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>

CHANGELOG.md

@@ -8,20 +8,20 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 
 ### Changed
-- **Monorepo Architecture**: Converted repository to monorepo structure with npm workspaces
+- **Repository Structure**: Converted to multi-project monorepo
   - `web-app/` - Main Next.js application (formerly root directory)
   - `housekeeping/` - Database backup and maintenance scripts
-- **Docker Configuration**: Updated Dockerfile and docker-compose files for monorepo build process
-- **Build Process**: Updated to use workspace-aware npm commands
+- **Docker Configuration**: Updated Dockerfile and docker-compose files for new directory structure
 - **Documentation**: Updated README.md and CLAUDE.md to reflect new structure
 
 ### Migration Notes
-- All application code moved to `web-app/` workspace using `git mv` to preserve history
-- All database backup scripts moved to `housekeeping/` workspace
-- Docker builds now install dependencies at root level and build from `web-app/` workspace
+- All application code moved to `web-app/` directory using `git mv` to preserve history
+- All database backup scripts moved to `housekeeping/` directory
+- Each project is self-contained with its own package.json and dependencies
+- Docker builds install dependencies from `web-app/` directory
 - Volume mounts in docker-compose updated to reference `web-app/etc/hosts/`
-- `.gitignore` updated to handle `node_modules` at any workspace level
-- Root `package.json` now manages workspaces and delegates commands to appropriate workspace
+- `.gitignore` updated to handle `node_modules` at any directory level
+- No workspace management - each project is completely independent
 
 ## [2.17.0] - 2025-12-21