feat(kotlin): add language-specific file name dictionary provider for Kotlin #358

- Implement KotlinLangDictProvider to collect Kotlin file names
- Update plugin XML to register the new langDictProvider

Author: phodal

kotlin/src/main/kotlin/cc/unitmesh/kotlin/indexer/provider/KotlinLangDictProvider.kt

@@ -0,0 +1,23 @@
+package cc.unitmesh.kotlin.indexer.provider
+
+import cc.unitmesh.devti.indexer.provider.LangDictProvider
+import com.intellij.openapi.application.runReadAction
+import com.intellij.openapi.project.Project
+import com.intellij.psi.search.FileTypeIndex
+import com.intellij.psi.search.ProjectScope
+import org.jetbrains.kotlin.idea.KotlinFileType
+
+class KotlinLangDictProvider : LangDictProvider {
+    override suspend fun collectFileNames(project: Project): List<String> {
+        val searchScope = ProjectScope.getProjectScope(project)
+        val javaFiles = runReadAction {
+            FileTypeIndex.getFiles(KotlinFileType.INSTANCE, searchScope)
+        }
+
+        val filenames = javaFiles.mapNotNull {
+            it.nameWithoutExtension
+        }
+
+        return filenames
+    }
+}

kotlin/src/main/resources/cc.unitmesh.kotlin.xml

@@ -45,5 +45,7 @@
         <customPromptProvider
                 language="kotlin"
                 implementationClass="cc.unitmesh.kotlin.provider.KotlinCustomPromptProvider" />
+
+        <langDictProvider implementation="cc.unitmesh.kotlin.indexer.provider.KotlinLangDictProvider"/>
     </extensions>
 </idea-plugin>