feat(opencode): show actual model per turn

apps/mobile/src/features/threads/ThreadFeed.tsx

@@ -1727,6 +1727,15 @@ function renderFeedEntry(
         })}
         {showAssistantMeta ? (
           <View className="mt-1 flex-row items-center gap-1">
+            {message.actualModel ? (
+              <Text
+                accessibilityLabel={`Actual model: ${message.actualModel}`}
+                className="mr-1 max-w-[70%] font-t3-medium text-secondary-foreground text-xs"
+                numberOfLines={1}
+              >
+                Model: {message.actualModel}
+              </Text>
+            ) : null}
             <CopyTextButton
               accessibilityLabel="Copy message"
               text={renderedText}

apps/server/src/orchestration/Layers/ProjectionPipeline.ts

@@ -1170,6 +1170,11 @@ const makeOrchestrationProjectionPipeline = Effect.fn("makeOrchestrationProjecti
             turnId: event.payload.turnId,
             role: event.payload.role,
             text: nextText,
+            ...(event.payload.actualModel !== undefined
+              ? { actualModel: event.payload.actualModel }
+              : previousMessage?.actualModel !== undefined
+                ? { actualModel: previousMessage.actualModel }
+                : {}),
             ...(nextAttachments !== undefined ? { attachments: [...nextAttachments] } : {}),
             ...((event.payload.context ?? previousMessage?.context) !== undefined
               ? { context: event.payload.context ?? previousMessage?.context }

apps/server/src/orchestration/Layers/ProjectionSnapshotQuery.test.ts

@@ -815,9 +815,10 @@ projectionSnapshotLayer("ProjectionSnapshotQuery", (it) => {
       `;
       yield* sql`
         INSERT INTO projection_thread_messages (
-          message_id, thread_id, role, text, attachments_json, context_json, is_streaming, created_at, updated_at
+          message_id, thread_id, role, text, actual_model, attachments_json, context_json,
+          is_streaming, created_at, updated_at
         ) VALUES (${messageId}, ${threadId}, 'user', 'Read these notes',
-          ${attachmentsJson}, ${contextJson}, 0, ${createdAt}, ${createdAt})
+          'openai/gpt-5.6-sol', ${attachmentsJson}, ${contextJson}, 0, ${createdAt}, ${createdAt})
       `;
       yield* sql`
         INSERT INTO projection_thread_messages (
@@ -840,6 +841,7 @@ projectionSnapshotLayer("ProjectionSnapshotQuery", (it) => {
             text: "Read these notes",
             turnId: null,
             streaming: false,
+            actualModel: "openai/gpt-5.6-sol",
             createdAt,
             updatedAt: createdAt,
             attachments,

apps/server/src/orchestration/Layers/ProjectionSnapshotQuery.ts

@@ -34,6 +34,7 @@ import {
   ThreadPullRequestSnapshot,
   ThreadPullRequestStack,
   type ThreadPullRequestLink,
+  TrimmedNonEmptyString,
 } from "@t3tools/contracts";
 import { legacyLinkedPullRequestOf } from "@t3tools/shared/threadPullRequests";
 import * as Arr from "effect/Array";
@@ -112,6 +113,7 @@ const ProjectionProjectDbRowSchema = ProjectionProject.mapFields(
 const ProjectionThreadMessageDbRowSchema = ProjectionThreadMessage.mapFields(
   Struct.assign({
     isStreaming: Schema.Number,
+    actualModel: Schema.NullOr(TrimmedNonEmptyString),
     attachments: Schema.NullOr(Schema.fromJsonString(Schema.Array(ChatAttachment))),
     context: Schema.NullOr(Schema.fromJsonString(OrchestrationMessageContext)),
   }),
@@ -691,6 +693,7 @@ const makeProjectionSnapshotQuery = Effect.gen(function* () {
           turn_id AS "turnId",
           role,
           text,
+          actual_model AS "actualModel",
           attachments_json AS "attachments",
           context_json AS "context",
           is_streaming AS "isStreaming",
@@ -1294,6 +1297,7 @@ const makeProjectionSnapshotQuery = Effect.gen(function* () {
         turn_id AS "turnId",
         role,
         text,
+        actual_model AS "actualModel",
         attachments_json AS "attachments",
         context_json AS "context",
         is_streaming AS "isStreaming",
@@ -1327,6 +1331,7 @@ const makeProjectionSnapshotQuery = Effect.gen(function* () {
           turn_id AS "turnId",
           role,
           text,
+          actual_model AS "actualModel",
           attachments_json AS "attachments",
           context_json AS "context",
           is_streaming AS "isStreaming",
@@ -1740,6 +1745,7 @@ const makeProjectionSnapshotQuery = Effect.gen(function* () {
           turn_id AS "turnId",
           role,
           text,
+          actual_model AS "actualModel",
           attachments_json AS "attachments",
           context_json AS "context",
           is_streaming AS "isStreaming",
@@ -2150,6 +2156,7 @@ pending_approval_requests AS (
                   id: row.messageId,
                   role: row.role,
                   text: row.text,
+                  ...(row.actualModel !== null ? { actualModel: row.actualModel } : {}),
                   ...(row.attachments !== null ? { attachments: row.attachments } : {}),
                   ...(row.context !== null ? { context: row.context } : {}),
                   turnId: row.turnId,
@@ -3277,6 +3284,7 @@ pending_approval_requests AS (
         text: row.text,
         turnId: row.turnId,
         streaming: row.isStreaming === 1,
+        ...(row.actualModel !== null ? { actualModel: row.actualModel } : {}),
         createdAt: row.createdAt,
         updatedAt: row.updatedAt,
         ...(row.attachments !== null ? { attachments: row.attachments } : {}),
@@ -3535,6 +3543,7 @@ pending_approval_requests AS (
             id: row.messageId,
             role: row.role,
             text: row.text,
+            ...(row.actualModel !== null ? { actualModel: row.actualModel } : {}),
             turnId: row.turnId,
             streaming: row.isStreaming === 1,
             createdAt: row.createdAt,