feat(cloudflare): worker-hosted version.json for UI updates

packages/cloudflare/.gitignore

@@ -0,0 +1 @@
+dist/

packages/cloudflare/package.json

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+{
+  "name": "@codenomad/ui-host-worker",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "build:manifest": "node ./scripts/build-manifest.mjs",
+    "release:ui": "node ./scripts/release-ui.mjs",
+    "dev": "wrangler dev",
+    "deploy": "wrangler deploy"
+  },
+  "devDependencies": {
+    "wrangler": "^4.0.0"
+  }
+}

packages/cloudflare/release-config.json

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+{
+  "minServerVersion": "0.7.5",
+  "latestServerUrl": "https://github.com/NeuralNomadsAI/CodeNomad/releases/latest"
+}

packages/cloudflare/scripts/build-manifest.mjs

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+import { createHash } from "crypto"
+import fs from "fs"
+import path from "path"
+import { fileURLToPath } from "url"
+
+const __filename = fileURLToPath(import.meta.url)
+const __dirname = path.dirname(__filename)
+
+const root = path.resolve(__dirname, "..")
+const repoRoot = path.resolve(root, "..", "..")
+
+const releaseConfigPath = path.join(root, "release-config.json")
+const uiPackageJsonPath = path.join(repoRoot, "packages/ui/package.json")
+const serverPackageJsonPath = path.join(repoRoot, "packages/server/package.json")
+
+const distDir = path.join(root, "dist")
+const manifestPath = path.join(distDir, "version.json")
+
+const args = new Set(process.argv.slice(2))
+
+function getArgValue(flag) {
+  const idx = process.argv.indexOf(flag)
+  if (idx === -1) return null
+  return process.argv[idx + 1] ?? null
+}
+
+const zipPath = getArgValue("--zip")
+
+if (!zipPath) {
+  console.error("Usage: node scripts/build-manifest.mjs --zip <path-to-ui-zip>")
+  process.exit(1)
+}
+
+const resolvedZipPath = path.resolve(process.cwd(), zipPath)
+if (!fs.existsSync(resolvedZipPath)) {
+  console.error(`Zip not found: ${resolvedZipPath}`)
+  process.exit(1)
+}
+
+const releaseConfig = JSON.parse(fs.readFileSync(releaseConfigPath, "utf-8"))
+const uiPackageJson = JSON.parse(fs.readFileSync(uiPackageJsonPath, "utf-8"))
+const serverPackageJson = JSON.parse(fs.readFileSync(serverPackageJsonPath, "utf-8"))
+
+const bucket = process.env.CODENOMAD_R2_BUCKET
+
+if (!bucket) {
+  console.error("Missing env var: CODENOMAD_R2_BUCKET")
+  process.exit(1)
+}
+
+const uiVersion = uiPackageJson.version
+const serverVersion = serverPackageJson.version
+
+if (!uiVersion || !serverVersion) {
+  console.error("Missing version fields in package.json")
+  process.exit(1)
+}
+
+const sha256 = createHash("sha256").update(fs.readFileSync(resolvedZipPath)).digest("hex")
+
+const uiPackageURL = `https://download.codenomad.neuralnomads.ai/ui/ui-${uiVersion}.zip`
+
+const manifest = {
+  minServerVersion: releaseConfig.minServerVersion,
+  latestUIVersion: uiVersion,
+  uiPackageURL,
+  sha256,
+  latestServerVersion: serverVersion,
+  latestServerUrl: releaseConfig.latestServerUrl,
+}
+
+fs.mkdirSync(distDir, { recursive: true })
+fs.writeFileSync(manifestPath, JSON.stringify(manifest, null, 2) + "\n", "utf-8")
+
+console.log(`Wrote ${manifestPath}`)

packages/cloudflare/scripts/release-ui.mjs

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+import { execFileSync } from "child_process"
+import fs from "fs"
+import os from "os"
+import path from "path"
+import { fileURLToPath } from "url"
+
+const __filename = fileURLToPath(import.meta.url)
+const __dirname = path.dirname(__filename)
+
+const root = path.resolve(__dirname, "..")
+const repoRoot = path.resolve(root, "..", "..")
+
+const r2Bucket = process.env.CODENOMAD_R2_BUCKET
+
+if (!r2Bucket) {
+  console.error("Missing env var: CODENOMAD_R2_BUCKET")
+  process.exit(1)
+}
+
+const uiPackageJsonPath = path.join(repoRoot, "packages/ui/package.json")
+const uiPackageJson = JSON.parse(fs.readFileSync(uiPackageJsonPath, "utf-8"))
+const uiVersion = uiPackageJson.version
+
+if (!uiVersion) {
+  console.error("Missing packages/ui/package.json version")
+  process.exit(1)
+}
+
+const uiBuildDir = path.join(repoRoot, "packages/ui/src/renderer/dist")
+if (!fs.existsSync(uiBuildDir)) {
+  console.error(`Missing UI build dir: ${uiBuildDir}. Run UI build first.`)
+  process.exit(1)
+}
+
+const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), "codenomad-ui-release-"))
+const zipPath = path.join(tmpDir, `ui-${uiVersion}.zip`)
+
+try {
+  // Zip the CONTENTS of the dist dir (so index.html is at zip root).
+  execFileSync("/usr/bin/zip", ["-q", "-r", zipPath, "."], { cwd: uiBuildDir, stdio: "inherit" })
+
+  // Upload to R2.
+  const objectKey = `ui/ui-${uiVersion}.zip`
+  console.log(`[release-ui] Uploading ${zipPath} -> r2://${r2Bucket}/${objectKey}`)
+
+  execFileSync(
+    "npx",
+    ["wrangler", "r2", "object", "put", r2Bucket, objectKey, "--file", zipPath],
+    { cwd: root, stdio: "inherit" },
+  )
+
+  // Generate version.json into packages/cloudflare/dist
+  console.log("[release-ui] Generating version.json")
+  execFileSync(
+    process.execPath,
+    [path.join(root, "scripts/build-manifest.mjs"), "--zip", zipPath],
+    {
+      cwd: root,
+      stdio: "inherit",
+      env: {
+        ...process.env,
+        CODENOMAD_R2_BUCKET: r2Bucket,
+      },
+    },
+  )
+
+  console.log("[release-ui] Deploying worker")
+  execFileSync("npx", ["wrangler", "deploy"], { cwd: root, stdio: "inherit" })
+
+  console.log("[release-ui] Done")
+} finally {
+  fs.rmSync(tmpDir, { recursive: true, force: true })
+}

packages/cloudflare/src/index.ts

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+export interface Env {
+  ASSETS: { fetch: (request: Request) => Promise<Response> }
+}
+
+function withHeader(response: Response, key: string, value: string): Response {
+  const headers = new Headers(response.headers)
+  headers.set(key, value)
+  return new Response(response.body, {
+    status: response.status,
+    statusText: response.statusText,
+    headers,
+  })
+}
+
+export default {
+  async fetch(request: Request, env: Env): Promise<Response> {
+    const url = new URL(request.url)
+
+    if (url.pathname === "/version.json") {
+      const assetResponse = await env.ASSETS.fetch(request)
+
+      // Ensure this stays fresh; the server uses it on startup.
+      const withCache = withHeader(assetResponse, "Cache-Control", "no-cache")
+      return withHeader(withCache, "Content-Type", "application/json; charset=utf-8")
+    }
+
+    return new Response("Not found", { status: 404 })
+  },
+}

packages/cloudflare/wrangler.toml

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+name = "codenomad-ui-host"
+main = "src/index.ts"
+compatibility_date = "2026-01-22"
+
+[assets]
+directory = "./dist"
+binding = "ASSETS"
+not_found_handling = "404-page"
+run_worker_first = ["/version.json"]