Add feedback voting and thumbs capture flow

Co-Authored-By: Paperclip <noreply@paperclip.ing>

server/src/app.ts

@@ -49,6 +49,7 @@ import { createHostClientHandlers } from "@paperclipai/plugin-sdk";
 import type { BetterAuthSessionResult } from "./auth/better-auth.js";
 
 type UiMode = "none" | "static" | "vite-dev";
+const FEEDBACK_EXPORT_FLUSH_INTERVAL_MS = 5_000;
 
 export function resolveViteHmrPort(serverPort: number): number {
   if (serverPort <= 55_535) {
@@ -63,6 +64,13 @@ export async function createApp(
     uiMode: UiMode;
     serverPort: number;
     storageService: StorageService;
+    feedbackExportService?: {
+      flushPendingFeedbackTraces(input?: {
+        companyId?: string;
+        limit?: number;
+        now?: Date;
+      }): Promise<unknown>;
+    };
     deploymentMode: DeploymentMode;
     deploymentExposure: DeploymentExposure;
     allowedHostnames: string[];
@@ -288,6 +296,19 @@ export async function createApp(
 
   jobCoordinator.start();
   scheduler.start();
+  const feedbackExportTimer = opts.feedbackExportService
+    ? setInterval(() => {
+      void opts.feedbackExportService?.flushPendingFeedbackTraces().catch((err) => {
+        logger.error({ err }, "Failed to flush pending feedback exports");
+      });
+    }, FEEDBACK_EXPORT_FLUSH_INTERVAL_MS)
+    : null;
+  feedbackExportTimer?.unref?.();
+  if (opts.feedbackExportService) {
+    void opts.feedbackExportService.flushPendingFeedbackTraces().catch((err) => {
+      logger.error({ err }, "Failed to flush pending feedback exports");
+    });
+  }
   void toolDispatcher.initialize().catch((err) => {
     logger.error({ err }, "Failed to initialize plugin tool dispatcher");
   });
@@ -308,6 +329,7 @@ export async function createApp(
     logger.error({ err }, "Failed to load ready plugins on startup");
   });
   process.once("exit", () => {
+    if (feedbackExportTimer) clearInterval(feedbackExportTimer);
     devWatcher?.close();
     hostServiceCleanup.disposeAll();
     hostServiceCleanup.teardown();