Replace manifesto bar with compact context bar + add privacy page

- layout.php: replace large manifesto section (eyebrow/title/sub/4 stats) with
  a slim dbn-context-bar strip linking to why-ours, pricing, MCP, and privacy
- i18n.php: add context_bar_* + footer_privacy_link + privacy_page_title keys
  to all 4 language blocks (en, no, uk, pl)
- dbn-tools-redesign.css: add .dbn-context-bar styles with mobile wrap
- privacy.php: new standalone page in 4 languages covering in-memory processing,
  metadata-only logging, My Case opt-in storage, EU data locations, and HTTPS transport
- footer.php: add Privacy link to first footer column

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

assets/css/dbn-tools-redesign.css

@@ -819,3 +819,54 @@ body[data-active-tool='citations'] .results {
     transition-duration: 0.001ms !important;
   }
 }
+
+/* ── Context bar (replaces manifesto, added 2026-05-24) ──────────────────── */
+.dbn-context-bar {
+  display: flex;
+  align-items: center;
+  gap: 0.5rem 1.25rem;
+  flex-wrap: wrap;
+  padding: 0.45rem 1.25rem;
+  background: var(--color-navy, #00205B);
+  font-size: 0.8rem;
+  color: rgba(255, 255, 255, 0.7);
+  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
+}
+
+.dbn-context-bar__tag {
+  font-weight: 600;
+  color: #fff;
+  white-space: nowrap;
+  flex-shrink: 0;
+}
+
+.dbn-context-bar__links {
+  display: flex;
+  gap: 0.25rem 1rem;
+  flex-wrap: wrap;
+  list-style: none;
+  margin: 0;
+  padding: 0;
+}
+
+.dbn-context-bar__links a {
+  color: rgba(255, 255, 255, 0.72);
+  text-decoration: none;
+  white-space: nowrap;
+  transition: color 0.15s ease;
+}
+
+.dbn-context-bar__links a:hover,
+.dbn-context-bar__links a:focus-visible {
+  color: #fff;
+  text-decoration: underline;
+}
+
+@media (max-width: 640px) {
+  .dbn-context-bar {
+    flex-direction: column;
+    align-items: flex-start;
+    gap: 0.35rem;
+    padding: 0.55rem 1rem;
+  }
+}