PaperClipAI/server/src/app.ts

import { createDeliveryWorkCoordinator } from "./services/delivery-work-coordinator.js";
import { DELIVERY_QUEUES } from "./services/delivery-work-notifications.js";
import { createLifecycleDriver } from "./services/agent-lifecycle-driver.js";
import { startAgentLifecycle } from "./services/agent-lifecycle.js";
import { idleAdmissionMiddleware, trackIdleRequestHandlers } from "./middleware/idle-admission.js";
import { isIdleTaskDrainActive, trackIdleWork } from "./services/task-admission.js";
import { customerSuccessRoutes } from "./routes/customer-success.js";
import { cloudWarmStandbyMiddleware } from "./middleware/cloud-warm-standby.js";
import type { CloudWarmStandby } from "./services/cloud-warm-standby.js";
import { browserUseRoutes } from "./routes/browser-use.js";
import { browserUseService } from "./services/browser-use.js";
import { slackToolRoutes } from "./routes/slack-tools.js";
import { createPublicMcpOAuth, publicMcpConfig } from "./services/public-mcp/oauth.js";
import { createDotRunnerMcpTools } from "./services/dot-runner-broker.js";
import { agentProfileAvatarRoutes } from "./routes/agent-profile-avatar.js";
import { dotRunnerRoutes } from "./routes/dot-runner.js";
import { createPublicMcpTransfers } from "./services/public-mcp/file-transfers.js";
import { createMcpApiDispatch, createPublicMcpExecutor } from "./services/public-mcp/capabilities.js";
import { createPublicMcpEvents, type PublicMcpEvents } from "./services/public-mcp/events.js";
import { publicMcpIngressRoutes, publicMcpManagementRoutes } from "./routes/public-mcp.js";
import { agentAvatarRoutes } from "./routes/agent-avatars.js";
import { decisionModelRoutes } from "./routes/decision-models.js";
import { aiConnectionRoutes } from "./routes/ai-connections.js";
import { projectToolRoutes } from "./routes/project-tools.js";
import { emailChannelService } from "./services/email-channels.js";
import { emailRoutes, emailWebhookRoutes } from "./routes/email.js";
import { toolActionDeliveryService } from "./services/tool-action-delivery.js";
import { registerAssignedMcpGateway } from "./services/native-runtime/assigned-mcp-tools.js";
import express, { Router, type Request as ExpressRequest } from "express";
import {
  createServer as createHttpServer,
  type Server as HttpServer,
} from "node:http";
import path from "node:path";
import fs from "node:fs";
import { fileURLToPath } from "node:url";
import type { Db } from "@paperclipai/db";
import {
  derivePaperclipViteHmrPort,
  type DeploymentExposure,
  type DeploymentMode,
} from "@paperclipai/shared";
import type { InspectDatabaseBackupHealthOptions } from "./services/database-backup-health.js";
import type { StorageService } from "./storage/types.js";
import { httpLogger, errorHandler } from "./middleware/index.js";
import { actorMiddleware } from "./middleware/auth.js";
import { boardMutationGuard } from "./middleware/board-mutation-guard.js";
import {
  privateHostnameGuard,
  resolvePrivateHostnameAllowSet,
} from "./middleware/private-hostname-guard.js";
import {
  applyTrustProxy,
  parseTrustProxyEnv,
} from "./middleware/trust-proxy.js";
import {
  IMPORT_TRANSFER_SPOOL_SWEEP_INTERVAL_MS,
  resolveDefaultImportTransferSpoolRoot,
  sweepAbandonedImportTransferSpools,
} from "./services/company-import-transfers.js";
import { companyTransferRunService } from "./services/company-transfer-runs.js";
import { healthRoutes } from "./routes/health.js";
import { cloudRuntimeIdentityMiddleware } from "./middleware/cloud-runtime-identity.js";
import { cloudControlMiddleware } from "./middleware/cloud-control.js";
import { cloudRoutes } from "./routes/cloud.js";
import { companyRoutes } from "./routes/companies.js";
import { companySkillRoutes } from "./routes/company-skills.js";
import { companySkillPolicyRoutes } from "./routes/company-skill-policy.js";
import { inboxAgentPolicyRoutes } from "./routes/inbox-agent-policy.js";
import { builtInAgentRoutes } from "./routes/built-in-agents.js";
import { folderRoutes } from "./routes/folders.js";
import { summarySlotRoutes } from "./routes/summary-slots.js";
import { statusCardRoutes } from "./routes/status-cards.js";
import { teamsCatalogRoutes } from "./routes/teams-catalog.js";
import { agentRoutes } from "./routes/agents.js";
import type { SetupTokenSessionService } from "./services/setup-token-session.js";
import {
  buildSetupTokenLoginTransport,
  createProductionSetupTokenSandboxProvider,
  createProductionSetupTokenCleanupStore,
  createSetupTokenSecretWriter,
  createWorkerBoundLoginPtyOpener,
} from "./services/setup-token-transport-binding.js";
import { environmentService } from "./services/environments.js";
import { environmentRuntimeService } from "./services/environment-runtime.js";
import { projectRoutes } from "./routes/projects.js";
import { issueRoutes } from "./routes/issues.js";
import { issueTreeControlRoutes } from "./routes/issue-tree-control.js";
import { caseRoutes } from "./routes/cases.js";
import { fileResourceRoutes } from "./routes/file-resources.js";
import { routineRoutes } from "./routes/routines.js";
import { pipelineRoutes } from "./routes/pipelines.js";
import { environmentRoutes } from "./routes/environments.js";
import { executionWorkspaceRoutes } from "./routes/execution-workspaces.js";
import { goalRoutes } from "./routes/goals.js";
import { onboardingSeedRoutes } from "./routes/onboarding-seed.js";
import { boardChatRoutes } from "./routes/board-chat.js";
import { approvalRoutes } from "./routes/approvals.js";
import { secretRoutes } from "./routes/secrets.js";
import { toolAccessRoutes } from "./routes/tool-access.js";
import {
  chatChannelRoutes,
  chatWebhookRoutes,
} from "./routes/chat-channels.js";
import { smokeLabRoutes } from "./routes/smoke-lab.js";
import { costRoutes } from "./routes/costs.js";
import { agentCommentaryRoutes } from "./routes/agent-commentary.js";
import { activityRoutes } from "./routes/activity.js";
import { dashboardRoutes } from "./routes/dashboard.js";
import { attentionRoutes } from "./routes/attention.js";
import { decisionTrainingRoutes } from "./routes/decision-training.js";
import { decisionRoutes } from "./routes/decisions.js";
import { decisionQueueRoutes } from "./routes/decision-queues.js";
import type { DecisionServiceOptions } from "./services/decisions.js";
import { userProfileRoutes } from "./routes/user-profiles.js";
import { sidebarBadgeRoutes } from "./routes/sidebar-badges.js";
import { sidebarPreferenceRoutes } from "./routes/sidebar-preferences.js";
import { announcementRoutes } from "./routes/announcements.js";
import { serverVersion } from "./version.js";
import { primaryAgentRoutes } from "./routes/primary-agent.js";
import { resourceMembershipRoutes } from "./routes/resource-memberships.js";
import { inboxDismissalRoutes } from "./routes/inbox-dismissals.js";
import { instanceSettingsRoutes } from "./routes/instance-settings.js";
import { instanceSettingsService } from "./services/instance-settings.js";
import { openApiRoutes } from "./routes/openapi.js";
import {
  instanceDatabaseBackupRoutes,
  type InstanceDatabaseBackupService,
} from "./routes/instance-database-backups.js";
import { llmRoutes } from "./routes/llms.js";
import { authRoutes } from "./routes/auth.js";
import { assetRoutes } from "./routes/assets.js";
import { accessRoutes } from "./routes/access.js";
import { pluginRoutes } from "./routes/plugins.js";
import {
  mcpGatewayProtocolRoutes,
  toolGatewayRoutes,
} from "./routes/tool-gateway.js";
import {
  connectionIntentBoardRoutes,
  runtimeConnectionIntentRoutes,
} from "./routes/connection-intents.js";
import { adapterRoutes } from "./routes/adapters.js";
import { managedAgentProfileRoutes } from "./routes/managed-agent-profiles.js";
import { remoteAgentProfileRoutes } from "./routes/remote-agent-profiles.js";
import { pluginUiStaticRoutes } from "./routes/plugin-ui-static.js";
import { readBrandedStaticIndexHtml } from "./static-index-html.js";
import { staticUiCacheControl } from "./static-ui-cache.js";
import { staticUiCompression } from "./middleware/static-ui-compression.js";
import { applyUiBranding } from "./ui-branding.js";
import { logger } from "./middleware/logger.js";
import {
  DEFAULT_LOCAL_PLUGIN_DIR,
  pluginLoader,
  type PluginLoader,
} from "./services/plugin-loader.js";
import {
  SELF_HOSTED_AUTO_INSTALL_KEYS,
  BUNDLED_PLUGIN_CATALOG,
  ensureBundledPlugins,
  resolveBundledCatalogRoot,
  resolveBundledPluginInstalls,
} from "./services/bundled-plugins.js";
import { readDistributionPluginCatalog, distributionPluginActivationGuard } from "./services/distribution-plugin-catalog.js";
import {
  createPluginWorkerManager,
  type PluginWorkerManager,
} from "./services/plugin-worker-manager.js";
import { createPluginJobScheduler } from "./services/plugin-job-scheduler.js";
import { pluginJobStore } from "./services/plugin-job-store.js";
import { createPluginToolDispatcher } from "./services/plugin-tool-dispatcher.js";
import { createToolGatewayService } from "./services/tool-gateway.js";
import { toolAccessService } from "./services/tool-access.js";
import { chatChannelService } from "./services/chat-channels.js";
import { deliverNativeQuestionResponse } from "./services/native-runtime/native-question-bridge.js";
import { enqueueChatRunMilestones } from "./services/chat-run-publications.js";
import {
  createCoalescedAsyncTrigger,
  isChatPublicationCommitSignal,
} from "./services/chat-publication-reconciliation.js";
import { subscribeAllCompanyLiveEvents } from "./services/live-events.js";
import { heartbeatService } from "./services/heartbeat.js";
import { pluginLifecycleManager } from "./services/plugin-lifecycle.js";
import { createPluginJobCoordinator } from "./services/plugin-job-coordinator.js";
import {
  buildHostServices,
  flushPluginLogBuffer,
} from "./services/plugin-host-services.js";
import { createPluginEventBus } from "./services/plugin-event-bus.js";
import { setPluginEventBus } from "./services/activity-log.js";
import { createPluginDevWatcher } from "./services/plugin-dev-watcher.js";
import { createPluginHostServiceCleanup } from "./services/plugin-host-service-cleanup.js";
import { pluginRegistryService } from "./services/plugin-registry.js";
import { createHostClientHandlers } from "@paperclipai/plugin-sdk";
import type { BetterAuthSessionResult } from "./auth/better-auth.js";
import { createCachedViteHtmlRenderer } from "./vite-html-renderer.js";
import {
  DEFAULT_JSON_BODY_LIMIT,
  PORTABLE_JSON_BODY_LIMIT,
} from "./http/body-limits.js";
import { COMPANY_IMPORT_API_PATH } from "./routes/company-import-paths.js";
import { apiCompression } from "./middleware/api-compression.js";
import { chatWebhookBodyParser } from "./middleware/chat-webhook-body.js";
import { createChatWebhookDiagnostics } from "./services/chat-webhook-diagnostics.js";

type UiMode = "none" | "static" | "vite-dev";
const FEEDBACK_EXPORT_FLUSH_INTERVAL_MS = 5_000;
const CHAT_PUBLICATION_FLUSH_INTERVAL_MS = 1_000;
const VITE_DEV_ASSET_PREFIXES = [
  "/@fs/",
  "/@id/",
  "/@react-refresh",
  "/@vite/",
  "/assets/",
  "/node_modules/",
  "/src/",
];
const VITE_DEV_STATIC_PATHS = new Set([
  "/apple-touch-icon.png",
  "/favicon-16x16.png",
  "/favicon-32x32.png",
  "/favicon.ico",
  "/favicon.svg",
  "/site.webmanifest",
  "/sw.js",
]);

export function isDatabaseConnectionUnavailableError(err: unknown): boolean {
  const error = err as { code?: unknown; message?: unknown; cause?: unknown };
  if (error?.code === "ECONNREFUSED") return true;
  return Boolean(
    error?.cause && isDatabaseConnectionUnavailableError(error.cause),
  );
}

export function resolveViteHmrPort(serverPort: number): number {
  return derivePaperclipViteHmrPort(serverPort);
}

export function resolveViteHmrHost(bindHost: string): string | undefined {
  const normalized = bindHost.trim().toLowerCase();
  if (
    normalized === "0.0.0.0" ||
    normalized === "::" ||
    normalized === "127.0.0.1" ||
    normalized === "::1" ||
    normalized === "localhost"
  )
    return undefined;
  return bindHost;
}

export function resolveViteHmrProtocol(
  value: string | undefined,
): "ws" | "wss" | undefined {
  if (!value) return undefined;
  if (value === "ws" || value === "wss") return value;
  throw new Error("PAPERCLIP_VITE_HMR_PROTOCOL must be ws or wss");
}

export function listenViteHmrServer(
  server: HttpServer,
  port: number,
  bindHost: string,
): Promise<void> {
  return new Promise((resolve, reject) => {
    const onError = (error: Error) => {
      server.off("listening", onListening);
      reject(error);
    };
    const onListening = () => {
      server.off("error", onError);
      resolve();
    };
    server.once("error", onError);
    server.once("listening", onListening);
    server.listen(port, bindHost);
  });
}

export function shouldServeViteDevHtml(req: ExpressRequest): boolean {
  const pathname = req.path;
  if (VITE_DEV_STATIC_PATHS.has(pathname)) return false;
  if (VITE_DEV_ASSET_PREFIXES.some((prefix) => pathname.startsWith(prefix)))
    return false;
  return req.accepts(["html"]) === "html";
}

export function shouldEnablePrivateHostnameGuard(opts: {
  deploymentMode: DeploymentMode;
  deploymentExposure: DeploymentExposure;
}): boolean {
  return (
    opts.deploymentExposure === "private" &&
    (opts.deploymentMode === "local_trusted" ||
      opts.deploymentMode === "authenticated")
  );
}

type ChatReconciliationLane =
  | "provider runtimes"
  | "deliveries"
  | "GitHub webhook recovery"
  | "run milestones"
  | "publications"
  | "Slack file receipts"
  | "Slack session status";

/**
 * Provider recovery can wait on slow external I/O. Keep each existing durable
 * lane single-flight without making an optional provider effect suppress the
 * next publication sweep for every endpoint.
 */
export function createChatReconciliationCoordinator(input: {
  reconcileProviderRuntimes: () => Promise<unknown>;
  processPendingDeliveries: () => Promise<unknown>;
  processFailedGitHubWebhookDeliveries?: () => Promise<unknown>;
  projectRunMilestones: () => Promise<number>;
  flushPublications: () => Promise<unknown>;
  processPendingSlackFileUploadReceipts: () => Promise<unknown>;
  processPendingSlackSessionSyncs: () => Promise<unknown>;
  onError: (lane: ChatReconciliationLane, error: unknown) => void;
}) {
  let stopped = false;
  const inFlight = new Map<ChatReconciliationLane, Promise<void>>();
  const publicationReconciliation = createCoalescedAsyncTrigger({
    run: input.flushPublications,
    onError: (error) => input.onError("publications", error),
  });
  const milestoneReconciliation = createCoalescedAsyncTrigger({
    run: async () => {
      const inserted = await input.projectRunMilestones();
      // Existing final/question publications never wait on this optional
      // projection. Newly committed milestones get a bounded dispatch wake;
      // an empty/contended pass does not create a self-sustaining loop.
      if (inserted > 0) publicationReconciliation.notify();
    },
    onError: (error) => input.onError("run milestones", error),
  });
  const start = (
    lane: ChatReconciliationLane,
    task: () => Promise<unknown>,
  ) => {
    if (stopped || inFlight.has(lane)) return;
    const pending = Promise.resolve()
      .then(task)
      .then(() => undefined)
      .catch((error) => input.onError(lane, error))
      .finally(() => {
        if (inFlight.get(lane) === pending) inFlight.delete(lane);
      });
    inFlight.set(lane, pending);
  };
  return {
    reconcile() {
      if (stopped) return;
      start("provider runtimes", input.reconcileProviderRuntimes);
      start("deliveries", input.processPendingDeliveries);
      if (input.processFailedGitHubWebhookDeliveries) {
        start(
          "GitHub webhook recovery",
          input.processFailedGitHubWebhookDeliveries,
        );
      }
      milestoneReconciliation.poll();
      publicationReconciliation.poll();
      start("Slack file receipts", input.processPendingSlackFileUploadReceipts);
      start("Slack session status", input.processPendingSlackSessionSyncs);
    },
    notifyPublications() {
      milestoneReconciliation.notify();
      publicationReconciliation.notify();
    },
    stop() {
      stopped = true;
      milestoneReconciliation.stop();
      publicationReconciliation.stop();
    },
    async drain() {
      await Promise.allSettled([
        ...inFlight.values(),
        milestoneReconciliation.drain(),
      ]);
      // Projecting the final batch can notify dispatch after an earlier drain
      // would have returned. Join dispatch only after its producer has drained.
      await publicationReconciliation.drain();
    },
  };
}

export function createManagedBundledPluginWorkerRecovery(input: {
  managedBundledPluginKeys: readonly string[];
  workerManager: Pick<
    PluginWorkerManager,
    "getWorker" | "isRunning" | "stopWorker"
  >;
  getLoader: () => Pick<PluginLoader, "loadSingle"> | null;
}): (plugin: { id: string; pluginKey: string }) => Promise<boolean> {
  const recoverablePluginKeys = new Set(input.managedBundledPluginKeys);
  const inFlightStarts = new Map<string, Promise<boolean>>();

  // A failed attempt can leave behind the dead handle it registered (e.g. the
  // worker process died during initialize, which kills the process without
  // scheduling a restart). No pre-existing handle survives to a recovery
  // attempt — recovery only starts when getWorker() was empty — so discarding
  // the dead handle lets a later capability request retry instead of being
  // blocked by the handle-presence gate until the process restarts. Handles
  // in starting/running/backoff states belong to the worker manager's own
  // lifecycle and are left alone.
  const discardDeadRecoveryHandle = async (plugin: {
    id: string;
    pluginKey: string;
  }) => {
    const handle = input.workerManager.getWorker(plugin.id);
    if (!handle || (handle.status !== "crashed" && handle.status !== "stopped"))
      return;
    try {
      await input.workerManager.stopWorker(plugin.id);
    } catch (err) {
      logger.warn(
        {
          pluginId: plugin.id,
          pluginKey: plugin.pluginKey,
          err: err instanceof Error ? err.message : String(err),
        },
        "failed to discard dead plugin worker handle after recovery failure",
      );
    }
  };

  return async (plugin) => {
    if (!recoverablePluginKeys.has(plugin.pluginKey)) return false;

    const inFlight = inFlightStarts.get(plugin.id);
    if (inFlight) return inFlight;

    const startPromise = (async () => {
      if (input.workerManager.getWorker(plugin.id)) {
        return input.workerManager.isRunning(plugin.id);
      }

      const loader = input.getLoader();
      if (!loader) return false;

      try {
        const result = await loader.loadSingle(plugin.id, {
          markErrorOnFailure: false,
        });
        if (
          result.success === true ||
          input.workerManager.isRunning(plugin.id)
        ) {
          return true;
        }
        await discardDeadRecoveryHandle(plugin);
        return false;
      } catch (err) {
        logger.warn(
          {
            pluginId: plugin.id,
            pluginKey: plugin.pluginKey,
            err: err instanceof Error ? err.message : String(err),
          },
          "managed bundled plugin lazy worker recovery failed",
        );
        await discardDeadRecoveryHandle(plugin);
        throw err;
      }
    })();

    inFlightStarts.set(plugin.id, startPromise);
    try {
      return await startPromise;
    } finally {
      if (inFlightStarts.get(plugin.id) === startPromise) {
        inFlightStarts.delete(plugin.id);
      }
    }
  };
}

export async function createApp(
  db: Db,
  opts: {
    cloudWarmStandby?: CloudWarmStandby;
    uiMode: UiMode;
    serverPort: number;
    storageService: StorageService;
    feedbackExportService?: {
      hasPendingFeedbackTraces(): Promise<boolean>;
      flushPendingFeedbackTraces(input?: {
        companyId?: string;
        traceId?: string;
        limit?: number;
        now?: Date;
        signal?: AbortSignal;
      }): Promise<unknown>;
    };
    databaseBackupService?: InstanceDatabaseBackupService;
    prepareIdleDatabaseBackup?: () => Promise<boolean>;
    databaseBackupHealth?: InspectDatabaseBackupHealthOptions;
    deploymentMode: DeploymentMode;
    deploymentExposure: DeploymentExposure;
    allowedHostnames: string[];
    bindHost: string;
    authPublicBaseUrl?: string;
    chatWebhookPublicBaseUrl?: string;
    authReady: boolean;
    companyDeletionEnabled: boolean;
    announcements?: { enabled: boolean; feedUrl: string };
    instanceId?: string;
    hostVersion?: string;
    localPluginDir?: string;
    pluginMigrationDb?: Db;
    pluginWorkerManager?: PluginWorkerManager;
    decisionServiceOptions: DecisionServiceOptions;
    betterAuthHandler?: express.RequestHandler;
    resolveSession?: (
      req: ExpressRequest,
    ) => Promise<BetterAuthSessionResult | null>;
    /**
     * `plugins.autoInstall` from the managed config (PAPERCLIP_MANAGED_CONFIG).
     * `null`/absent ⇒ self-hosted: only the built-in kubernetes bundle is
     * ensured, exactly as before. A managed list is resolved against the
     * bundled catalog fail-to-start (see services/bundled-plugins.ts).
     */
    managedPluginAutoInstall?: readonly string[] | null;
    /** Test override for the bundled plugin catalog root. */
    bundledPluginCatalogRoot?: string;
  },
) {
  const app = express();
  app.use(idleAdmissionMiddleware);
  const staticUi = express.Router();
  app.locals.paperclipDb = db;
  const isWarmStandby = opts.cloudWarmStandby ?? (() => false);
  const health = healthRoutes(db, {
    deploymentMode: opts.deploymentMode,
    deploymentExposure: opts.deploymentExposure,
    authReady: opts.authReady,
    companyDeletionEnabled: opts.companyDeletionEnabled,
    databaseBackupHealth: opts.databaseBackupHealth,
    isWarmStandby,
  });
  const captureRawBody = (
    req: express.Request,
    _res: express.Response,
    buf: Buffer,
  ) => {
    (req as unknown as { rawBody: Buffer }).rawBody = buf;
  };

  // Respect the operator's `TRUST_PROXY` env var (see middleware/trust-proxy.ts).
  // Default is unset → Express trusts nothing, which is the only safe choice
  // when the server may be reachable without a known reverse proxy in front.
  applyTrustProxy(app, parseTrustProxyEnv(process.env.TRUST_PROXY));

  app.use(
    COMPANY_IMPORT_API_PATH,
    express.json({
      limit: PORTABLE_JSON_BODY_LIMIT,
      verify: captureRawBody,
    }),
  );
  // Chat providers sign the exact request bytes. Capture every webhook media
  // type before the global JSON parser so JSON events and form-encoded action
  // callbacks are verified against the provider's original body.
  app.use(
    "/api/chat-webhooks",
    createChatWebhookDiagnostics(),
    chatWebhookBodyParser,
  );
  const jsonBodyParser = express.json({ limit: DEFAULT_JSON_BODY_LIMIT, verify: captureRawBody });
  // File tickets authenticate before parsing bytes; JSON attachments must remain bytes too.
  app.use((req, res, next) => req.path === "/mcp/files/upload" ? next() : jsonBodyParser(req, res, next));
  app.use("/api", apiCompression());
  app.use(httpLogger);
  const privateHostnameGateEnabled = shouldEnablePrivateHostnameGuard({
    deploymentMode: opts.deploymentMode,
    deploymentExposure: opts.deploymentExposure,
  });
  const privateHostnameAllowSet = resolvePrivateHostnameAllowSet({
    allowedHostnames: opts.allowedHostnames,
    bindHost: opts.bindHost,
  });
  app.use(
    privateHostnameGuard({
      enabled: privateHostnameGateEnabled,
      allowedHostnames: opts.allowedHostnames,
      bindHost: opts.bindHost,
    }),
  );
  let mcpConfig: ReturnType<typeof publicMcpConfig> = null;
  try { mcpConfig = publicMcpConfig(process.env, opts.authPublicBaseUrl); }
  catch { logger.warn("Assistant connections require an HTTPS public URL (HTTP loopback is allowed for development)."); }
  const publicMcpOAuth = mcpConfig ? createPublicMcpOAuth(db, mcpConfig) : null;
  const publicMcpIngress = Router();

  app.use(cloudRuntimeIdentityMiddleware(db));
  // A signed claim above commits identity before any normal request can seed
  // company data. Unclaimed probes bypass session resolution as well as SQL.
  app.use(cloudWarmStandbyMiddleware(isWarmStandby, health, staticUi));
  app.use("/api/customer-success/v1", customerSuccessRoutes(db, opts.storageService));
  app.use(publicMcpIngress);
  // Connection-intent tools carry their own short-lived, run-bound bearer and
  // must be reachable by remote adapters that intentionally do not receive an
  // agent API key. Every request revalidates the active heartbeat row.
  app.use(runtimeConnectionIntentRoutes(db));
  app.use(
    actorMiddleware(db, {
      deploymentMode: opts.deploymentMode,
      resolveSession: opts.resolveSession,
    }),
  );
  // After the actor middleware on purpose: a valid Cloud control assertion
  // REPLACES whatever actor the request otherwise resolved to, and only on
  // the one endpoint it authorizes (see the middleware for the contract).
  app.use(cloudControlMiddleware());
  app.use("/api/auth", authRoutes(db));
  if (opts.betterAuthHandler) {
    app.all("/api/auth/{*authPath}", opts.betterAuthHandler);
  }
  app.use(llmRoutes(db));

  const hostServicesDisposers = new Map<string, () => void>();
  const workerManager = opts.pluginWorkerManager ?? createPluginWorkerManager();
  let lifecyclePluginsReady = false;
  const agentLifecycle = startAgentLifecycle(db, createLifecycleDriver(db, workerManager), () => lifecyclePluginsReady && !isWarmStandby() && !isIdleTaskDrainActive());
  const connectionIntentHeartbeat = heartbeatService(db, {
    pluginWorkerManager: workerManager,
  });
  const chatChannels = chatChannelService(db, {
    deferWebhookProcessing: true,
    heartbeat: connectionIntentHeartbeat,
    publicBaseUrl: opts.authPublicBaseUrl,
    webhookPublicBaseUrl: opts.chatWebhookPublicBaseUrl,
    resolveNativeQuestion: (interaction) =>
      deliverNativeQuestionResponse(db, interaction),
    storage: opts.storageService,
  });
  // Provider-authenticated ingress is intentionally outside the board
  // mutation guard. The Chat SDK adapter verifies the provider signature
  // before Paperclip persists or acts on any event.
  const emailChannels = emailChannelService(db, {
    isBackgroundWorkEnabled: () => !isWarmStandby() && !isIdleTaskDrainActive(),
    heartbeat: connectionIntentHeartbeat,
    storage: opts.storageService,
    publicBaseUrl: opts.chatWebhookPublicBaseUrl ?? opts.authPublicBaseUrl,
  });
  app.use(emailWebhookRoutes(emailChannels));
  app.use(chatWebhookRoutes(chatChannels));
  // The instance validates single-use registration state and its trusted
  // current origin. This exact GET is the only public setup return.
  app.get("/api/chat-github/manifest/callback", async (req, res) => {
    res.set("Cache-Control", "no-store");
    res.set("Referrer-Policy", "no-referrer");
    const redirect = await chatChannels.completeGitHubRegistration(String(req.query.state ?? ""), String(req.query.code ?? ""));
    res.redirect(303, redirect);
  });
  const managedAutoInstallKeys = opts.managedPluginAutoInstall ?? null;
  const bundledCatalogRoot =
    opts.bundledPluginCatalogRoot ?? resolveBundledCatalogRoot(process.env);
  const distributionPlugins = readDistributionPluginCatalog(bundledCatalogRoot, BUNDLED_PLUGIN_CATALOG);
  const bundledPluginInstalls = resolveBundledPluginInstalls(
    managedAutoInstallKeys ?? SELF_HOSTED_AUTO_INSTALL_KEYS,
    {
      catalogRoot: bundledCatalogRoot,
      env: process.env,
      enforceCatalogRoot: managedAutoInstallKeys !== null,
      distributionPlugins,
    },
  );
  const managedBundledPluginKeys =
    managedAutoInstallKeys !== null
      ? bundledPluginInstalls.map((install) => install.pluginKey)
      : [];
  let runtimePluginLoader: Pick<PluginLoader, "loadSingle"> | null = null;
  // A sibling process can install a managed bundled plugin while this process
  // skips the mid-install row, then finish the row after this process's
  // loadAll() pass. The capabilities route may recover only those managed
  // bundles by starting their ready-but-unstarted worker lazily.
  const recoverManagedBundledPluginWorker =
    managedAutoInstallKeys !== null
      ? createManagedBundledPluginWorkerRecovery({
          managedBundledPluginKeys,
          workerManager,
          getLoader: () => runtimePluginLoader,
        })
      : undefined;

  // Mount API routes
  const api = Router();
  const agentAvatars = agentAvatarRoutes();
  api.use(agentAvatars.router);
  api.use(boardMutationGuard());
  api.use("/health", health);
  api.use(openApiRoutes());
  api.use("/cloud", cloudRoutes());
  api.use("/companies", companyRoutes(db, opts.storageService));
  api.use(llmRoutes(db));
  api.use(folderRoutes(db));
  api.use(companySkillRoutes(db));
  api.use(companySkillPolicyRoutes(db));
  api.use(inboxAgentPolicyRoutes(db));
  api.use(agentCommentaryRoutes(db));
  api.use(builtInAgentRoutes(db));
  api.use(summarySlotRoutes(db));
  api.use(statusCardRoutes(db));
  api.use(teamsCatalogRoutes(db));
  // The setup-token login session service. The router builds it and hands it
  // back through the callback below, so the shutdown hook can cancel every live
  // session (SR-4).
  let setupTokenLoginService: SetupTokenSessionService | null = null;
  // The dedicated proxy IP or CIDR allowlist for the confidential setup-token
  // login responses (SR-7). The global `TRUST_PROXY` setting does not satisfy
  // the guard; an operator sets this allowlist to the real TLS-terminating
  // proxy addresses. An empty value keeps the confidential responses on direct
  // TLS (or a `local_trusted` loopback peer) only.
  const setupTokenLoginProxyAllowlist = (
    process.env.CLAUDE_LOGIN_TRUSTED_PROXIES ?? ""
  )
    .split(",")
    .map((entry) => entry.trim())
    .filter((entry) => entry.length > 0);
  // The explicit operator declaration that a platform edge terminates TLS for
  // every client request (SR-7). This complements the allowlist for managed
  // platforms (Railway, Render, Fly, and the like) where the app socket is
  // always plain HTTP and the edge-proxy peer addresses are not stable or
  // documented, so `CLAUDE_LOGIN_TRUSTED_PROXIES` cannot express them. It is a
  // dedicated, single-purpose setting; the guard still never reads the global
  // `TRUST_PROXY` value.
  const setupTokenLoginEdgeTlsTerminated = /^(1|true|yes|on)$/i.test(
    (process.env.CLAUDE_LOGIN_EDGE_TLS_TERMINATED ?? "").trim(),
  );
  // Bind the production setup-token login transport. It carries the live lease
  // manager, the login-process factory over the sandbox pseudo-terminal, and the
  // durable cleanup store. The factory passes only the fixed command
  // `CLAUDE_SETUP_TOKEN_COMMAND`; it never reads a command from a
  // route, a request body, or an adapter configuration. The durable store and the
  // startup reaper are live now, so a restart reaps a leftover lease.
  //
  // The live sandbox pseudo-terminal opener binds inside the sandbox provider
  // worker, so the server process does not hold the raw sandbox process. The
  // opener drives the worker through the plugin worker manager route gate.
  // The manager mints a host-owned route identifier, permits one
  // active credential pseudo-terminal per worker, binds the worker session
  // identifier one time for output only, and terminalizes the route on every open
  // failure path. With the opener supplied, the provider acquires a lease and the
  // start route drives a live login instead of the fixed 503.
  const setupTokenLoginTransport = buildSetupTokenLoginTransport({
    sandbox: createProductionSetupTokenSandboxProvider({
      environments: environmentService(db),
      environmentRuntime: environmentRuntimeService(db, {
        pluginWorkerManager: workerManager,
      }),
      openLivePtySession: createWorkerBoundLoginPtyOpener({
        workerManager,
        environments: environmentService(db),
        log: (line) => logger.info(line),
      }),
      log: (line) => logger.info(line),
    }),
    store: createProductionSetupTokenCleanupStore(db),
    // Bind the atomic credential-claim writer, so a completed login transitions
    // the durable row to `stored` and stores the minted token in one control-plane
    // transaction. The writer reads the company and the owner only from the
    // immutable session scope. The confirm-replacement flow owns rotation. Without
    // this writer the router falls back to the deferred, fail-closed 503 and never
    // stores the token.
    completeCredential: createSetupTokenSecretWriter({ db }),
    // Forward the login runner diagnostic lines to the server logger. The
    // runner is the sole producer, and every line is a fixed, non-secret
    // literal. Without this sink the diagnostics fall back to a no-op in
    // production, so a failed login leaves no log trail.
    log: (line) => logger.info(line),
  });
  api.use(
    agentRoutes(db, {
      chatRunRetries: chatChannels,
      pluginWorkerManager: workerManager,
      deploymentMode: opts.deploymentMode,
      confidentialProxyAllowlist: setupTokenLoginProxyAllowlist,
      confidentialEdgeTlsTerminated: setupTokenLoginEdgeTlsTerminated,
      setupTokenLogin: setupTokenLoginTransport,
      onSetupTokenLoginService: (service) => {
        // Capture the service, so the graceful-shutdown hook cancels every live
        // session and releases each lease. The standalone scheduled reaper owns
        // the startup and interval lease cleanup now (SR-4).
        setupTokenLoginService = service;
      },
    }),
  );
  api.use(assetRoutes(db, opts.storageService));
  api.use(agentProfileAvatarRoutes(db, opts.storageService));
  api.use(projectToolRoutes(db));
  api.use(projectRoutes(db));
  api.use(caseRoutes(db, opts.storageService));
  api.use(issueTreeControlRoutes(db, { pluginWorkerManager: workerManager }));
  api.use(fileResourceRoutes(db));
  api.use(routineRoutes(db, { pluginWorkerManager: workerManager }));
  api.use(pipelineRoutes(db));
  api.use(
    environmentRoutes(db, {
      pluginWorkerManager: workerManager,
      recoverMissingPluginWorker: recoverManagedBundledPluginWorker
        ? {
            pluginKeys: managedBundledPluginKeys,
            startWorker: recoverManagedBundledPluginWorker,
          }
        : undefined,
    }),
  );
  api.use(executionWorkspaceRoutes(db, { pluginWorkerManager: workerManager }));
  api.use(emailRoutes(db, emailChannels));
  api.use(goalRoutes(db));
  api.use(onboardingSeedRoutes(db));
  api.use(boardChatRoutes(db, { deploymentMode: opts.deploymentMode }));
  api.use(approvalRoutes(db, { pluginWorkerManager: workerManager }));
  api.use(secretRoutes(db));
  api.use(managedAgentProfileRoutes(db));
  api.use(remoteAgentProfileRoutes(db));
  api.use(
    chatChannelRoutes(db, {
      heartbeat: connectionIntentHeartbeat,
      publicBaseUrl: opts.authPublicBaseUrl,
      storage: opts.storageService,
      service: chatChannels,
    }),
  );
  const trustedLocalStdioRuntimeHost =
    process.env.PAPERCLIP_TRUSTED_MCP_RUNTIME_HOST ??
    process.env.PAPERCLIP_TOOL_RUNTIME_TRUSTED_HOST ??
    null;
  api.use(costRoutes(db, { pluginWorkerManager: workerManager }));
  api.use(activityRoutes(db));
  api.use(dashboardRoutes(db));
  api.use(attentionRoutes(db));
  api.use(decisionTrainingRoutes(db));
  api.use(decisionRoutes(db, opts.decisionServiceOptions));
  api.use(decisionQueueRoutes(db));
  api.use(userProfileRoutes(db));
  api.use(sidebarBadgeRoutes(db));
  api.use(sidebarPreferenceRoutes(db));
  api.use(announcementRoutes(db, { ...opts.announcements, version: opts.hostVersion ?? serverVersion }));
  api.use(resourceMembershipRoutes(db));
  api.use(primaryAgentRoutes(db));
  api.use(inboxDismissalRoutes(db));
  api.use(instanceSettingsRoutes(db, workerManager, opts.prepareIdleDatabaseBackup));
  if (opts.databaseBackupService) {
    api.use(instanceDatabaseBackupRoutes(opts.databaseBackupService));
  }
  const pluginRegistry = pluginRegistryService(db);
  const eventBus = createPluginEventBus();
  setPluginEventBus(eventBus);
  const jobStore = pluginJobStore(db);
  const lifecycle = pluginLifecycleManager(db, { workerManager });
  const scheduler = createPluginJobScheduler({
    isBackgroundWorkEnabled: () => !isWarmStandby() && !isIdleTaskDrainActive(),
    db,
    jobStore,
    workerManager,
  });
  const toolDispatcher = createPluginToolDispatcher({
    workerManager,
    lifecycleManager: lifecycle,
    db,
  });
  const gatewayOAuthAccess = toolAccessService(db, {
    deploymentMode: opts.deploymentMode,
    deploymentExposure: opts.deploymentExposure,
    trustedLocalStdioRuntimeHost,
  });
  const toolActionDeliveries = toolActionDeliveryService(db, heartbeatService(db, { pluginWorkerManager: workerManager }));
  const toolGateway = createToolGatewayService(db, {
    onToolActionSettled: (id) => toolActionDeliveries.deliver(id),
    pluginToolDispatcher: toolDispatcher,
    deploymentMode: opts.deploymentMode,
    deploymentExposure: opts.deploymentExposure,
    trustedLocalStdioRuntimeHost,
    oauthGrantRefresher: (input) =>
      gatewayOAuthAccess.refreshOAuthGrantCredentials(input),
  });
  // Issue routes are intentionally mounted after the gateway is constructed because
  // issue approval endpoints delegate to it. The intervening routers use distinct
  // route prefixes, so this dependency does not change issue-route precedence.
  api.use(issueRoutes(db, opts.storageService, {
    chatRunRetries: chatChannels,
    pluginWorkerManager: workerManager,
    approveToolActionRequest: (input) => toolGateway.approveActionRequest(input),
    declineToolActionRequest: (input) => toolGateway.declineActionRequest(input),
  }));
  api.use(slackToolRoutes(db, opts.authPublicBaseUrl));
  app.locals.toolGateway = toolGateway;
  registerAssignedMcpGateway(db, toolGateway);
  app.locals.toolActionDeliveries = toolActionDeliveries;
  app.use(mcpGatewayProtocolRoutes(toolGateway));
  api.use(decisionModelRoutes(db));
  api.use(aiConnectionRoutes(db, { deploymentMode: opts.deploymentMode, deploymentExposure: opts.deploymentExposure, trustedLocalStdioRuntimeHost }));
  api.use(
    toolAccessRoutes(db, {
      deploymentMode: opts.deploymentMode,
      deploymentExposure: opts.deploymentExposure,
      authPublicBaseUrl: opts.authPublicBaseUrl,
      trustedLocalStdioRuntimeHost,
      toolGateway,
      connectionIntentHeartbeat,
    }),
  );
  api.use(connectionIntentBoardRoutes(db, connectionIntentHeartbeat));
  api.use(
    smokeLabRoutes(db, {
      deploymentMode: opts.deploymentMode,
      deploymentExposure: opts.deploymentExposure,
    }),
  );
  const jobCoordinator = createPluginJobCoordinator({
    db,
    lifecycle,
    scheduler,
    jobStore,
  });
  const hostServiceCleanup = createPluginHostServiceCleanup(
    lifecycle,
    hostServicesDisposers,
  );
  let viteHtmlRenderer: ReturnType<typeof createCachedViteHtmlRenderer> | null =
    null;
  let viteDevServer: { close(): Promise<void> } | null = null;
  let viteHmrServer: HttpServer | null = null;
  const loader = pluginLoader(
    db,
    {
      localPluginDir: opts.localPluginDir ?? DEFAULT_LOCAL_PLUGIN_DIR,
      migrationDb: opts.pluginMigrationDb,
      assertPackageActivation: distributionPluginActivationGuard(bundledCatalogRoot, distributionPlugins, managedAutoInstallKeys),
    },
    {
      workerManager,
      eventBus,
      jobScheduler: scheduler,
      jobStore,
      toolDispatcher,
      lifecycleManager: lifecycle,
      instanceInfo: {
        instanceId: opts.instanceId ?? "default",
        hostVersion: opts.hostVersion ?? serverVersion,
        deploymentMode: opts.deploymentMode,
        deploymentExposure: opts.deploymentExposure,
      },
      buildHostHandlers: (pluginId, manifest) => {
        const notifyWorker = (method: string, params: unknown) => {
          const handle = workerManager.getWorker(pluginId);
          if (handle) handle.notify(method, params);
        };
        const services = buildHostServices(
          db,
          pluginId,
          manifest.id,
          eventBus,
          notifyWorker,
          {
            pluginWorkerManager: workerManager,
            manifest,
          },
        );
        hostServicesDisposers.set(pluginId, () => services.dispose());
        return createHostClientHandlers({
          pluginId,
          capabilities: manifest.capabilities,
          services,
        });
      },
    },
  );
  runtimePluginLoader = loader;
  const browserUse = browserUseService(db, undefined,
    { cancelWorkForScope: heartbeatService(db, { pluginWorkerManager: workerManager }).cancelBudgetScopeWork },
    (session, run) => toolGateway.browserUseSessionAuthorized({ ...session, runId: run.heartbeatRunId, invocationId: run.invocationId }));
  api.use(browserUseRoutes(db, browserUse));
  api.use(toolGatewayRoutes(db, toolGateway));
  api.use(
    pluginRoutes(
      db,
      loader,
      { scheduler, jobStore },
      { workerManager },
      { toolDispatcher },
      { workerManager },
      { toolGateway },
    ),
  );
  api.use(
    adapterRoutes({
      getNativeRunnerEnabled: async () =>
        (await instanceSettingsService(db).getExperimental())
          .enableNativeRunner === true,
      getOpenAiDotEnabled: async () =>
        (await instanceSettingsService(db).getExperimental())
          .enableOpenAiDot === true,
    }),
  );
  api.use(
    accessRoutes(db, {
      deploymentMode: opts.deploymentMode,
      deploymentExposure: opts.deploymentExposure,
      bindHost: opts.bindHost,
      allowedHostnames: opts.allowedHostnames,
      authPublicBaseUrl: opts.authPublicBaseUrl,
    }),
  );
  let publicMcpEvents: PublicMcpEvents | null = null;
  let dotMcpEvents: PublicMcpEvents | null = null;
  if (publicMcpOAuth) {
    const dispatch = createMcpApiDispatch(api);
    publicMcpEvents = createPublicMcpEvents(db, publicMcpOAuth, dispatch, {
      isBackgroundWorkEnabled: () => !isWarmStandby() && !isIdleTaskDrainActive(),
    });
    publicMcpEvents.start();
    const transfers = createPublicMcpTransfers(db, publicMcpOAuth, dispatch, opts.storageService);
    publicMcpIngress.use(transfers.router);
    publicMcpIngress.use(publicMcpIngressRoutes(publicMcpOAuth, createPublicMcpExecutor(db, publicMcpOAuth, dispatch, transfers), publicMcpEvents));
    const dotOAuth = createPublicMcpOAuth(db, { ...publicMcpOAuth.config, resource: publicMcpOAuth.config.origin + "/mcp/runner" });
    dotMcpEvents = createPublicMcpEvents(db, dotOAuth, dispatch, { enableDotRunner: true, isBackgroundWorkEnabled: () => !isWarmStandby() && !isIdleTaskDrainActive() });
    dotMcpEvents.start();
    publicMcpIngress.use(publicMcpIngressRoutes(dotOAuth, createPublicMcpExecutor(db, dotOAuth, dispatch), dotMcpEvents, createDotRunnerMcpTools(db)));
    api.use(publicMcpManagementRoutes(publicMcpOAuth, dotOAuth));
    api.use(dotRunnerRoutes(db, publicMcpOAuth.config.origin + "/mcp/runner"));
  }

  app.use("/api", api);
  app.use("/api", (_req, res) => {
    res.status(404).json({ error: "API route not found" });
  });
  app.use(
    pluginUiStaticRoutes(db, {
      localPluginDir: opts.localPluginDir ?? DEFAULT_LOCAL_PLUGIN_DIR,
    }),
  );

  const __dirname = path.dirname(fileURLToPath(import.meta.url));
  if (opts.uiMode === "static") {
    // Try published location first (server/ui-dist/), then monorepo dev location (../../ui/dist)
    const candidates = [
      path.resolve(__dirname, "../ui-dist"),
      path.resolve(__dirname, "../../ui/dist"),
    ];
    const uiDist = candidates.find((p) =>
      fs.existsSync(path.join(p, "index.html")),
    );
    if (uiDist) {
      staticUi.use(staticUiCompression());
      // Hashed asset files (Vite emits them under /assets/<name>.<hash>.<ext>)
      // never change once built, so they can be cached aggressively.
      staticUi.use(
        "/assets",
        express.static(path.join(uiDist, "assets"), {
          maxAge: "1y",
          immutable: true,
        }),
      );
      // Serve root/index through the same runtime HTML transform as SPA routes.
      staticUi.get(["/", "/index.html"], (_req, res) => {
        res.type("html").set("Cache-Control", "no-cache").send(readBrandedStaticIndexHtml(uiDist));
      });
      // Non-hashed static files (favicon.ico, manifest, robots.txt, etc.):
      // short cache so operators who swap them out see the new version
      // reasonably fast, with must-revalidate overrides for index.html and
      // sw.js (see staticUiCacheControl for why those two).
      staticUi.use(
        express.static(uiDist, {
          maxAge: "1h",
          setHeaders(res, filePath) {
            const override = staticUiCacheControl(filePath);
            if (override) {
              res.set("Cache-Control", override);
            }
          },
        }),
      );
      // SPA fallback. Only for non-asset routes — if the browser asks for
      // /assets/something.js that doesn't exist, we must NOT serve the HTML
      // shell: the browser would try to load it as a JavaScript module, fail
      // with a MIME-type error, and cache that broken response. Return 404
      // instead. The index.html response itself is no-cache so a subsequent
      // deploy's updated asset hashes are picked up on next load.
      staticUi.get(/.*/, (req, res) => {
        if (req.path.startsWith("/assets/")) {
          res.status(404).end();
          return;
        }
        res
          .status(200)
          .set("Content-Type", "text/html")
          .set("Cache-Control", "no-cache")
          .end(readBrandedStaticIndexHtml(uiDist));
      });
    } else {
      console.warn("[paperclip] UI dist not found; running in API-only mode");
    }
    if (process.env.PAPERCLIP_MANAGED_RUNTIME_EXPOSURE === "tailscale_https") {
      // The managed-runtime supervisor waits for the app port AND its derived
      // Vite HMR companion port to bind before publishing the service. Static
      // mode has no Vite, so bind the same placeholder listener dev mode uses
      // or the supervisor kills a healthy server at the readiness deadline
      // (PAP-18043).
      const hmrServer = createHttpServer((_req, res) => {
        res.writeHead(426, { "Content-Type": "text/plain" });
        res.end("Upgrade Required");
      });
      await listenViteHmrServer(
        hmrServer,
        resolveViteHmrPort(opts.serverPort),
        opts.bindHost,
      );
      viteHmrServer = hmrServer;
    }
  }

  if (opts.uiMode === "vite-dev") {
    const uiRoot = path.resolve(__dirname, "../../ui");
    const publicUiRoot = path.resolve(uiRoot, "public");
    const hmrPort = resolveViteHmrPort(opts.serverPort);
    const hmrHost = resolveViteHmrHost(opts.bindHost);
    const hmrProtocol = resolveViteHmrProtocol(
      process.env.PAPERCLIP_VITE_HMR_PROTOCOL,
    );
    const hmrServer = createHttpServer((_req, res) => {
      res.writeHead(426, { "Content-Type": "text/plain" });
      res.end("Upgrade Required");
    });
    const { createServer: createViteServer } = await import("vite");
    const configuredViteCacheDir = process.env.PAPERCLIP_VITE_CACHE_DIR?.trim();
    const vite = await createViteServer({
      root: uiRoot,
      ...(configuredViteCacheDir
        ? { cacheDir: path.resolve(configuredViteCacheDir) }
        : {}),
      appType: "custom",
      // Vite otherwise discovers every HTML entry below the UI root. Generated
      // Storybook output can reference dependencies that are intentionally not
      // part of the application install, poisoning a clean embedded dev-server
      // cache before the browser opens. The embedded UI has one real entry.
      optimizeDeps: { entries: [path.resolve(uiRoot, "index.html")] },
      server: {
        // Listener binding and browser HMR hostname are deliberately separate:
        // exposed branch runtimes stay loopback-only while the browser uses the
        // current MagicDNS hostname through the broker's HTTPS listener.
        host: opts.bindHost,
        middlewareMode: true,
        hmr: {
          server: hmrServer,
          ...(hmrHost ? { host: hmrHost } : {}),
          ...(hmrProtocol ? { protocol: hmrProtocol } : {}),
          port: hmrPort,
          clientPort: hmrPort,
        },
        allowedHosts: privateHostnameGateEnabled
          ? Array.from(privateHostnameAllowSet)
          : undefined,
      },
    });
    try {
      await listenViteHmrServer(hmrServer, hmrPort, opts.bindHost);
    } catch (error) {
      await vite.close();
      throw error;
    }
    viteDevServer = vite;
    viteHmrServer = hmrServer;
    viteHtmlRenderer = createCachedViteHtmlRenderer({
      vite,
      uiRoot,
      brandHtml: applyUiBranding,
    });
    const renderViteHtml = viteHtmlRenderer;

    if (fs.existsSync(publicUiRoot)) {
      staticUi.use(express.static(publicUiRoot, { index: false }));
    }
    staticUi.get(/.*/, async (req, res, next) => {
      if (!shouldServeViteDevHtml(req)) {
        next();
        return;
      }
      try {
        const html = await renderViteHtml.render(req.originalUrl);
        res.status(200).set({ "Content-Type": "text/html" }).end(html);
      } catch (err) {
        next(err);
      }
    });
    staticUi.use(vite.middlewares);
  }

  app.use(staticUi);
  app.use(errorHandler);

  jobCoordinator.start();
  scheduler.start();
  const deliveryWork = createDeliveryWorkCoordinator({
    owner: db,
    canRun: () => !isWarmStandby() && !isIdleTaskDrainActive(),
    canReconcile: () => !isWarmStandby(),
    onError: (err, queue) => logger.error({ err, queue }, "Delivery reconciliation failed"),
  });
  app.locals.deliveryWork = deliveryWork;
  if (opts.feedbackExportService) {
    deliveryWork.register(DELIVERY_QUEUES.feedback, {
      retryMs: FEEDBACK_EXPORT_FLUSH_INTERVAL_MS,
      run: (signal) => opts.feedbackExportService!.flushPendingFeedbackTraces({ signal }),
      hasPending: () => opts.feedbackExportService!.hasPendingFeedbackTraces(),
    });
  }
  emailChannels.start();
  const flushChatPublications = async () => {
    await chatChannels.schedulePendingPublications();
  };
  const chatReconciliation = createChatReconciliationCoordinator({
    reconcileProviderRuntimes: () => chatChannels.reconcileProviderRuntimes(),
    processPendingDeliveries: () => chatChannels.processPendingDeliveries(),
    processFailedGitHubWebhookDeliveries: () =>
      chatChannels.processFailedGitHubWebhookDeliveries(),
    projectRunMilestones: () =>
      enqueueChatRunMilestones(db, {
        publicBaseUrl: opts.authPublicBaseUrl,
      }),
    flushPublications: () => flushChatPublications(),
    processPendingSlackFileUploadReceipts: () =>
      chatChannels.processPendingSlackFileUploadReceipts(),
    processPendingSlackSessionSyncs: () =>
      chatChannels.processPendingSlackSessionSyncs(),
    onError: (lane, err) => {
      logger.error({ err, lane }, `Failed to reconcile chat ${lane}`);
    },
  });
  const unsubscribeChatPublicationSignals = subscribeAllCompanyLiveEvents(
    (event) => {
      if (!isWarmStandby() && !isIdleTaskDrainActive() && isChatPublicationCommitSignal(event))
        chatReconciliation.notifyPublications();
    },
  );
  let chatPublicationTimer: ReturnType<typeof setInterval> | null = setInterval(
    () => {
      if (!isWarmStandby() && !isIdleTaskDrainActive()) chatReconciliation.reconcile();
    },
    CHAT_PUBLICATION_FLUSH_INTERVAL_MS,
  );
  chatPublicationTimer.unref?.();
  if (!isWarmStandby() && !isIdleTaskDrainActive()) chatReconciliation.reconcile();
  // Abandoned chunked-import spool sweep: hourly (plus once at startup),
  // deleting spool dirs whose transfer saw no activity for 24h and cancelling
  // their still-open ledger runs. Same setInterval + unref + shutdown-clear
  // shape as the feedback export flush above.
  const importTransferSpoolRoot = resolveDefaultImportTransferSpoolRoot();
  const sweepImportTransferSpools = () => {
    if (isWarmStandby() || isIdleTaskDrainActive()) return;
    sweepAbandonedImportTransferSpools(db, importTransferSpoolRoot)
      .then((result) => {
        if (result.swept > 0) {
          logger.info(result, "swept abandoned company import transfer spools");
        }
      })
      .catch((err) => {
        logger.error(
          { err },
          "abandoned company import transfer spool sweep failed",
        );
      });
  };
  const browserUseTimer = setInterval(() => {
    if (isWarmStandby() || isIdleTaskDrainActive()) return;
    void browserUse.sweep().catch(() => logger.warn("Browser Use reconciliation failed; retrying."));
  }, 3000);
  browserUseTimer.unref?.();
  if (!isWarmStandby() && !isIdleTaskDrainActive()) void browserUse.sweep().catch(() => logger.warn("Browser Use startup reconciliation failed; retrying."));
  let importTransferSweepTimer: ReturnType<typeof setInterval> | null =
    setInterval(
      sweepImportTransferSpools,
      IMPORT_TRANSFER_SPOOL_SWEEP_INTERVAL_MS,
    );
  importTransferSweepTimer.unref?.();
  // Startup only (never on the hourly interval — that would kill live
  // applies): apply jobs are in-memory in this single process, so any run
  // still "applying" now was interrupted by the previous shutdown and would
  // otherwise 409 every retry forever. Fail those stranded runs — their
  // spooled parts stay reusable — then run the normal sweep once.
  void companyTransferRunService
    .recoverStrandedApplyingRuns(db)
    .then((recovered) => {
      if (recovered.length > 0) {
        logger.warn(
          { count: recovered.length, runIds: recovered },
          "failed company transfer runs stranded in applying by a restart",
        );
      }
    })
    .catch((err) => {
      logger.error({ err }, "stranded company transfer apply recovery failed");
    })
    .finally(() => {
      sweepImportTransferSpools();
    });
  void toolDispatcher.initialize().catch((err) => {
    logger.error({ err }, "Failed to initialize plugin tool dispatcher");
  });
  const devWatcher = createPluginDevWatcher(
    lifecycle,
    async (pluginId) =>
      (await pluginRegistry.getById(pluginId))?.packagePath ?? null,
  );
  // Auto-provision bundled plugins so their providers are registered for
  // agent runs. Bundles are excluded from the pnpm
  // workspace and built standalone into the image (see Dockerfile), then
  // installed here from their local paths. This runs BEFORE loadAll() so
  // loadAll() can activate them in the same startup pass.
  //
  // Workers are started exactly once, by loadAll(): the `lifecycle` manager
  // above is constructed without a runtime-capable loader
  // (pluginLifecycleManager(db, { workerManager }) — no `loader` option), so
  // the lifecycle.load() that ensureBundledPlugins performs per newly
  // installed bundle only records the `ready` status and does not spawn a
  // worker (see activateReadyPlugin in services/plugin-lifecycle.ts).
  //
  // Managed instances (`plugins.autoInstall` from PAPERCLIP_MANAGED_CONFIG)
  // drive the key list from the control plane; self-hosted instances keep
  // the pre-existing behavior of ensuring only the kubernetes bundle.
  //
  // Resolution is deliberately synchronous and NOT fail-safe: an
  // unknown key or a path escaping the bundled catalog root throws out of
  // createApp so a managed instance refuses to start (positive allowlist,
  // fail closed).
  // SAFETY: installation is fully fail-safe. Any failure
  // (missing bundle, install error, load error) is caught, logged, and
  // swallowed per plugin so the server ALWAYS finishes booting. A degraded
  // boot (a provider unavailable, some agents cannot run) is strictly
  // preferable to a crash loop.
  //
  // The chain is not awaited here (createApp stays fast), but the settled
  // promise is exposed via `app.locals.bundledPluginsStartup` so boot steps
  // that must not outrun plugin availability — managed sandbox environments
  // (`applyManagedEnvironments`) run before the heartbeat resumes queued
  // runs — can sequence on it. It never rejects.
  const bundledPluginsStartup = ensureBundledPlugins(
    bundledPluginInstalls,
    { registry: pluginRegistry, loader, lifecycle, logger },
    // Managed mode reinstalls soft-uninstalled bundles (the control plane
    // owns provisioning); self-hosted leaves an operator's uninstall alone.
    // Disabled plugins never start automatically. Added distribution permissions
    // still enter upgrade_pending so enabling them requires an operator decision.
    { reinstallUninstalled: managedAutoInstallKeys !== null },
  )
    .then(() => loader.loadAll())
    .then((result) => {
      if (!result) return;
      for (const loaded of result.results) {
        if (devWatcher && loaded.success && loaded.plugin.packagePath) {
          devWatcher.watch(loaded.plugin.id, loaded.plugin.packagePath);
        }
      }
    })
    .catch((err) => {
      logger.error({ err }, "Failed to load ready plugins on startup");
    });
  app.locals.bundledPluginsStartup = trackIdleWork(bundledPluginsStartup);
  void bundledPluginsStartup.then(() => { lifecyclePluginsReady = true; return agentLifecycle.sweep(); }).catch(() => logger.warn("Agent lifecycle recovery failed; retrying."));
  // The shutdown hook runs at most once. It caches the in-flight promise, so a
  // second caller (for example the `exit` handler) awaits the same completion
  // instead of starting a second teardown.
  let appServicesShutdown: Promise<void> | null = null;
  const shutdownAppServices = (): Promise<void> => {
    if (appServicesShutdown) return appServicesShutdown;
    appServicesShutdown = (async () => {
      // The scheduler tick queries the database. Stop it here, inside the
      // awaited teardown, so no tick runs after the caller ends the pool.
      scheduler.stop();
      await agentLifecycle.stop();
      await publicMcpEvents?.stop();
      await dotMcpEvents?.stop();
      jobCoordinator.stop();
      await deliveryWork.stop();
      unsubscribeChatPublicationSignals();
      chatReconciliation.stop();
      if (chatPublicationTimer) {
        clearInterval(chatPublicationTimer);
        chatPublicationTimer = null;
      }
      await chatReconciliation.drain();
      clearInterval(browserUseTimer);
      if (importTransferSweepTimer) {
        clearInterval(importTransferSweepTimer);
        importTransferSweepTimer = null;
      }
      devWatcher?.close();
      viteHtmlRenderer?.dispose();
      void viteDevServer?.close().catch(() => undefined);
      viteHmrServer?.close();
      hostServiceCleanup.disposeAll();
      hostServiceCleanup.teardown();
      await emailChannels.shutdown();
      await chatChannels.shutdown();
      // End the avatar worker pool, if a request ever started one, so no
      // render outlives the HTTP teardown.
      await agentAvatars.close();
      // Cancel every live setup-token login session and AWAIT the cancellation,
      // so each direct child stops and the server releases each lease before the
      // caller stops the database and the provider. A lease release that
      // fails stays a durable record for the startup reaper.
      await setupTokenLoginService?.shutdown();
    })();
    return appServicesShutdown;
  };
  app.locals.paperclipShutdown = shutdownAppServices;

  // The `exit` event is synchronous. It cannot await the teardown, so it runs
  // the best-effort cleanup and drops the returned promise. The orderly signal
  // path awaits `shutdownAppServices` in full before the process exits.
  process.once("exit", () => {
    void shutdownAppServices();
  });
  process.once("beforeExit", () => {
    void flushPluginLogBuffer();
  });

  trackIdleRequestHandlers(app);
  return app;
}