refactor(core): add exception handling for regex compilation

Add try-catch block to handle exceptions when compiling regular expressions in CustomActionBaseIntention. Additionally, simplify the flows function in TeamPromptsBuilder by directly returning the filtered result.

core/src/main/kotlin/cc/unitmesh/devti/custom/CustomActionBaseIntention.kt

@@ -74,10 +74,14 @@ class CustomActionBaseIntention(private val intentionConfig: CustomIntentionConf
 
  val builder = StringBuilder()
 
- val customPattern = Pattern.compile(regex)
- val matcher = customPattern.matcher(input)
- while (matcher.find()) {
- builder.append(matcher.group()).append("\n")
+ try {
+ val pattern = Pattern.compile(regex)
+ val matcher = pattern.matcher(input)
+ while (matcher.find()) {
+ builder.append(matcher.group()).append("\n")
+ }
+ } catch (e: Exception) {
+ logger.error("Failed to compile regex: $regex", e)
  }
 
  return builder.toString()

core/src/main/kotlin/cc/unitmesh/devti/custom/team/TeamPromptsBuilder.kt

@@ -40,9 +40,7 @@ class TeamPromptsBuilder(private val project: Project) {
  fun flows(): List<VirtualFile> {
  val promptsDir = basePromptDir ?: return emptyList()
  val promptDir = promptsDir.findChild("flows") ?: return emptyList()
- val devinFiles = promptDir.children.filter { it.name.endsWith(".devin") }
-
- return devinFiles
+ return promptDir.children.filter { it.name.endsWith(".devin") }
  }
 
  private fun buildPrompts(prompts: List<VirtualFile>): List<TeamPromptAction> {