tests: add error prefix for json schema in checks

lib/inventory/distributed-service/api-feature.nix

@@ -1,7 +1,7 @@
 # This module enables itself if
 # manifest.features.API = true
 # It converts the roles.interface to a json-schema
-{ clanLib, attrName }:
+{ clanLib, prefix }:
 let
   converter = clanLib.jsonschema {
     includeDefaults = true;
@@ -45,7 +45,7 @@ in
 
           To see the evaluation problem run
 
-          nix eval .#clanInternals.inventoryClass.distributedServices.importedModulesEvaluated.${attrName}.config.result.api.schema.${roleName}
+          nix eval .#${lib.concatStringsSep "." prefix}.config.result.api.schema.${roleName}
         '';
         assertion = (builtins.tryEval (lib.deepSeq config.result.api.schema.${roleName} true)).success;
       };

lib/inventory/distributed-service/inventory-adapter.nix

@@ -16,15 +16,14 @@
 }:
 let
   evalClanService =
-    { modules, key }:
+    { modules, prefix }:
     (lib.evalModules {
       class = "clan.service";
       modules = [
         ./service-module.nix
         # feature modules
         (lib.modules.importApply ./api-feature.nix {
-          inherit clanLib;
-          attrName = key;
+          inherit clanLib prefix;
         })
       ] ++ modules;
     });
@@ -37,6 +36,7 @@ in
       flakeInputs,
       # The clan inventory
       inventory,
+      prefix ? [ ],
     }:
     let
       # machineHasTag = machineName: tagName: lib.elem tagName inventory.machines.${machineName}.tags;
@@ -138,7 +138,7 @@ in
       importedModulesEvaluated = lib.mapAttrs (
         module_ident: instances:
         evalClanService {
-          key = module_ident;
+          prefix = prefix ++ [ module_ident ];
           modules =
             [
               # Import the resolved module.