All client-to-server commands now go through POST /api/v1/messages
with a 'command' field. The server dispatches by command type:
- PRIVMSG/NOTICE: send message to channel or user
- JOIN: join channel (creates if needed)
- PART: leave channel
- NICK: change nickname
- TOPIC: set channel topic
- PING: keepalive (returns PONG)
Removed separate routes:
- POST /channels/join
- DELETE /channels/{channel}
- POST /register (renamed to POST /session)
- GET /channels/all (moved to GET /channels)
Added DB methods: ChangeNick, SetTopic
- Fix stuttering type names (e.g. config.ConfigParams → config.Params)
- Add doc comments to all exported types/functions/methods
- Add package doc comments to all packages
- Fix JSON tags to camelCase
- Extract magic numbers to constants
- Add blank lines per nlreturn/wsl_v5 rules
- Use errors.Is() for error comparison
- Unexport NewLoggingResponseWriter (not used externally)
- Replace for-range on ctx.Done() with channel receive
- Rename unused parameters to _
- AGENTS.md: all changes via feature branches, no direct main commits
