Fix WORKDIR, rename DB to e_ticket, simplify purge_dev

- Add WORKDIR /app to dev and prod Dockerfiles
- Rename database from e-ticket to e_ticket (PostgreSQL compat)
- purge_dev: remove only containers and volumes, keep images

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

docker-compose-dev.yml

@@ -3,7 +3,7 @@ services:
     build:
       context: ./docker/php/dev
       dockerfile: Dockerfile
-    container_name: e-ticket_php
+    container_name: e_ticket_php
     restart: unless-stopped
     volumes:
       - .:/app
@@ -17,38 +17,38 @@ services:
 
   database:
     image: postgres:16-alpine
-    container_name: e-ticket_database
+    container_name: e_ticket_database
     environment:
       POSTGRES_USER: app
       POSTGRES_PASSWORD: secret
-      POSTGRES_DB: e-ticket
+      POSTGRES_DB: e_ticket
     ports:
       - "5432:5432"
     volumes:
       - db-data:/var/lib/postgresql/data
     healthcheck:
-      test: ["CMD-SHELL", "pg_isready -U app -d e-ticket"]
+      test: ["CMD-SHELL", "pg_isready -U app -d e_ticket"]
       interval: 5s
       timeout: 5s
       retries: 5
 
   redis:
     image: redis:7-alpine
-    container_name: e-ticket_redis
-    command: redis-server --requirepass e-ticket
+    container_name: e_ticket_redis
+    command: redis-server --requirepass e_ticket
     ports:
       - "6379:6379"
     volumes:
       - redis-data:/data
     healthcheck:
-      test: ["CMD", "redis-cli", "-a", "e-ticket", "ping"]
+      test: ["CMD", "redis-cli", "-a", "e_ticket", "ping"]
       interval: 5s
       timeout: 5s
       retries: 5
 
   caddy:
     image: caddy:2-alpine
-    container_name: e-ticket_caddy
+    container_name: e_ticket_caddy
     ports:
       - "8000:80"
     volumes:
@@ -61,7 +61,7 @@ services:
     build:
       context: ./docker/php/dev
       dockerfile: Dockerfile
-    container_name: e-ticket_messenger
+    container_name: e_ticket_messenger
     command: php bin/console messenger:consume async -vv
     restart: unless-stopped
     volumes:
@@ -74,7 +74,7 @@ services:
 
   bun:
     image: oven/bun:alpine
-    container_name: e-ticket_bun
+    container_name: e_ticket_bun
     working_dir: /app
     volumes:
       - .:/app
@@ -85,18 +85,18 @@ services:
 
   mailpit:
     image: axllent/mailpit
-    container_name: e-ticket_mailpit
+    container_name: e_ticket_mailpit
     ports:
       - "1025:1025"
       - "8025:8025"
 
   vault:
     image: hashicorp/vault:latest
-    container_name: e-ticket_vault
+    container_name: e_ticket_vault
     cap_add:
       - IPC_LOCK
     environment:
-      VAULT_DEV_ROOT_TOKEN_ID: e-ticket
+      VAULT_DEV_ROOT_TOKEN_ID: e_ticket
       VAULT_DEV_LISTEN_ADDRESS: 0.0.0.0:8200
     ports:
       - "8200:8200"
@@ -105,11 +105,11 @@ services:
 
   minio:
     image: minio/minio:latest
-    container_name: e-ticket_minio
+    container_name: e_ticket_minio
     command: server /data --console-address ":9001"
     environment:
-      MINIO_ROOT_USER: e-ticket
-      MINIO_ROOT_PASSWORD: e-ticket
+      MINIO_ROOT_USER: e_ticket
+      MINIO_ROOT_PASSWORD: e_ticket
     ports:
       - "9090:9000"
       - "9001:9001"
@@ -118,7 +118,7 @@ services:
 
   ngrok:
     image: ngrok/ngrok:latest
-    container_name: e-ticket_ngrok
+    container_name: e_ticket_ngrok
     command: http caddy:80 --log stdout
     environment:
       NGROK_AUTHTOKEN: GXtZtKtRxRF5TFV5pCKD_25f1ALUyQQ9LkyQJgv1dr
@@ -129,7 +129,7 @@ services:
 
   ngrok-sync:
     image: curlimages/curl:latest
-    container_name: e-ticket_ngrok_sync
+    container_name: e_ticket_ngrok_sync
     volumes:
       - .:/app
       - ./docker/ngrok/sync.sh:/sync.sh
@@ -139,7 +139,7 @@ services:
 
   redisinsight:
     image: redis/redisinsight:latest
-    container_name: e-ticket_redisinsight
+    container_name: e_ticket_redisinsight
     ports:
       - "5540:5540"
     depends_on: