Add activity feed API

.spr.yml

@@ -0,0 +1,12 @@
+githubRepoOwner: starkware-libs
+githubRepoName: blockifier
+githubHost: github.com
+githubRemote: origin
+githubBranch: main-v0.13.2
+requireChecks: true
+requireApproval: true
+mergeMethod: squash
+mergeQueue: false
+forceFetchTags: false
+showPrTitlesInStack: false
+branchPushIndividually: false

graphite-demo/server.js

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+const express = require('express');
+const app = express();
+const port = 3000;
+
+// Fake data for the activity feed
+const activityFeed = [
+  {
+    id: 1000,
+    title: 'New Photo Uploaded',
+    body: 'Alice uploaded a new photo to her album.'
+  },
+  {
+    id: 2000,
+    title: 'Comment on Post',
+    body: "Bob commented on Charlie's post."
+  },
+  {
+    id: 13,
+    title: 'Status Update',
+    body: 'Charlie updated their status: "Excited about the new project!"'
+  }
+];
+
+app.get('/feed', (req, res) => {
+  res.json(activityFeed);
+});
+
+app.listen(port, () => {
+  console.log(`Server running on port ${port}`);
+});