[Enhancement] Integration / API: Forum signature / tagline composer has no AI wand despite broad precedent

Area: Integration / API (audit p13) · Surface: /tools/signature (markdown signature editor) · Dimension: Law 8 AI wand · Severity: enhancement

Members write a short markdown signature/tagline here. This is exactly the kind of short-form copy field where an AI wand ('draft a tagline', 'tighten this') fits, and the platform already ships wands on analogous fields (bio, marketplace blurbs, thread bodies). Adding one would bring this surface in line with the Law 8 'wand on nearly every config option' bar.

Evidence

platform/templates/tools/signature-generator.php:105-111 is a free-text markdown signature/tagline editor (`<textarea id="sigEditor" name="signature" …placeholder="**Your Name** | *Your tagline here*">`) with no AI assist control. AI wands already exist on comparable user-content fields: grep of platform/templates shows data-ai/ai-wand on profile/edit.php (bio), profile/settings.php, marketplace/form.php, forums/create-thread.php, knowledge/editor.php, helpdesk canned/form.php, etc.

Suggested fix. Add an AI wand control to the signature editor (gated by the same /admin/ai feature flag as the other member-AI wands) that generates/refines a short markdown signature from the user's handle and a one-line prompt, writing the result into both #sigEditor and the live preview.

Filed by the automated tenant-app audit and adversarially evidence-verified. Status: verified. Open — not yet actioned.