refactor(community): rename Community Connections → Community Ecology

Simplify the feature to pure discovery (filter by topic, see matching
members, copy Slack handle). Drop the connection request/confirm flow
entirely — Connection model, 7 API endpoints, useConnections composable,
and TagInput component deleted.

- Rename communityConnections → communityEcology in schema, API, pages
- Delete legacy fields: offering, lookingFor, peerSupport
- New /ecology page, /api/ecology/suggestions, community-ecology.patch
- Nav: "Connections" → "Ecology", remove pending-count badge
- Fix auth/member.get.js missing craftTags + communityEcology
- Add community_ecology_updated activity log type
- Expose slackHandle conditionally when offerPeerSupport is true
- Add migration script at scripts/migrate-to-ecology.js (run before deploy)

server/api/auth/member.get.js

@@ -21,14 +21,11 @@ export default defineEventHandler(async (event) => {
     bio: member.bio,
     location: member.location,
     socialLinks: member.socialLinks,
-    offering: member.offering,
-    lookingFor: member.lookingFor,
+    craftTags: member.craftTags,
+    communityEcology: member.communityEcology,
     showInDirectory: member.showInDirectory,
     notifications: member.notifications,
     privacy: member.privacy,
-    // Peer support
-    peerSupport: member.peerSupport,
-    // Timestamps
     createdAt: member.createdAt,
   };
 });