feat(devins-lang): add task creation design #100

Add methods to create tasks and temporary task files for DevIns language processing.

- Added `createTasks` method to generate a list of DevInFile objects based on input and output.
- Added `createTempTaskFile` method to generate a temporary DevInFile for tasks.

exts/devins-lang/src/main/kotlin/cc/unitmesh/devti/language/run/flow/DevInsFlowProcessor.kt

@@ -1,5 +1,6 @@
 package cc.unitmesh.devti.language.run.flow
 
+import cc.unitmesh.devti.language.psi.DevInFile
 import com.intellij.execution.process.ProcessEvent
 import com.intellij.openapi.components.Service
 import com.intellij.openapi.project.Project
@@ -17,4 +18,20 @@ class DevInsFlowProcessor(val project: Project) {
             // stop
         }
     }
+
+    /**
+     * 1. We need to call LLM to get the task list
+     * 2. According to the input and output to decide the next step
+     */
+    fun createTasks(): List<DevInFile> {
+        TODO()
+    }
+
+    /**
+     * Generate DevIns Task file by LLM
+     */
+    fun createTempTaskFile(): DevInFile {
+        // TODO
+        return DevInFile.fromString(project, "")
+    }
 }