Update legal files and build configuration: Bookmann → Bookhoard

Root level changes:
- LICENSE: Update copyright notice to Bookhoard
- .gitignore: Update build artifact patterns
- package.json: Update package name to bookhoard
- TROUBLESHOOTING.md: Update all references and examples
- README.md: Update database connection examples

Part of project rename to Bookhoard.

TROUBLESHOOTING.md

@@ -1,6 +1,6 @@
 # 🛠️ Troubleshooting Guide
 
-This guide addresses common issues when deploying and running Bookmann on different environments.
+This guide addresses common issues when deploying and running Bookhoard on different environments.
 
 ## ⚠️ Potential Issues & Solutions
 
@@ -62,7 +62,7 @@ SERVER_PORT=8766
 ```bash
 # Clean database volume and restart:
 docker compose down -v
-docker volume rm bookmann_postgres_data 2>/dev/null
+docker volume rm bookhoard_postgres_data 2>/dev/null
 docker compose up -d
 
 # Check database logs for errors:
@@ -113,7 +113,7 @@ FROM golang:1.25-alpine AS builder
 docker compose ps
 
 # Test database connection:
-docker compose exec db psql -U postgres -d bookmann -c "SELECT 1;"
+docker compose exec db psql -U postgres -d bookhoard -c "SELECT 1;"
 
 # Test API endpoint:
 curl -s http://localhost:8765/api/libraries/visible
@@ -130,7 +130,7 @@ curl -s http://SERVER_IP:8765/api/libraries/visible
 docker compose ps
 
 # Test database connection
-docker compose exec db psql -U postgres -d bookmann -c "SELECT 1;"
+docker compose exec db psql -U postgres -d bookhoard -c "SELECT 1;"
 
 # Test API endpoint
 curl -s http://localhost:8765/api/libraries/visible
@@ -143,7 +143,7 @@ docker compose logs app
 ```bash
 # 1. Clone repository
 git clone <repository-url>
-cd bookmann
+cd bookhoard
 
 # 2. Set up environment
 cp .env.example .env
@@ -190,7 +190,7 @@ docker compose logs -f app
 ### Check Database Schema:
 ```bash
 # Connect to database:
-docker compose exec db psql -U postgres -d bookmann
+docker compose exec db psql -U postgres -d bookhoard
 
 # List tables:
 \dt