fix: fix merge to summary issue

unit-cli/src/main/kotlin/cc/unitmesh/runner/Picker.kt

@@ -56,9 +56,14 @@ class PickerCommand : CliktCommand() {
                 File(outputDir, result.outputName).writeText(json.encodeToString(result.content))
             }
 
-            val outputFile = File(outputDir, "summary.json")
-            val json = Json { prettyPrint = true }
-            outputFile.writeText(json.encodeToString(finalResult))
+            val outputFile = File(outputDir, "summary.jsonl")
+            if (outputFile.exists()) {
+                outputFile.delete()
+            }
+
+            finalResult.forEach {
+                outputFile.appendText(it.toString() + "\n")
+            }
 
             logger.info("Runner finished: ${outputDir.absolutePath}")
             logger.info("Total size: ${finalResult.size}")

unit-cli/src/main/kotlin/cc/unitmesh/runner/cli/ProcessorResult.kt

@@ -1,7 +1,9 @@
 package cc.unitmesh.runner.cli
 
 import cc.unitmesh.pick.prompt.Instruction
+import kotlinx.serialization.Serializable
 
+@Serializable
 data class ProcessorResult(
     val repository: String,
     val content: MutableList<Instruction>,

unit-picker/src/main/kotlin/cc/unitmesh/pick/builder/PickerOption.kt

@@ -74,6 +74,7 @@ data class PickerOption(
      */
     val codeQualityTypes: List<CodeQualityType> = listOf(),
     val builderConfig: BuilderConfig = BuilderConfig(),
+    val maxCompletionInOneFile: Int = 1,
 ) {
     fun pureDataFileName(): String {
         return baseDir + File.separator + repoFileName() + ".jsonl"

unit-picker/src/main/kotlin/cc/unitmesh/pick/prompt/Instruction.kt

@@ -1,10 +1,15 @@
 package cc.unitmesh.pick.prompt
 
 import kotlinx.serialization.Serializable
+import kotlinx.serialization.json.Json
 
 @Serializable
 data class Instruction(
     val instruction: String,
     val input: String,
     val output: String,
-)
+) {
+    override fun toString(): String {
+        return Json.encodeToString(serializer(), this)
+    }
+}