refactor: simplify to independent multi-project structure

Removed npm workspace configuration in favor of simple multi-project repository.
Each project (web-app, housekeeping) is now completely self-contained.

## Changes
- Removed root package.json and package-lock.json
- Added VS Code workspace file for better project organization
- Updated documentation to reflect independent project structure
- Each project manages its own dependencies without workspace linking

## Structure
- web-app/: Self-contained Next.js application
- housekeeping/: Self-contained DB maintenance scripts
- No workspace management or dependency sharing
- Monorepo is purely for Git organization

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

CLAUDE.md

@@ -2,31 +2,30 @@
 
 This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
 
-## Monorepo Structure
+## Repository Structure
 
-This is a monorepo with the following workspaces:
-- **web-app**: Next.js 14 utility bills tracking application
-- **housekeeping**: Database backup and maintenance scripts
+This is a multi-project repository containing:
+- **web-app/**: Next.js 14 utility bills tracking application
+- **housekeeping/**: Database backup and maintenance scripts
+
+Each project is self-contained with its own dependencies.
 
 ## Development Commands
 
-From the monorepo root:
-- `npm run dev` - Start development server (runs web-app workspace)
-- `npm run build` - Build production version (builds web-app workspace)
-- `npm start` - Start production server (runs web-app workspace)
-- `npm run prettier` - Format code with Prettier (entire monorepo)
-- `npm run prettier:check` - Check code formatting (entire monorepo)
+All commands should be run from within the respective project directory.
 
-From the web-app workspace (`cd web-app`):
+**Web App** (`cd web-app`):
+- `npm install` - Install dependencies
 - `npm run dev` - Start development server
 - `npm run build` - Build production version
 - `npm start` - Start production server
+- `npm run prettier` - Format code
 - `npm run seed` - Seed database with initial data
 
-From the housekeeping workspace (`cd housekeeping`):
-- `npm run backup:standalone` - Run standalone database backup
-- `npm run backup:swarm` - Run swarm database backup
-- `npm run dump:standalone` - Run standalone database dump
+**Housekeeping** (`cd housekeeping`):
+- `./db-backup--standalone.sh` - Run standalone database backup
+- `./db-backup--swarm.sh` - Run swarm database backup
+- `./db-dump--standalone.sh` - Run standalone database dump
 - See housekeeping/README.md for more details
 
 ## Deployment Commands