fix: revert @imgly npm import → CDN + ErrorBoundary + next.config cleanup

src/lib/client/bgRemover.ts

@@ -1,7 +1,14 @@
-import { removeBackground } from '@imgly/background-removal'
+const CDN_URL = 'https://cdn.jsdelivr.net/npm/@imgly/background-removal@1.7.0/dist/index.mjs'
 
-// URL CDN pour les ressources (WASM + modèles ONNX) — évite de les héberger localement
-const IMGLY_CDN = 'https://cdn.jsdelivr.net/npm/@imgly/background-removal@1.7.0/dist/'
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+let _removeBg: ((blob: Blob, opts: Record<string, unknown>) => Promise<Blob>) | null = null
+
+async function loadLib() {
+  if (_removeBg) return _removeBg
+  const mod = await import(/* webpackIgnore: true */ CDN_URL)
+  _removeBg = mod.removeBackground
+  return _removeBg!
+}
 
 export interface ProgressEvent {
   key: string
@@ -16,15 +23,15 @@ export async function removeBackgroundRaw(
   blob: Blob,
   onProgress?: (e: ProgressEvent) => void,
 ): Promise<Blob> {
-  return removeBackground(blob, {
-    publicPath: IMGLY_CDN,
+  const removeBg = await loadLib()
+  return removeBg(blob, {
     output: { format: 'image/png', type: 'foreground', quality: 1 },
     progress: (key: string, current: number, total: number) => {
       if (onProgress && total > 0) {
         onProgress({ key, percent: Math.round((current / total) * 100) })
       }
     },
-  } as Parameters<typeof removeBackground>[1])
+  })
 }
 
 /**