fix(proxy): Trae messages.content 转原生块数组，修复 4001

- 上游 LLMRawMessage.messages.content 要求 []*LLMRawMessageContent
- 字符串转 [{"type":"text","text":...}]，列表块按 text/input_text 归一
- 版本升至 1.7.2

app/build.gradle.kts

@@ -16,8 +16,8 @@ android {
         applicationId = "com.rainy.token"
         minSdk = 31
         targetSdk = 35
-        versionCode = 21
-        versionName = "1.7.1"
+        versionCode = 22
+        versionName = "1.7.2"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
         vectorDrawables {

app/src/main/java/com/rainy/token/data/proxy/TraeChatProxy.kt

@@ -10,8 +10,11 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 import kotlinx.serialization.json.Json
 import kotlinx.serialization.json.JsonArray
+import kotlinx.serialization.json.JsonElement
+import kotlinx.serialization.json.JsonNull
 import kotlinx.serialization.json.JsonObject
 import kotlinx.serialization.json.JsonPrimitive
+import kotlinx.serialization.json.buildJsonArray
 import kotlinx.serialization.json.buildJsonObject
 import kotlinx.serialization.json.contentOrNull
 import kotlinx.serialization.json.put
@@ -164,6 +167,67 @@ class TraeChatProxy @Inject constructor(
         "User-Agent" to "Trae/0.1.52",
     )
 
+    private fun convertNativeMessages(src: JsonElement?): List<JsonElement> {
+        val arr = src as? JsonArray ?: return emptyList()
+        return arr.mapNotNull { el ->
+            val m = el as? JsonObject ?: return@mapNotNull null
+            val rawRole = (m["role"] as? JsonPrimitive)?.contentOrNull?.lowercase() ?: "user"
+            val role = when (rawRole) {
+                "developer" -> "system"
+                "system", "user", "assistant", "tool", "function" -> rawRole
+                else -> "user"
+            }
+            buildJsonObject {
+                put("role", role)
+                val content = nativeContent(m["content"])
+                if (content != null) put("content", content)
+                m["name"]?.let { put("name", it) }
+                m["tool_call_id"]?.let { put("tool_call_id", it) }
+                m["tool_calls"]?.let { put("tool_calls", it) }
+            }
+        }
+    }
+
+    private fun nativeContent(content: JsonElement?): JsonElement? {
+        if (content == null || content is JsonNull) return null
+        if (content is JsonPrimitive) {
+            return buildJsonArray {
+                add(buildJsonObject {
+                    put("type", "text")
+                    put("text", content.content)
+                })
+            }
+        }
+        if (content is JsonArray) {
+            return buildJsonArray {
+                content.forEach { block ->
+                    when (block) {
+                        is JsonPrimitive -> add(buildJsonObject {
+                            put("type", "text")
+                            put("text", block.content)
+                        })
+                        is JsonObject -> {
+                            val type = (block["type"] as? JsonPrimitive)?.contentOrNull?.lowercase()
+                            if (type == "text" || type == "input_text") {
+                                val text = (block["text"] as? JsonPrimitive)?.contentOrNull
+                                    ?: (block["content"] as? JsonPrimitive)?.contentOrNull
+                                    ?: ""
+                                add(buildJsonObject {
+                                    put("type", "text")
+                                    put("text", text)
+                                })
+                            } else {
+                                add(block)
+                            }
+                        }
+                        else -> add(block)
+                    }
+                }
+            }
+        }
+        return null
+    }
+
     private fun buildUpstreamBody(raw: String, credential: Credential.TraeCredential): String {
         val src = try {
             json.parseToJsonElement(raw) as? JsonObject
@@ -173,11 +237,11 @@ class TraeChatProxy @Inject constructor(
 
         val model = (src["model"] as? JsonPrimitive)?.contentOrNull?.takeIf { it.isNotBlank() }
             ?: "glm-5.2"
-        val messages = src["messages"] as? JsonArray ?: JsonArray(emptyList())
+        val messages = convertNativeMessages(src["messages"])
         val sessionId = UUID.randomUUID().toString().replace("-", "")
 
         return buildJsonObject {
-            put("messages", messages)
+            put("messages", JsonArray(messages))
             put("config_name", model)
             put("model", model)
             put("function", "solo_work_lite")