Fix zarr/numcodecs version compatibility

Pin zarr to 2.14.2 and numcodecs to 0.11.0 to resolve import error

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

requirements.txt

@@ -14,7 +14,8 @@ accelerate==0.24.1
 numpy==1.24.3
 aiofiles==23.2.1
 python-dotenv==1.0.0
-zarr==2.16.1
+zarr==2.14.2
+numcodecs==0.11.0
 
 # SWE-bench support
 datasets==2.16.1