Add configurable rewind support to MinArch

[Helaas]

• Implement an in-memory rewind buffer with LZ4 compression and delta encoding, including an async worker pipeline and playback cadence control.
• Add frontend options for enabling rewind, configuring buffer size (8–256 MB), interval, audio on/off, compression skip, and LZ4 acceleration; expose toggle/hold shortcuts with fast-forward interlock logic.
• Seed and clear the rewind buffer on state changes, integrate audio muting while rewinding, and add capped buffer logic with robust keyframe handling.
• Link against liblz4 and ship it in the tg5040 bundle; update PlayStation default configurations to set more performant rewind defaults.