Add microchip field fix migration notice to README

README.md

@@ -2,6 +2,28 @@
 
 A reactive, interactive dog breeding genealogy mapping system for professional kennel management.
 
+## ⚠️ Important: Database Migration Required
+
+**If you have an existing BREEDR installation**, you must run a migration to fix the microchip field constraint:
+
+```bash
+# Enter the container
+docker exec -it breedr sh
+
+# Run migration
+node server/db/migrate_microchip.js
+
+# Exit and restart
+exit
+docker restart breedr
+```
+
+**What this fixes:** The microchip field now allows multiple dogs without microchips (previously caused "UNIQUE constraint failed" errors).
+
+**See full details:** [docs/MICROCHIP_FIX.md](docs/MICROCHIP_FIX.md)
+
+---
+
 ## Features
 
 - **Interactive Pedigree Visualization** - Multi-generational family trees with zoom/pan
@@ -10,14 +32,16 @@ A reactive, interactive dog breeding genealogy mapping system for professional k
 - **Inbreeding Coefficient Calculator** - COI analysis for responsible breeding decisions
 - **Trial Pairing Simulator** - Preview offspring genetics before breeding
 - **Document Management** - Digital storage for certificates, contracts, and records
+- **Modern UI** - Sleek, dark-themed interface with compact info cards
 
 ## Technology Stack
 
-- **Frontend**: React 18 with TypeScript
+- **Frontend**: React 18 with modern component design
 - **Visualization**: React-D3-Tree for pedigree charts
 - **Backend**: Node.js/Express API
 - **Database**: SQLite (embedded, zero-config)
 - **Container**: Single Docker image with multi-stage build
+- **Styling**: CSS custom properties with dark theme
 
 ## Installation (Unraid)
 
@@ -27,6 +51,7 @@ A reactive, interactive dog breeding genealogy mapping system for professional k
 ```bash
 cd /mnt/user/appdata/breedr-build
 git clone https://git.alwisp.com/jason/breedr.git .
+git checkout feature/ui-redesign  # For latest UI updates
 ```
 
 2. Build the Docker image:
@@ -76,9 +101,14 @@ breedr/
 │   └── package.json
 ├── server/           # Node.js backend
 │   ├── routes/
-│   ├── models/
 │   ├── db/
+│   │   ├── init.js
+│   │   └── migrate_microchip.js
 │   └── index.js
+├── docs/             # Documentation
+│   ├── MICROCHIP_FIX.md
+│   ├── UI_REDESIGN.md
+│   └── COMPACT_CARDS.md
 ├── Dockerfile        # Multi-stage Docker build
 ├── docker-compose.yml
 ├── package.json
@@ -102,19 +132,47 @@ SQLite database automatically initializes on first run with tables:
 - `heat_cycles` - Breeding cycle tracking
 - `traits` - Genetic trait mapping
 
+## Upgrading
+
+### From Earlier Versions
+
+```bash
+# Stop container
+docker stop breedr
+
+# Backup your data
+cp -r /mnt/user/appdata/breedr /mnt/user/appdata/breedr-backup
+
+# Pull latest code
+cd /mnt/user/appdata/breedr-build
+git pull
+
+# Rebuild image
+docker build -t breedr:latest .
+
+# Start container (will auto-migrate)
+docker start breedr
+
+# Run migration if needed
+docker exec -it breedr node server/db/migrate_microchip.js
+```
+
 ## Roadmap
 
-### ✅ Phase 1: Foundation (Current)
+### ✅ Phase 1: Foundation (Complete)
 - [x] Project structure
 - [x] Docker containerization
 - [x] Database schema
 - [x] Basic API endpoints
+- [x] Modern UI redesign
 
-### 🚧 Phase 2: Core Features
-- [ ] Dog profile management (CRUD)
+### 🚧 Phase 2: Core Features (In Progress)
+- [x] Dog profile management (CRUD)
+- [x] Photo management
+- [x] Compact info card design
+- [x] Search and filtering
 - [ ] Interactive pedigree visualization
 - [ ] Parent-child relationship mapping
-- [ ] Basic photo uploads
 
 ### 📋 Phase 3: Breeding Tools
 - [ ] Inbreeding coefficient calculator
@@ -122,21 +180,37 @@ SQLite database automatically initializes on first run with tables:
 - [ ] Heat cycle tracking
 - [ ] Litter management
 
-### 📋 Phase 4: Health & Genetics
+### 📊 Phase 4: Health & Genetics
 - [ ] Health record management
 - [ ] Genetic trait tracking
 - [ ] Document storage
 
-### 📋 Phase 5: Advanced Features
+### 🚀 Phase 5: Advanced Features
 - [ ] PDF pedigree generation
 - [ ] Reverse pedigree (descendants)
 - [ ] Advanced search and filters
 - [ ] Export capabilities
 
+## Recent Updates
+
+### March 8, 2026 - UI Redesign & Bug Fixes
+- **Fixed:** Microchip field UNIQUE constraint (now properly optional)
+- **Added:** Migration script for existing databases
+- **Redesigned:** Modern dark theme with sleek aesthetics
+- **Redesigned:** Compact horizontal info cards (80x80 avatars)
+- **Improved:** Dashboard with gradient stats cards
+- **Improved:** Navigation bar with glass morphism
+- **Enhanced:** Age calculation and display
+- **Added:** Sex-colored icons (blue ♂, pink ♀)
+- **Added:** Registration number badges
+
 ## License
 
 Private use only - All rights reserved
 
 ## Support
 
-For issues or questions, contact the system administrator.
+For issues or questions:
+- Check documentation in `docs/` folder
+- Review container logs: `docker logs breedr`
+- Contact the system administrator