Frontend: improve mobile UI (Auth centered, Predictions controls responsive with loading message). Backend: treat Render as serverless via DISABLE_LSTM_TRAINING flag to skip LSTM training on constrained instances.

Backend: remove Vercel serverless config, tighten CORS, add /api health; Frontend: set API base URL to http://localhost:5001 and align endpoints; misc: cleanups

fix(backend): restore app.js with health route and CORS; add api/index.js for /api root; lazy-load tf in predictions; ensure serverless routing works on Vercel

chore(vercel): restrict backend build to api/**/*.js with vercel.json; reduce serverless entrypoint conflicts

feat(vercel): serverless backend (api/[...path]), Express app, serverless guards; frontend API base from env or same-origin; dashboard polling replaces Socket.IO; add serverless-http dependency

feat: prepare Vercel deployment (frontend env API_URL, multi-origin CORS)

docs: remove external provider mentions; emphasize our own LSTM training

Fix: remove frontend submodule and add files

Initial commit: project setup, README, gitignore, secure auth