feat(forms): obvious publish flow, member Forms surface, templates (P8)

- builder: draft/published/closed status banners; creating a form now
  lands on its edit page so Publish is immediately visible; a
  members-only form shows a "no public link" note instead of a dead URL
- member-facing forms: /my-forms list + /my-forms/[id] fill
  (MemberFillClient), "Forms" sidebar item for all members. Fixes the
  long-standing gap where members-only forms had no fill surface
- starter templates: lib/form-templates.ts + a picker on /forms/new
  (Liability waiver, Membership application, Event RSVP, Photo release,
  Blank) that seeds builder state (no table)
- forms-client relabels members-only forms (was showing a misleading
  /f/<space>/<slug> that always 404s for members-only)
- docs corrected per the audit pass: DATABASE_SCHEMA / DB_SCHEMA_MAP /
  ARCHITECTURE / API_REFERENCE now reflect migrations 014-029, per-space
  slug, /f/[space]/[slug], getPublicForm({space,slug}), invite roles;
  HANDOFF pass-19 added with residual gaps

337 tests; build verified (Compiled successfully, exit 0). No deploy.

app/(app)/forms/forms-client.tsx

@@ -65,7 +65,11 @@ export function FormsClient({ forms, spaceSlug }: { forms: FormRow[]; spaceSlug:
                     </Link>
                     {f.kind === 'waiver' && <Badge variant="secondary">Waiver</Badge>}
                   </div>
-                  <p className="font-mono text-xs text-muted-foreground">/f/{spaceSlug}/{f.slug}</p>
+                  <p className="font-mono text-xs text-muted-foreground">
+                    {f.visibility === 'members'
+                      ? 'Members-only (filled from the in-app Forms page)'
+                      : `/f/${spaceSlug}/${f.slug}`}
+                  </p>
                 </div>
                 <Badge variant="outline">{VIS_LABEL[f.visibility] ?? f.visibility}</Badge>
                 <Badge variant={f.status === 'published' ? 'default' : 'secondary'}>