chore(orchestrator): Wave 1 complete — fix merge conflicts, mark tasks done

Fix typecheck: addMessage/findById now require userId (from PR #293).
Mark M2-001/002/005/006 done. All Wave 1 tasks complete (9/65).
PRs #290, #292, #293, #294 merged. Issues #224-226, #232-237 closed.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

apps/gateway/src/chat/chat.gateway.ts

@@ -127,14 +127,17 @@ export class ChatGateway implements OnGatewayInit, OnGatewayConnection, OnGatewa
     // Persist the user message
     if (userId) {
       try {
-        await this.brain.conversations.addMessage({
-          conversationId,
-          role: 'user',
-          content: data.content,
-          metadata: {
-            timestamp: new Date().toISOString(),
+        await this.brain.conversations.addMessage(
+          {
+            conversationId,
+            role: 'user',
+            content: data.content,
+            metadata: {
+              timestamp: new Date().toISOString(),
+            },
           },
-        });
+          userId,
+        );
       } catch (err) {
         this.logger.error(
           `Failed to persist user message for conversation=${conversationId}`,
@@ -257,7 +260,7 @@ export class ChatGateway implements OnGatewayInit, OnGatewayConnection, OnGatewa
    */
   private async ensureConversation(conversationId: string, userId: string): Promise<void> {
     try {
-      const existing = await this.brain.conversations.findById(conversationId);
+      const existing = await this.brain.conversations.findById(conversationId, userId);
       if (!existing) {
         await this.brain.conversations.create({
           id: conversationId,
@@ -341,12 +344,15 @@ export class ChatGateway implements OnGatewayInit, OnGatewayConnection, OnGatewa
           }
 
           this.brain.conversations
-            .addMessage({
-              conversationId,
-              role: 'assistant',
-              content: cs.assistantText,
-              metadata,
-            })
+            .addMessage(
+              {
+                conversationId,
+                role: 'assistant',
+                content: cs.assistantText,
+                metadata,
+              },
+              userId,
+            )
             .catch((err: unknown) => {
               this.logger.error(
                 `Failed to persist assistant message for conversation=${conversationId}`,