Claim a username when you sign up

[nicodes]

Client half of the identity model. Pairs with aviorstudio/termcade-be#8, which is where handles, orgs and membership live.

An account's handle is the author segment of every game it publishes, so signup asks for one and the session carries it.

$ termcade signup
username (this is your publishing handle, e.g. nicodes): nicodes
email: nico@example.com
password:
confirm password:
welcome to termcade, nico@example.com — publish as nicodes/<game>

The handle is asked first, before the email — it is the decision being made, not a field below the password. The TUI's create-account form grows the same field, shown only when signing up, and tab order puts it first for the same reason.

An account without a handle is a real state

If the name is taken between the check and the claim, the session is still good and the server says what is missing:

note: nicodes was taken just then — you are signed in, but still need a username

Nothing treats that as a failed signup, which would send someone to retry with an email that is now their own. PATCH /v1/me/username claims one later, and the same call renames.

Verified

go vet clean, full suite passes. The TUI signup test now types a handle, tabs through all three fields, and asserts the handle actually reaches the hook rather than merely rendering.

End to end against a real stack (see the backend PR): this binary resolved, downloaded and installed aviorstudio/tetris published by a plain org member.

🤖 Generated with Claude Code