* [Feature] Register to router with version info for PD disaggregation
Add RegisterManager for PD (Prefill-Decode) disaggregated deployment:
- All instances (Prefill/Decode) register to Router with heartbeat
- Prefill instances fetch Decode instance list from Router
- Prefill instances establish eager RDMA connections to Decode instances
- Register info includes: host_ip, port, role, version, is_paused, connected_decodes
Changes:
- Add RegisterManager class for managing PD registration and RDMA connections
- Add version field to ModelConfig for model version tracking
- Add connected_decodes to register_info for tracking connected Decode instances
- Add FD_ENABLE_PD_RDMA_EAGER_CONNECT environment variable
Test fixes:
- Add None checks for load_config in FDConfig.__init__
- Add version attribute to test mock model configs
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* refine
* remove test
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Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
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