refactor(#1375): type subagent list and tail RPC params (#1389)

app/src/main/java/com/m57/hermescontrol/data/ws/SubagentRepository.kt

@@ -3,6 +3,9 @@ package com.m57.hermescontrol.data.ws
 import android.util.Log
 import com.m57.hermescontrol.data.model.SubagentListResponse
 import com.m57.hermescontrol.data.model.SubagentTailResponse
+import com.m57.hermescontrol.data.ws.contract.RpcMethods
+import com.m57.hermescontrol.data.ws.contract.SessionIdParams
+import com.m57.hermescontrol.data.ws.contract.SubagentTailParams
 import kotlinx.serialization.json.Json
 import kotlinx.serialization.json.JsonArray
 import kotlinx.serialization.json.JsonElement
@@ -33,12 +36,11 @@ object SubagentRepository {
         if (sessionId.isBlank()) return null
         return try {
             val result =
-                HermesWsClient
-                    .request(
-                        WsMethods.SUBAGENT_LIST,
-                        mapOf("session_id" to sessionId),
-                        suppressErrorEvent = true,
-                    ).await()
+                HermesWsClient.call(
+                    RpcMethods.SUBAGENT_LIST,
+                    SessionIdParams(sessionId),
+                    suppressErrorEvent = true,
+                )
             decode<SubagentListResponse>(result)
         } catch (e: Exception) {
             Log.w(TAG, "subagent.list request failed for session $sessionId: ${e.message}")
@@ -58,18 +60,12 @@ object SubagentRepository {
     ): SubagentTailResponse? {
         // Contract (SubagentIdParams): session_id and subagent_id are required, extra keys forbidden (#1379).
         if (subagentId.isBlank() || sessionId.isBlank()) return null
-        val params =
-            mapOf<String, Any>(
-                "session_id" to sessionId,
-                "subagent_id" to subagentId,
-            )
         val result =
-            HermesWsClient
-                .request(
-                    WsMethods.SUBAGENT_TAIL,
-                    params,
-                    suppressErrorEvent = true,
-                ).await()
+            HermesWsClient.call(
+                RpcMethods.SUBAGENT_TAIL,
+                SubagentTailParams(sessionId, subagentId),
+                suppressErrorEvent = true,
+            )
         return decode<SubagentTailResponse>(result)
     }
 

app/src/main/java/com/m57/hermescontrol/data/ws/contract/RpcMethod.kt

@@ -331,6 +331,22 @@ object RpcMethods {
             JsonElement.serializer(),
         )
 
+    // Passthrough JsonElement results: callers keep their existing legacy decoders.
+    val SUBAGENT_LIST: RpcMethod<SessionIdParams, JsonElement> =
+        RpcMethod(
+            WsMethods.SUBAGENT_LIST,
+            SessionIdParams.serializer(),
+            JsonElement.serializer(),
+        )
+
+    // Passthrough JsonElement results: callers keep their existing legacy decoders.
+    val SUBAGENT_TAIL: RpcMethod<SubagentTailParams, JsonElement> =
+        RpcMethod(
+            WsMethods.SUBAGENT_TAIL,
+            SubagentTailParams.serializer(),
+            JsonElement.serializer(),
+        )
+
     /** Every typed method. GatewayContractTest iterates this; future migrations append here. */
     val all: List<RpcMethod<*, *>> =
         listOf(
@@ -374,5 +390,7 @@ object RpcMethods {
             CONNECTORS_TOOLS,
             CONNECTION_RESPOND,
             CONNECTORS_OPERATION_WAKE,
+            SUBAGENT_LIST,
+            SUBAGENT_TAIL,
         )
 }

app/src/main/java/com/m57/hermescontrol/data/ws/contract/SubagentTailParams.kt

@@ -0,0 +1,10 @@
+package com.m57.hermescontrol.data.ws.contract
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class SubagentTailParams(
+    @SerialName("session_id") val sessionId: String,
+    @SerialName("subagent_id") val subagentId: String,
+)