fix(web): resolve build errors from missing navigationMenu and wrong import in generateMrSummary

Replace non-existent `NavigationMenu` imports on the three agents pages with
`BackButton` (sub-pages) or no header component (list page), and correct the
import of `getAISDKLanguageModelAndOptions` in `generateMrSummary.ts` from
`utils.server` to `llm.server` where it actually lives.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: fatmcgav

packages/web/src/app/(app)/agents/configs/[agentId]/page.tsx

@@ -1,5 +1,5 @@
 import { authenticatedPage } from "@/middleware/authenticatedPage";
-import { NavigationMenu } from "@/app/(app)/components/navigationMenu";
+import { BackButton } from "@/app/(app)/components/backButton";
 import { AgentConfigForm } from "../agentConfigForm";
 import { notFound } from "next/navigation";
 import { OrgRole } from "@sourcebot/db";
@@ -39,8 +39,8 @@ export default authenticatedPage(async ({ prisma, org }, { params }: Props) => {
 
     return (
         <div className="flex flex-col items-center overflow-hidden min-h-screen">
-            <NavigationMenu />
             <div className="w-full max-w-3xl px-4 mt-12 mb-24">
+                <BackButton href="/agents" name="Agents" className="mb-6" />
                 <h1 className="text-2xl font-semibold text-foreground mb-8">Edit agent config</h1>
                 <AgentConfigForm
                     initialValues={{

packages/web/src/app/(app)/agents/configs/new/page.tsx

@@ -1,5 +1,5 @@
 import { authenticatedPage } from "@/middleware/authenticatedPage";
-import { NavigationMenu } from "@/app/(app)/components/navigationMenu";
+import { BackButton } from "@/app/(app)/components/backButton";
 import { AgentConfigForm } from "../agentConfigForm";
 import { OrgRole } from "@sourcebot/db";
 
@@ -19,8 +19,8 @@ export default authenticatedPage(async ({ prisma, org }) => {
 
     return (
         <div className="flex flex-col items-center overflow-hidden min-h-screen">
-            <NavigationMenu />
             <div className="w-full max-w-3xl px-4 mt-12 mb-24">
+                <BackButton href="/agents" name="Agents" className="mb-6" />
                 <h1 className="text-2xl font-semibold text-foreground mb-8">New agent config</h1>
                 <AgentConfigForm connections={connections} repos={repos} />
             </div>

packages/web/src/app/(app)/agents/page.tsx

@@ -1,5 +1,4 @@
 import Link from "next/link";
-import { NavigationMenu } from "../components/navigationMenu";
 import { FaCogs } from "react-icons/fa";
 import { env } from "@sourcebot/shared";
 import { authenticatedPage } from "@/middleware/authenticatedPage";
@@ -54,7 +53,6 @@ export default authenticatedPage(async ({ prisma, org }) => {
 
     return (
         <div className="flex flex-col items-center overflow-hidden min-h-screen">
-            <NavigationMenu />
             <div className="w-full max-w-6xl px-4 mt-12 mb-24 space-y-12">
 
                 {/* Integration status cards */}

packages/web/src/features/agents/review-agent/nodes/generateMrSummary.ts

@@ -1,5 +1,6 @@
 import { sourcebot_context, sourcebot_pr_payload } from "@/features/agents/review-agent/types";
-import { getAISDKLanguageModelAndOptions, getConfiguredLanguageModels } from "@/features/chat/utils.server";
+import { getAISDKLanguageModelAndOptions } from "@/features/chat/llm.server";
+import { getConfiguredLanguageModels } from "@/features/chat/utils.server";
 import { validateLogPath } from "@/features/agents/review-agent/nodes/invokeDiffReviewLlm";
 import { env } from "@sourcebot/shared";
 import { generateText } from "ai";