Fix FFmpeg import: use direct import like ImageMagick

Import FFmpeg at module level instead of dynamic import. The build now
compiles cleanly without Turbopack bundler warnings.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

lib/media/wasm/wasmLoader.ts

@@ -1,9 +1,6 @@
-// Suppress Turbopack bundler warning for FFmpeg's dynamic imports
-// The @ffmpeg/ffmpeg package internally uses dynamic imports that Turbopack
-// flags as "too dynamic" but still work at runtime
-declare const globalThis: any;
-
 import type { ConverterEngine, WASMModuleState } from '@/types/media';
+import type { FFmpeg as FFmpegType } from '@ffmpeg/ffmpeg';
+import { FFmpeg } from '@ffmpeg/ffmpeg';
 import { initializeImageMagick } from '@imagemagick/magick-wasm';
 
 /**
@@ -17,23 +14,18 @@ const moduleState: WASMModuleState = {
 /**
  * Cached WASM instances
  */
-let ffmpegInstance: any = null;
+let ffmpegInstance: FFmpegType | null = null;
 let imagemagickInstance: any = null;
 
 /**
  * Load FFmpeg WASM module
  */
-export async function loadFFmpeg(): Promise<any> {
+export async function loadFFmpeg(): Promise<FFmpegType> {
   if (ffmpegInstance && moduleState.ffmpeg) {
     return ffmpegInstance;
   }
 
   try {
-    // Import FFmpeg at runtime to avoid static bundler analysis
-    // The @ffmpeg/ffmpeg package has internal dynamic imports that
-    // Turbopack cannot statically analyze, but they work fine at runtime
-    const { FFmpeg } = await import('@ffmpeg/ffmpeg');
-    
     if (!FFmpeg) {
       throw new Error('FFmpeg class not available');
     }