[Bug] npm test silently skips file_upload_component.test.js

I will pay for a fixed file - details below. ## Bug `package.json` hardcodes three files: ```json "test": "node --test upload_file.test.js login_upload.test.js components/file_upload.test.js" ``` `file_upload_component.test.js` exists at the repo root but is never run, so its breakage (see related syntax-error issue) goes unnoticed. ## Acceptance criteria - [ ] Every `*.test.js(cjs)` at root and in `components/` is picked up automatically (glob or explicit list) - [ ] Adding a new broken test file makes `npm test` fail ## Reward I will pay **15 USDC (test tokens)** on **ARC Testnet** for a merged fix — same flow as #53, but payout is test USDC on ARC, not Base. How to claim: 1. Comment `/attempt` with this issue number before you start. 2. Open a PR referencing this issue (`Fixes #`). 3. After the PR is reviewed and merged, comment your **ARC testnet EVM address** here — you receive 15 test USDC on ARC.