Upload and install updates (#948)

* adds a simple page to upload a bundle from computer to PlanktoScope
and install it
* adds a small utility to create a bundle from a disk slot

Author: sonnyp

backend/justfile

@@ -5,6 +5,8 @@ setup:
     sudo cp polkit.js /etc/polkit-1/rules.d/planktoscope.rules
     sudo systemctl reenable planktoscope-org.backend.service
     sudo systemctl restart planktoscope-org.backend.service
+    sudo mkdir -p /data/tmp
+    sudo chown -R pi:pi /data/tmp
 
 setup-dev:
     npm install --include=dev

backend/package-lock.json

@@ -4,6 +4,7 @@
   "dependencies": {
     "cors": "^2.8.5",
     "express": "^5.1.0",
+    "multer": "^2.1.1",
     "zod": "^4.1.12"
   },
   "devDependencies": {

backend/package.json

@@ -0,0 +1,9 @@
+#!/usr/bin/env node
+
+import express from "express"
+import cors from "cors"
+
+const app = express()
+app.use(cors())
+
+export default app