Add a ClientIP middleware that resolves the client address once per
request and stores it in the context, placed ahead of logging in the
route chain. The request-logging middleware and both login-attempt logs
now read the resolved address instead of the raw peer. Behind a trusted
proxy these records show the real client; a direct, untrusted client
still shows its own address and cannot forge one. Removes the local
host:port helper now that the clientip package owns that parsing.
Model: opus-4-8
sneak
20a18c7345