feat(tak): phase 2 protobuf support

[krital]

Summary

• implement TAK Phase 2 protobuf codec path
• wire TakExtension to construct TakProtobufCodec with CotXmlCodec and max payload limit
• add TakProtobufCodecTest covering:
  • CoT XML wrapped/decoded through protobuf path
  • binary protobuf pass-through
  • CoT synthesis from message metadata when payload is missing

Validation

• JAVA_HOME=/Users/krital/.sdkman/candidates/java/21.0.9-zulu mvn -q -Dtest=io.mapsmessaging.network.protocol.impl.tak.codec.TakProtobufCodecTest test
• JAVA_HOME=/Users/krital/.sdkman/candidates/java/21.0.9-zulu mvn -q -Dmaven.test.skip=true package

Notes

• Phase 1 is already in PR feat(tak): add phase 1 TAK extension integration #2056 (branch codex/tak-phase1).
• This PR contains only Phase 2 incremental changes on top of that branch.

[krital]

Superseded by consolidated TAK PR #2061 (codex/feat-tak). Closing phase PR to keep review in one place.