refactor(web): unify dashboard footer via SiteFooter compact variant

Add a `compact` variant to SiteFooter (single-line copyright + legal
links) and use it in the dashboard layout, replacing the divergent
hard-coded inline footer. The dashboard footer is now i18n-aware,
contrast-corrected, and adds the KVKK link for parity with the site
footer. Both layouts now render from one component.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/web/src/routes/dashboard.tsx

@@ -1,3 +1,4 @@
+import { SiteFooter } from "@/components/site-footer";
 import { TrialUrgencyBanner } from "@/components/trial-urgency-banner";
 import { useAuth } from "@/hooks/use-auth";
 import { api } from "@/lib/api-client";
@@ -512,18 +513,7 @@ function DashboardLayout() {
           </main>
 
           {/* Footer */}
-          <div className="border-t border-border px-6 py-3">
-            <p className="text-center text-xs text-muted-foreground/70">
-              &copy; {new Date().getFullYear()} Sase.tr ·{" "}
-              <Link to="/privacy" className="transition-colors hover:text-foreground">
-                Gizlilik Politikası
-              </Link>{" "}
-              ·{" "}
-              <Link to="/terms" className="transition-colors hover:text-foreground">
-                Kullanım Koşulları
-              </Link>
-            </p>
-          </div>
+          <SiteFooter variant="compact" />
         </div>
 
         {/* ─── Mobile Nav Drawer (Radix Dialog: focus-trap, Esc, scroll-lock) ─── */}