feat(db): add database backup and initialization system

- Add backup.sh script for manual PostgreSQL database backups
- Update .gitignore to exclude pg_backups directory
- Modify docker-compose.yml to include backup service and volume mounts
- Add init.sh script for automated database initialization with backup restoration

docker-compose.yml

@@ -80,7 +80,11 @@ services:
       POSTGRES_DB: ${DB_NAME:-worklenz_db}
       POSTGRES_PASSWORD: ${DB_PASSWORD:-password}
     healthcheck:
-      test: [ "CMD-SHELL", "pg_isready -d ${DB_NAME:-worklenz_db} -U ${DB_USER:-postgres}" ]
+      test:
+        [
+          "CMD-SHELL",
+          "pg_isready -d ${DB_NAME:-worklenz_db} -U ${DB_USER:-postgres}",
+        ]
       interval: 10s
       timeout: 5s
       retries: 5
@@ -89,9 +93,20 @@ services:
     volumes:
       - worklenz_postgres_data:/var/lib/postgresql/data
       - type: bind
-        source: ./worklenz-backend/database
-        target: /docker-entrypoint-initdb.d
+        source: ./worklenz-backend/database/sql
+        target: /docker-entrypoint-initdb.d/sql
         consistency: cached
+      - type: bind
+        source: ./worklenz-backend/database/migrations
+        target: /docker-entrypoint-initdb.d/migrations
+        consistency: cached
+      - type: bind
+        source: ./worklenz-backend/database/init.sh
+        target: /docker-entrypoint-initdb.d/00_init.sh
+        consistency: cached
+      - type: bind
+        source: ./pg_backups
+        target: /docker-entrypoint-initdb.d/pg_backups
     command: >
       bash -c ' if command -v apt-get >/dev/null 2>&1; then
         apt-get update && apt-get install -y dos2unix
@@ -101,11 +116,34 @@ services:
         dos2unix "{}" 2>/dev/null || true
         chmod +x "{}"
       '\'' \; && exec docker-entrypoint.sh postgres '
+  db-backup:
+    image: postgres:15
+    container_name: worklenz_db_backup
+    environment:
+      POSTGRES_USER: ${DB_USER:-postgres}
+      POSTGRES_DB: ${DB_NAME:-worklenz_db}
+      POSTGRES_PASSWORD: ${DB_PASSWORD:-password}
+    depends_on:
+      db:
+        condition: service_healthy
+    volumes:
+      - ./pg_backups:/pg_backups #host dir for backups files
+    #setup bassh loop to backup data evey 24h
+    command: >
+      bash -c "while true; do
+                sleep 86400;
+                PGPASSWORD=$$POSTGRES_PASSWORD pg_dump -h worklenz_db -U $$POSTGRES_USER -d $$POSTGRES_DB \
+              > /pg_backups/worklenz_db_$(date +%Y-%m-%d_%H-%M-%S).sql;
+              find /pg_backups -type f -name '*.sql' -mtime +30 -delete;
+      done"
+    restart: unless-stopped
+    networks:
+      - worklenz
 
 volumes:
   worklenz_postgres_data:
   worklenz_minio_data:
-
+  pgdata:
 
 networks:
   worklenz: