Add Bedrock 1.26.30 protocol support

[Miroshka000]

Changes Powered By Codex

• Bumps the AllayMC Bedrock protocol dependency to 1.26.20-R4-SNAPSHOT and updates RakNet to the matching build.
• Adds Waterdog protocol entries for Bedrock 1.26.20 (v975) and 1.26.30 (v1001).
• Keeps the new protocol packets in the retained codec set, including PrimitiveShapesPacket.
• Rebuilds login payloads with the current Bedrock auth split: certificate chain for clients before 1.26.20, token payload for newer clients.
• Preserves the existing NetEase login data path.
• Rewrites attached entity ids inside primitive shapes so proxy entity id mapping still applies to debug shape traffic.

Why

1.26.20 changed the login payload layout. A version-only bump lets the client pass protocol selection but can break downstream login forwarding. The primitive shape packet also carries attached entity ids, so the proxy has to rewrite those ids when player ids differ between upstream and downstream.

Checks

• ./gradlew.bat build

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Already implemented xd