Function collect_deterministic_snapshot_bytes 

pub fn collect_deterministic_snapshot_bytes(
    snapshot: &NormalizedFingerprintSnapshot,
    options: &SnapshotDeterminismOptions,
) -> Result<Vec<u8>, SnapshotCollectionError>

Serialize a snapshot into deterministic JSON bytes.

The function first validates snapshot compatibility, then applies deterministic normalization rules, and finally serializes with a stable field order (provided by struct declaration order + BTreeMap keys).

Errors

Returns SnapshotCollectionError when snapshot compatibility validation fails or when JSON serialization fails.