Update Nightscout to version 15.0.4 and configure for Replit

Update project documentation and startup script for Nightscout v15.0.4, including Replit specific configurations like INSECURE_USE_HTTP=true and webpack bundling.

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Replit-Helium-Checkpoint-Created: true

replit.md

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+# Nightscout CGM Remote Monitor
+
+## Overview
+Nightscout is a web-based CGM (Continuous Glucose Monitor) system allowing caregivers to remotely view a patient's glucose data in realtime. This is version 15.0.4 of the cgm-remote-monitor project.
+
+## Current State
+- Project is set up and running on Replit
+- MongoDB is configured locally for development
+- Server runs on port 5000 with host 0.0.0.0
+- Webpack bundling for frontend assets
+
+## Project Structure
+- `lib/server/server.js` - Main application entry point
+- `lib/server/app.js` - Express application setup
+- `lib/server/env.js` - Environment configuration
+- `lib/api/` - REST API v1 endpoints
+- `lib/api2/` - REST API v2 endpoints
+- `lib/api3/` - REST API v3 endpoints
+- `lib/plugins/` - Nightscout plugins (ar2, basal, bolus, etc.)
+- `lib/storage/` - MongoDB storage adapters
+- `lib/client/` - Client-side code
+- `static/` - Static files (HTML, CSS, frontend assets)
+- `bundle/` - Webpack bundle source files
+- `webpack/` - Webpack configuration
+- `start.sh` - Startup script that launches MongoDB and the app
+
+## Environment Variables
+- `PORT` - Server port (set to 5000)
+- `HOSTNAME` - Bind address (set to 0.0.0.0)
+- `MONGO_CONNECTION` - MongoDB connection string
+- `API_SECRET` - API authentication secret (minimum 12 characters)
+- `INSECURE_USE_HTTP` - Set to true for Replit proxy compatibility
+
+## Running the Project
+The workflow automatically:
+1. Starts MongoDB with data stored in `/home/runner/data/db`
+2. Launches the Node.js server on port 5000
+
+## NPM Scripts
+- `npm start` - Start production server
+- `npm run bundle` - Build webpack bundles
+- `npm run dev` - Start development server with nodemon
+- `npm test` - Run tests
+
+## Recent Changes
+- 2025-12-31: Updated to version 15.0.4 (dev branch)
+- Configured for Replit environment with INSECURE_USE_HTTP=true
+- Uses MongoDB 3.6.x driver
+- Webpack bundling for frontend assets

start.sh

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+#!/bin/bash
+
+mkdir -p /home/runner/data/db
+
+if ! pgrep -x "mongod" > /dev/null; then
+    echo "Starting MongoDB..."
+    mongod --dbpath /home/runner/data/db --fork --logpath /home/runner/data/mongod.log --bind_ip 127.0.0.1
+    sleep 2
+fi
+
+echo "Starting Nightscout server..."
+node lib/server/server.js