There's no email infrastructure in this app, so a self-service
"forgot password" flow isn't feasible yet. Adds a "Reset Password"
button per user in the admin panel instead: generates a random
temporary password (shown once, for the admin to relay out-of-band),
overwrites the user's password hash, and signs them out of every
existing session so a stolen session can't outlive the reset.
Verified live: old password rejected after reset, new temporary
password logs in successfully.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>