refactor(shirelang): simplify variable handling and remove unused imports

- Replace `var` with `val` in `UserCustomVariableResolver` for immutability.
- Remove unused imports and redundant code in `ShireFileRunService`.

Author: phodal

shirelang/src/main/kotlin/com/phodal/shirelang/compiler/variable/resolver/UserCustomVariableResolver.kt

@@ -8,7 +8,7 @@ class UserCustomVariableResolver(
     private val context: VariableResolverContext
 ) : VariableResolver {
     override suspend fun resolve(initVariables: Map<String, Any>): Map<String, String> {
-        var vars: MutableMap<String, Any?> = initVariables.toMutableMap()
+        val vars: MutableMap<String, Any?> = initVariables.toMutableMap()
         return context.hole?.variables?.mapValues {
             PatternActionProcessor(context.myProject, context.hole, vars).execute(it.value)
         } ?: emptyMap()

shirelang/src/main/kotlin/com/phodal/shirelang/runner/ShireFileRunService.kt

@@ -8,13 +8,9 @@ import com.intellij.openapi.application.runReadAction
 import com.intellij.openapi.project.Project
 import com.intellij.openapi.vfs.VirtualFile
 import com.intellij.psi.PsiElement
-import com.phodal.shirecore.config.InteractionType
-import com.phodal.shirecore.config.ShireActionLocation
 import com.phodal.shirecore.provider.shire.FileRunService
-import com.phodal.shirelang.ShireBundle
 import com.phodal.shirelang.actions.ShireRunFileAction.Companion.executeFile
 import com.phodal.shirelang.actions.base.DynamicShireActionConfig
-import com.phodal.shirelang.compiler.ast.hobbit.HobbitHole
 import com.phodal.shirelang.psi.ShireFile
 import com.phodal.shirelang.run.ShireConfiguration
 import com.phodal.shirelang.run.ShireConfigurationType
@@ -50,25 +46,11 @@ class ShireFileRunService : FileRunService, Disposable {
 
         return setting
     }
-
-    /**
-     * Create ChatBox Run
-     */
     override fun runFile(project: Project, virtualFile: VirtualFile, psiElement: PsiElement?): String? {
         val settings = createRunSettings(project, virtualFile, psiElement) ?: return null
         val psiFile = ShireFile.lookup(project, virtualFile) ?: return null
 
-        var config = DynamicShireActionConfig.from(psiFile)
-        if (config.hole == null) {
-            config = config.copy(
-                hole = HobbitHole.create(
-                    ShireBundle.message("shire.actions.chat-box"),
-                    ShireBundle.message("shire.actions.run-from-chat-box"),
-                    InteractionType.RightPanel,
-                    ShireActionLocation.CHAT_BOX
-                )
-            )
-        }
+        val config = DynamicShireActionConfig.from(psiFile)
 
         executeFile(project, config, settings)
         return "Running Shire file: ${virtualFile.name}"