refactor(peer-support): update remaining UI references (Phase 2)

Dashboard: replace "Peer Support" card and "Book a peer session"
quick action with community ecology links.

Welcome: replace "Peer Support" resource card with "Community
Ecology" heading and link to /ecology.

Members index: rename active filter tag from "Offering Peer
Support" to "Offering Support". The underlying filter still works
correctly (queries communityEcology.offerPeerSupport).

app/pages/welcome.vue

@@ -225,18 +225,19 @@
                 </div>
                 <div>
                   <h4 class="font-semibold text-guild-100 mb-1">
-                    Peer Support
+                    Community Ecology
                   </h4>
                   <p class="text-sm text-guild-400 mb-2">
-                    Connect 1:1 with community members for advice and support.
+                    Connect with community members through shared interests and
+                    cooperative topics.
                   </p>
                   <UButton
-                    to="/members?peerSupport=true"
+                    to="/ecology"
                     variant="link"
                     size="sm"
                     class="p-0"
                   >
-                    Find Peers →
+                    Browse Community →
                   </UButton>
                 </div>
               </div>