Add Room/Game Server Protocol documentation to RFC

[drazisil]

Summary

• Integrates room/game server protocol documentation directly into the main RFC (section 4.6)
• Covers ports 9000-9014 (TCP) and 9500-9508 (UDP) for in-race communication
• Bumps RFC version to 0.2.0 with changelog

Changes

New section 4.6 includes:

• Room message opcodes (client→server and server→client)
• Channel types and flags
• Room channel data structure (256 bytes)
• User data structure (64 bytes)
• Game server state machine and state transitions
• Room join flow with password handling
• Game server startup sequence
• Complete room session flow diagram
• NPS error codes
• String length constants

Also updates:

• Introduction table to include Game/Room Servers
• Section 2.3 with new terms (PLS, Riff, CommId, Channel)

Related Issues

• Closes RFC Gap: Document room/game server protocol (ports 9000-9020) and race integration #2805 (RFC Gap: Document room/game server protocol)
• Provides foundation for RFC Gap: Room protocol remaining details (port allocation, game message payloads, NPS-MCOTS integration) #2806 (remaining minor gaps)

Test plan

• Verify RFC renders correctly in markdown viewer
• Confirm section numbering is consistent
• Review cleanroom methodology compliance

🤖 Generated with Claude Code

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Note

Integrates detailed Room/Game Server Protocol into the main RFC and updates spec metadata.

• New 4.6 Room/Game Server Protocol: port ranges (9000-9014 TCP, 9500-9508 UDP), client/server opcodes (0x1xx/0x2xx), channel types/flags, RoomChannelData (256B) and UserData (64B) structures, game server state machine, room join and server startup flows, full session diagram, NPS error codes, and string length constants
• Introduces NPS_SEND_NOT_SINGLE (0x87) in game message routing
• Updates Introduction table to list Game/Room Servers and rename lobby to Lobby Server (PLS); adds terms (PLS, Riff, CommId, Channel)
• Bumps docs/MCO_PROTOCOL_RFC.md to version 0.2.0 with changelog and date

^{Written by Cursor Bugbot for commit b836be0. This will update automatically on new commits. Configure here.}

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[deepsource-io]

Here's the code health analysis summary for commits 574fe37..b836be0. View details on DeepSource ↗.

Analysis Summary

Analyzer	Status	Summary	Link
JavaScript	✅ Success		View Check ↗

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 32.40%. Comparing base (574fe37) to head (b836be0).
⚠️ Report is 2 commits behind head on dev.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##              dev    #2807   +/-   ##
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  Coverage   32.40%   32.40%           
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  Files         288      288           
  Lines       20408    20408           
  Branches      366      366           
=======================================
  Hits         6613     6613           
  Misses      13791    13791           
  Partials        4        4           

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