Run gofmt over the seven files that had drifted

Formatting only: import order, and statements that were packed onto one
line split out. `git diff -w` shows nothing but that.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01CGeSZxh1DCtRxmFVSYVGvJ

cmd/mavweb/ecosystem.go

@@ -91,7 +91,10 @@ func handleEcosystem(w http.ResponseWriter, r *http.Request, urls ecoURLs) {
 	var d ecoData
 	var wg sync.WaitGroup
 	wg.Add(3)
-	go func() { defer wg.Done(); d.Nexus.Err = getEco(ctx, urls.nexus, "/api/v1/entities?limit=50", &d.Nexus.Rows) }()
+	go func() {
+		defer wg.Done()
+		d.Nexus.Err = getEco(ctx, urls.nexus, "/api/v1/entities?limit=50", &d.Nexus.Rows)
+	}()
 	go func() {
 		defer wg.Done()
 		d.Praxis.Err = getEco(ctx, urls.praxis, "/api/v1/items?limit=50", &d.Praxis.Rows)