feat: add role-*, subsystem-* tests (batches 4+5)

- role-compile, role-validate, role-info: 3 cases
- subsystem-compile, subsystem-validate, subsystem-info: 3 cases
- 34 tests across 22 skills, all passing

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

tests/skills/cases/subsystem-info/overview.json

@@ -0,0 +1,17 @@
+{
+  "name": "Обзор подсистемы",
+  "preRun": [
+    {
+      "script": "meta-compile/scripts/meta-compile",
+      "input": { "type": "Catalog", "name": "Товары" },
+      "args": { "-JsonPath": "{inputFile}", "-OutputDir": "{workDir}" }
+    },
+    {
+      "script": "subsystem-compile/scripts/subsystem-compile",
+      "input": { "name": "Склад", "objects": ["Catalogs.Товары"] },
+      "args": { "-DefinitionFile": "{inputFile}", "-OutputDir": "{workDir}" }
+    }
+  ],
+  "params": { "subsystemPath": "Subsystems/Склад.xml" },
+  "expect": { "stdoutContains": "Склад" }
+}