feat(ui): add AI-assisted commit dialog with diff viewer

Implement enhanced commit UI with visual diff preview, issue selector, and AI-generated commit messages. Add serialization annotations to EditRequest data class and remove redundant comments from CodeHighlightSketch for improved code clarity.

Related to #408

Author: phodal

core/src/main/kotlin/cc/unitmesh/devti/command/EditFileCommand.kt

@@ -12,6 +12,8 @@ import com.intellij.openapi.project.Project
 import com.intellij.openapi.project.guessProjectDir
 import com.intellij.openapi.vfs.VirtualFile
 import com.intellij.openapi.diff.impl.patch.TextFilePatch
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
 import org.yaml.snakeyaml.LoaderOptions
 import org.yaml.snakeyaml.Yaml
 import org.yaml.snakeyaml.constructor.SafeConstructor
@@ -126,9 +128,13 @@ class EditFileCommand(private val project: Project) {
     }
 }
 
+@Serializable
 data class EditRequest(
+    @SerialName("target_file")
     val targetFile: String,
+    @SerialName("instructions")
     val instructions: String,
+    @SerialName("code_edit")
     val codeEdit: String
 )
 

core/src/main/kotlin/cc/unitmesh/devti/sketch/ui/code/CodeHighlightSketch.kt

@@ -60,7 +60,7 @@ open class CodeHighlightSketch(
     private var isDevIns = false
     private var collapsedPanel: JPanel? = null
     private var previewLabel: JBLabel? = null // 存储预览标签的引用
-    private var isCollapsed = true // 默认折叠状态
+    private var isCollapsed = true
     private var actionButton: ActionButton? = null
     private var isComplete = isUser
     private var hasProcessedDevInCommands = false
@@ -115,12 +115,10 @@ open class CodeHighlightSketch(
             editorFragment = EditorFragment(editor, editorLineThreshold, previewEditor)
         }
 
-        // 检查是否需要折叠视图
         val needsCollapsedView = shouldUseCollapsedView()
         if (needsCollapsedView) {
             setupCollapsedView(text)
         } else {
-            // 直接添加编辑器内容，不使用折叠
             add(editorFragment!!.getContent())
             isCollapsed = false
         }
@@ -229,7 +227,6 @@ open class CodeHighlightSketch(
         actionButtonPresentation.icon = AllIcons.General.ArrowRight
         return ActionButton(
             DumbAwareAction.create {
-                // 普通编辑器的按钮行为，可以根据需要扩展
             },
             actionButtonPresentation,
             "AutoDevToolbar",
@@ -323,7 +320,6 @@ open class CodeHighlightSketch(
     override fun updateViewText(text: String, complete: Boolean) {
         isComplete = complete
 
-        // Initialize editor if not already done and text is not empty
         if (!hasSetupAction && text.trim().isNotEmpty()) {
             initEditor(text)
         }
@@ -339,8 +335,6 @@ open class CodeHighlightSketch(
             val normalizedText = StringUtil.convertLineSeparators(text)
             try {
                 document?.replaceString(0, document.textLength, normalizedText)
-
-                // Update collapsed panel preview text if applicable
                 if (previewLabel != null && shouldUseCollapsedView()) {
                     val firstLine = normalizedText.lines().firstOrNull() ?: ""
                     previewLabel!!.text = firstLine
@@ -349,22 +343,18 @@ open class CodeHighlightSketch(
                 logger<CodeHighlightSketch>().error("Error updating editor text", e)
             }
 
-            // Update action button icon state
             updateActionButtonIcon()
 
             val lineCount = document?.lineCount ?: 0
             if (lineCount > editorLineThreshold) {
                 editorFragment?.updateExpandCollapseLabel()
             }
 
-            // Auto-collapse view when complete (only for collapsible views)
-            // 注意：现在 shouldUseCollapsedView() 已经考虑了 isUser 和 isDevIns 状态
             if (complete && !isCollapsed && shouldUseCollapsedView()) {
                 toggleEditorVisibility()
             }
         }
 
-        // Process DevIn commands when complete (only once)
         if (complete && !isUser && ideaLanguage?.displayName == "DevIn") {
             processDevInCommands(text)
             hasProcessedDevInCommands = true