feat: add form-*, skd-*, misc tests (batches 1, 2, 10)

New skills covered:
- form-add, form-compile, form-validate, form-info (batch 1)
- skd-compile, skd-validate, skd-info (batch 2)
- help-add, template-add, template-remove, meta-remove (batch 10)

Findings: form-add/form-info path resolution inconsistency,
meta-remove self-reference requires -Force.

45 tests across 33 skills, all passing.

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

tests/skills/cases/skd-validate/_skill.json

@@ -0,0 +1,11 @@
+{
+  "script": "skd-validate/scripts/skd-validate",
+  "setup": "none",
+  "args": [
+    { "flag": "-TemplatePath", "from": "workPath", "field": "templatePath" }
+  ],
+  "snapshot": {
+    "root": "workDir",
+    "normalizeUuids": true
+  }
+}

tests/skills/cases/skd-validate/snapshots/valid/Template.xml

@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<DataCompositionSchema xmlns="http://v8.1c.ru/8.1/data-composition-system/schema"
+		xmlns:dcscom="http://v8.1c.ru/8.1/data-composition-system/common"
+		xmlns:dcscor="http://v8.1c.ru/8.1/data-composition-system/core"
+		xmlns:dcsset="http://v8.1c.ru/8.1/data-composition-system/settings"
+		xmlns:v8="http://v8.1c.ru/8.1/data/core"
+		xmlns:v8ui="http://v8.1c.ru/8.1/data/ui"
+		xmlns:xs="http://www.w3.org/2001/XMLSchema"
+		xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+	<dataSource>
+		<name>ИсточникДанных1</name>
+		<dataSourceType>Local</dataSourceType>
+	</dataSource>
+	<dataSet xsi:type="DataSetQuery">
+		<name>Основной</name>
+		<dataSource>ИсточникДанных1</dataSource>
+		<query>SELECT 1 AS Поле</query>
+	</dataSet>
+	<settingsVariant>
+		<dcsset:name>Основной</dcsset:name>
+		<dcsset:presentation xsi:type="v8:LocalStringType">
+			<v8:item>
+				<v8:lang>ru</v8:lang>
+				<v8:content>Основной</v8:content>
+			</v8:item>
+		</dcsset:presentation>
+		<dcsset:settings xmlns:style="http://v8.1c.ru/8.1/data/ui/style" xmlns:sys="http://v8.1c.ru/8.1/data/ui/fonts/system" xmlns:web="http://v8.1c.ru/8.1/data/ui/colors/web" xmlns:win="http://v8.1c.ru/8.1/data/ui/colors/windows">
+			<dcsset:selection>
+			</dcsset:selection>
+			<dcsset:item xsi:type="dcsset:StructureItemGroup">
+				<dcsset:order>
+					<dcsset:item xsi:type="dcsset:OrderItemAuto"/>
+				</dcsset:order>
+				<dcsset:selection>
+					<dcsset:item xsi:type="dcsset:SelectedItemAuto"/>
+				</dcsset:selection>
+			</dcsset:item>
+		</dcsset:settings>
+	</settingsVariant>
+</DataCompositionSchema>

tests/skills/cases/skd-validate/valid.json

@@ -0,0 +1,11 @@
+{
+  "name": "Корректная СКД проходит валидацию",
+  "preRun": [
+    {
+      "script": "skd-compile/scripts/skd-compile",
+      "input": { "dataSets": [{ "name": "Основной", "type": "Query", "query": "SELECT 1 AS Поле" }] },
+      "args": { "-DefinitionFile": "{inputFile}", "-OutputPath": "{workDir}/Template.xml" }
+    }
+  ],
+  "params": { "templatePath": "Template.xml" }
+}