feat(api): enhance community retrieval with flexible ID handling

Updated the GetCommunity function to accept both UUIDs and community titles for improved flexibility in community retrieval. Added error handling for invalid ID formats and adjusted related functions to ensure consistent behavior across memory and PostgreSQL storage. This change enhances the API's usability by allowing more intuitive community lookups.

internal/httpapi/routes_crud.go

@@ -57,8 +57,8 @@ func (s *Server) registerCRUDRoutes(m *http.ServeMux) {
 
 	m.HandleFunc("GET /communities", s.handleListComm)
 	m.HandleFunc("POST /communities", s.handlePostComm)
-	m.HandleFunc("GET /communities/{id}", s.handleGetComm)
 	m.HandleFunc("GET /communities/{id}/prefixes", s.handleListCommPrefixes)
+	m.HandleFunc("GET /communities/{id}", s.handleGetComm)
 	m.HandleFunc("PATCH /communities/{id}", s.handlePatchComm)
 	m.HandleFunc("DELETE /communities/{id}", s.handleDeleteComm)
 
@@ -232,6 +232,9 @@ func writePostgresStoreErr(w http.ResponseWriter, err error) bool {
 	case "23505":
 		writeProblem(w, http.StatusConflict, "Conflict", "resource already exists")
 		return true
+	case "22P02":
+		writeProblem(w, http.StatusBadRequest, "Bad Request", "invalid id format")
+		return true
 	}
 	return false
 }