RecursionError when loading GLB file with deeply nested JSON in Mesh feature

[BeyondBirthday07]

Description

Loading a GLB file with deeply nested JSON chunk causes a RecursionError, crashing the application.

Step to Reproduce

from datasets import Dataset, Mesh
import tempfile, os, struct

def make_malicious_glb(depth=5000):
    json_chunk = (b'{"a":' * depth + b'1' + b'}' * depth)
    magic = b'glTF'
    version = struct.pack('<I', 2)
    json_len = struct.pack('<I', len(json_chunk))
    json_type = struct.pack('<I', 0x4E4F534A)
    total_len = 12 + 8 + len(json_chunk)
    length = struct.pack('<I', total_len)
    return magic + version + length + json_len + json_type + json_chunk

glb_bytes = make_malicious_glb(depth=5000)

with tempfile.TemporaryDirectory() as tmpdir:
    fpath = os.path.join(tmpdir, 'test.glb')
    with open(fpath, 'wb') as f:
        f.write(glb_bytes)
    
    ds = Dataset.from_dict({'mesh': [fpath]}).cast_column('mesh', Mesh())
    result = ds[0]['mesh']

Expected: Proper error message
Actual: RecursionError crash

Suggested Fix

Catch RecursionError in Mesh.decode_example() and raise ValueError instead.