refactor(vcs): update for prompting msg

Author: phodal

src/main/kotlin/cc/unitmesh/devti/actions/vcs/CommitMessageSuggestionAction.kt

@@ -14,6 +14,7 @@ import com.intellij.openapi.components.service
 import com.intellij.openapi.diagnostic.logger
 import com.intellij.openapi.vcs.VcsDataKeys
 import com.intellij.openapi.vcs.changes.Change
+import com.intellij.openapi.vcs.changes.ChangeListManager
 import com.intellij.openapi.vcs.ui.CommitMessage
 import kotlinx.coroutines.runBlocking
 import kotlinx.coroutines.flow.*

src/main/kotlin/cc/unitmesh/devti/vcs/VcsPrompting.kt

@@ -47,8 +47,11 @@ class VcsPrompting(private val project: Project) {
             it.changes
         }
 
-        val context = project.service<DiffSimplifier>().simplify(changes, defaultIgnoreFilePatterns)
-        return context
+        return prepareContext(changes)
+    }
+
+    fun prepareContext(changes: List<Change>): String {
+        return project.service<DiffSimplifier>().simplify(changes, defaultIgnoreFilePatterns)
     }
 
     /**