docs(site): refresh footer + agent blurb

docs/AGENTS.default.md

@@ -9,7 +9,7 @@ read_when:
 ## What Clawdis Does
 - Runs WhatsApp gateway + Pi coding agent so the assistant can read/write chats, fetch context, and run tools via the host Mac.
 - macOS app manages permissions (screen recording, notifications, microphone) and exposes a CLI helper `clawdis-mac` for scripts.
-- Sessions are per-sender; heartbeats keep background tasks alive.
+- Direct chats collapse into the shared `main` session by default; groups stay isolated as `group:<jid>`; heartbeats keep background tasks alive.
 
 ## Core Tools (enable in Settings → Tools)
 - **mcporter** — MCP runtime/CLI to list, call, and sync Model Context Protocol servers.

docs/_layouts/default.html

@@ -122,8 +122,8 @@
             <span class="footer__sep">·</span>
             <a href="https://github.com/steipete/clawdis">source</a>
             <span class="footer__sep">·</span>
-            <a href="https://www.npmjs.com/package/clawdis">npm</a>
-	          </div>
+            <a href="https://github.com/steipete/clawdis/releases">releases</a>
+          </div>
 	          <div class="footer__hint" aria-hidden="true">
 	            tip: press <kbd>F2</kbd> (Mac: <kbd>fn</kbd>+<kbd>F2</kbd>) to flip
 	            the universe