refactor: load WASM from local assets via postinstall script

pnpm-lock.yaml

@@ -8,6 +8,9 @@ importers:
 
   .:
     dependencies:
+      '@ffmpeg/core':
+        specifier: 0.12.6
+        version: 0.12.6
       '@ffmpeg/ffmpeg':
         specifier: ^0.12.15
         version: 0.12.15
@@ -314,6 +317,10 @@ packages:
     resolution: {integrity: sha512-43/qtrDUokr7LJqoF2c3+RInu/t4zfrpYdoSDfYyhg52rwLV6TnOvdG4fXm7IkSB3wErkcmJS9iEhjVtOSEjjA==}
     engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
 
+  '@ffmpeg/core@0.12.6':
+    resolution: {integrity: sha512-PrjWBTfGn2WVn9T7wGnzfFwChbqWeZc7tM9vvJZVRadYFUDakfzy7W0LpYC0cvvK0xT82qlBsk38lQhJ/Hps5A==}
+    engines: {node: '>=16.x'}
+
   '@ffmpeg/ffmpeg@0.12.15':
     resolution: {integrity: sha512-1C8Obr4GsN3xw+/1Ww6PFM84wSQAGsdoTuTWPOj2OizsRDLT4CXTaVjPhkw6ARyDus1B9X/L2LiXHqYYsGnRFw==}
     engines: {node: '>=18.x'}
@@ -4223,6 +4230,8 @@ snapshots:
       '@eslint/core': 0.17.0
       levn: 0.4.1
 
+  '@ffmpeg/core@0.12.6': {}
+
   '@ffmpeg/ffmpeg@0.12.15':
     dependencies:
       '@ffmpeg/types': 0.12.4