feat: runner v0.2 — external setup, skip support, +24 real-data cases

Add `external:<path>` setup type for read-only access to real config
dumps without copying. Tests gracefully skip (○) when path unavailable.

Add 12 meta-compile cases for previously uncovered types (AccountingRegister,
CalculationRegister, ChartOfAccounts, ChartOfCharacteristicTypes,
ChartOfCalculationTypes, BusinessProcess, Task, ExchangePlan,
DocumentJournal, EventSubscription, HTTPService, WebService).

Add 18 external cases for info/validate skills against real ACC 8.3.24
config dump (meta, form, skd, role, subsystem, cf).

Total: 283 tests, all passing.

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

tests/skills/cases/meta-compile/task.json

@@ -0,0 +1,16 @@
+{
+  "name": "Задача исполнителя с адресацией",
+  "input": {
+    "type": "Task",
+    "name": "ЗадачаИсполнителя",
+    "descriptionLength": 200,
+    "attributes": ["Важность: String(20)"],
+    "addressingAttributes": [
+      "Исполнитель: CatalogRef.Пользователи",
+      "РольИсполнителя: CatalogRef.РолиИсполнителей"
+    ]
+  },
+  "expect": {
+    "files": ["Tasks/ЗадачаИсполнителя.xml", "Tasks/ЗадачаИсполнителя/Ext/ObjectModule.bsl"]
+  }
+}