feat(core): optimize DevIn tag handling in AutoDevInlineChatPanel

- Improve handling of <devin> tag in suggestion building process
- Add support for detecting and processing partial <devin> tag inputs
- Refactor code to handle different scenarios in suggestion updates- Remove unnecessary language check in SketchToolWindow

Author: phodal

core/src/main/kotlin/cc/unitmesh/devti/inline/AutoDevInlineChatPanel.kt

@@ -56,12 +56,46 @@ class AutoDevInlineChatPanel(val editor: Editor) : JPanel(GridBagLayout()), Edit
             val suggestion = StringBuilder()
             panelView.onStart()
 
+            var isDevinTagInProgress = false
+            val tagBuffer = StringBuilder()
+            val devinPrefix = "<devin>"
+
             flow?.cancelHandler { panelView.handleCancel = it }?.cancellable()?.collect { char ->
                 suggestion.append(char)
 
-                invokeLater {
-                    panelView.onUpdate(suggestion.toString())
-                    panelView.resize()
+                when {
+                    suggestion.length <= devinPrefix.length -> {
+                        tagBuffer.append(char)
+                        if (devinPrefix.startsWith(tagBuffer.toString())) {
+                            isDevinTagInProgress = true
+                            if (tagBuffer.toString() == devinPrefix) {
+                                invokeLater {
+                                    panelView.onUpdate(suggestion.toString())
+                                    panelView.resize()
+                                }
+                                isDevinTagInProgress = false
+                            }
+                        } else {
+                            isDevinTagInProgress = false
+                            invokeLater {
+                                panelView.onUpdate(suggestion.toString())
+                                panelView.resize()
+                            }
+                        }
+                    }
+                    isDevinTagInProgress -> {
+                        isDevinTagInProgress = false
+                        invokeLater {
+                            panelView.onUpdate(suggestion.toString())
+                            panelView.resize()
+                        }
+                    }
+                    else -> {
+                        invokeLater {
+                            panelView.onUpdate(suggestion.toString())
+                            panelView.resize()
+                        }
+                    }
                 }
             }
 
@@ -329,4 +363,4 @@ class EscHandler(private val targetEditor: Editor, private val action: () -> Uni
             EditorActionManager.getInstance().setActionHandler(IdeActions.ACTION_EDITOR_ESCAPE, it)
         }
     }
-}
+}

core/src/main/kotlin/cc/unitmesh/devti/sketch/SketchToolWindow.kt

@@ -309,14 +309,6 @@ open class SketchToolWindow(
                             }
 
                             var language = codeFence.language
-                            /// in stream API, the <devin> maybe split, like `<dev`, `<devin` or `<devin>`,
-                            /// so we need to check the language again
-                            if (codeFence.language.displayName == "Markdown" && codeFence.text.startsWith("/")) {
-                                logger<SketchToolWindow>().warn("Try to fix language error")
-                                language = findLanguage("DevIn")
-                                originLanguage = "devin"
-                            }
-
                             updateLanguage(language, originLanguage)
                             updateViewText(codeFence.text, codeFence.isComplete)
                         }