Simple Inventory Tracker Web App (React + Node + MongoDB) with Login

I run a small business and I'm tired of tracking my stock in a messy spreadsheet that gets out of sync every week. I need a simple web app where I (and maybe one staff member) can log in and manage my inventory — add items, update quantities, mark things as low stock, and see everything in one clean list. Nothing fancy, just something reliable that replaces the spreadsheet. Scope of Work: Build a login page (email/password) so only authorized users can access the dashboard Create an inventory list view showing item name, quantity, category, and price Add/edit/delete inventory items through a simple form Add a "low stock" flag/highlight when quantity drops below a number I set per item Basic search/filter by item name or category Clean, responsive layout that works on both desktop and mobile browser Required Skills: React Node.js / Express MongoDB REST API design JWT authentication Tailwind CSS Deliverables: Fully working web app (frontend + backend) with source code delivered Basic setup/run instructions (README) so I can host it myself or hand it to my IT person One round of revisions after initial delivery Client Requirements: I'll provide my logo and brand colors (optional, plain styling is fine if not) I'll confirm the exact inventory fields I need before you start (name, SKU, quantity, category, price, low-stock threshold) I'll test the app within 2 days of delivery and report any issues Estimated Timeline: 3-4 days from project start Acceptance Criteria: Project is complete when I can log in, add/edit/delete inventory items, see low-stock items highlighted automatically, search my inventory list, and the app works correctly on both desktop and mobile browsers — with no console errors and all core actions (login, CRUD, search) functioning as described above. Optional Future Work (not included in this $100 scope): Deploying the app live on a hosting platform (Vercel/Render) with a custom domain Adding sales/order tracking on top of the inventory system