Replaces the previous MIT license with GPL-3.0-or-later. Adds the full
GPL-3.0 license text at LICENSE, updates pyproject.toml metadata and
classifier, updates the README, and adds SPDX-License-Identifier headers
to all first-party server Python and client JavaScript sources.
Third-party anime.min.js is left untouched.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Replace onclick attributes with data-action/data-id attributes and
use event delegation. CSP script-src 'self' blocks inline handlers.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Admin panel gets "Copy Link" button on active invites that copies
a signup URL with ?invite= param. Client auto-opens signup form
with invite code pre-filled when visiting that link.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
