i2i',
+    'clarity-upscaler',
+    'imageutils/rembg',
   ];
 
   constructor(private readonly config: FalConfig) {
@@ -87,7 +89,11 @@ export class FalProvider
     }).then(res => res.json())) as FalResponse;
 
     if (!data.images?.length) {
-      const error = data.detail?.[0]?.msg;
+      const error = Array.isArray(data.detail)
+        ? data.detail[0]?.msg
+        : typeof data.detail === 'string'
+          ? data.detail
+          : '';
       throw new Error(
         error ? `Invalid message: ${error}` : 'No images generated'
       );

packages/backend/server/src/plugins/copilot/providers/index.ts

@@ -77,6 +77,17 @@ export function registerCopilotProvider<
   });
 }
 
+export function unregisterCopilotProvider(type: CopilotProviderType) {
+  COPILOT_PROVIDER.delete(type);
+  ASSERT_CONFIG.delete(type);
+  for (const providers of PROVIDER_CAPABILITY_MAP.values()) {
+    const index = providers.indexOf(type);
+    if (index !== -1) {
+      providers.splice(index, 1);
+    }
+  }
+}
+
 /// Asserts that the config is valid for any registered providers
 export function assertProvidersConfigs(config: Config) {
   return (