Rename project from PharmaShield to ShockMap

Fix Render build context: rely on defaults and remove duplicate Dockerfile

Fix Render build context: Move Dockerfile to root

Fix backend startup: resolve relative import error and add graceful fallback for background detector

Add Google Maps API key to Render config

Use rootDir for backend deployment on Render

Fix render.yaml field name: dockerFilePath -> dockerfile

Configure Render Blueprint for backend deployment