docs(marketing): refresh timeline 'what's next' for v2.0.0 + v0.3.0

Old next-block listed dashboard (shipped), slack bridge (still
v0.3.0), self-host (v0.3.0), SSO (out of scope). Replaces with
the actual roadmap horizon: daemon redesign, per-topic crypto,
self-host packaging, federation.

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

apps/web/src/modules/marketing/home/timeline.tsx

@@ -210,7 +210,8 @@ export const Timeline = () => {
                     className="text-[14px] text-[var(--cm-fg-tertiary)]"
                     style={{ fontFamily: "var(--cm-font-serif)" }}
                   >
-                    Dashboard · Slack bridge · self-host packaging · SSO
+                    Daemon redesign · per-topic encryption · self-host
+                    packaging · federation
                   </span>
                 </div>
               </div>