feat: add kotlin commands and skill pack

.cursor/rules/kotlin-testing.md

@@ -0,0 +1,38 @@
+---
+description: "Kotlin testing extending common rules"
+globs: ["**/*.kt", "**/*.kts", "**/build.gradle.kts"]
+alwaysApply: false
+---
+# Kotlin Testing
+
+> This file extends the common testing rule with Kotlin-specific content.
+
+## Framework
+
+Use **Kotest** with spec styles (StringSpec, FunSpec, BehaviorSpec) and **MockK** for mocking.
+
+## Coroutine Testing
+
+Use `runTest` from `kotlinx-coroutines-test`:
+
+```kotlin
+test("async operation completes") {
+    runTest {
+        val result = service.fetchData()
+        result.shouldNotBeEmpty()
+    }
+}
+```
+
+## Coverage
+
+Use **Kover** for coverage reporting:
+
+```bash
+./gradlew koverHtmlReport
+./gradlew koverVerify
+```
+
+## Reference
+
+See skill: `kotlin-testing` for detailed Kotest patterns, MockK usage, and property-based testing.