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/calculation-register.json

@@ -0,0 +1,16 @@
+{
+  "name": "Регистр расчёта с периодичностью",
+  "input": {
+    "type": "CalculationRegister",
+    "name": "Начисления",
+    "chartOfCalculationTypes": "ChartOfCalculationTypes.ВидыНачислений",
+    "periodicity": "Month",
+    "actionPeriod": true,
+    "basePeriod": true,
+    "dimensions": ["Сотрудник: CatalogRef.Сотрудники"],
+    "resources": ["Результат: Number(15,2)", "ОтработаноДней: Number(5,0)"]
+  },
+  "expect": {
+    "files": ["CalculationRegisters/Начисления.xml", "CalculationRegisters/Начисления/Ext/RecordSetModule.bsl"]
+  }
+}