Crate codec 

Snapshot and delta encoding/decoding for the sdec codec.

This is the main codec crate that ties together bitstream, wire, and schema to provide full snapshot and delta encoding/decoding capabilities.

Features

• Full snapshot encoding/decoding
• Delta encoding relative to a baseline
• Baseline history management
• Entity create/update/destroy operations
• Per-component and per-field change masks

Design Principles

• Correctness first - All invariants are documented and tested.
• No steady-state allocations - Uses caller-provided buffers.
• Deterministic - Same inputs produce same outputs.

Structs

EntityId

A stable entity identifier.

Limits

Limits for packet decoding.

SnapshotTick

A simulation tick number.

Enums

CodecError

Errors that can occur during snapshot/delta encoding/decoding.

Type Aliases

CodecResult

Result type for codec operations.