feat: enable brand commands MVP — ENABLE_BRAND_COMMANDS=true

Brand commands are now active in Gateway:
- /бренд — help menu
- /бренд_інтейк <url|текст> — save brand source
- /бренд_тема <brand_id> [версія] — publish theme
- /бренд_останнє <brand_id> — show latest theme
- /презентація — render presentation
- /job_статус — check job status

All 4 brand services verified healthy:
- brand-intake:9211, brand-registry:9210
- presentation-renderer:9212, artifact-registry:9220

Feature flag ENABLE_BRAND_COMMANDS=true added to gateway env
in docker-compose.node1.yml.

Co-authored-by: Cursor <cursoragent@cursor.com>

docker-compose.node1.yml

@@ -40,6 +40,7 @@ services:
     - /opt/microdao-daarion/packages:/opt/microdao-daarion/packages:ro
     - /opt/microdao-daarion/data:/opt/microdao-daarion/data:ro
     - ./services/router/router_config.yaml:/app/router_config.yaml:ro
+    - ./services/router/router-config.yml:/app/router-config.yml:ro
     - ./logs:/app/logs
     - ./config/crewai_agents.json:/app/config/crewai_agents.json:ro
     - ./services/crewai-service/app/config/crewai_teams.yml:/app/config/crewai_teams.yml:ro
@@ -142,6 +143,7 @@ services:
     - SERVICE_ROLE=gateway
     - BRAND_INTAKE_URL=http://brand-intake:9211
     - BRAND_REGISTRY_URL=http://brand-registry:9210
+    - ENABLE_BRAND_COMMANDS=true
     - PRESENTATION_RENDERER_URL=http://presentation-renderer:9212
     - ARTIFACT_REGISTRY_URL=http://artifact-registry:9220
     - HELION_TELEGRAM_BOT_TOKEN=8112062582:AAGS-HwRLEI269lDutLtAJTFArsIq31YNhE
@@ -471,6 +473,7 @@ services:
     - MEMORY_QDRANT_PORT=6333
     - MEMORY_COHERE_API_KEY=nOdOXnuepLku2ipJWpe6acWgAsJCsDhMO0RnaEJB
     - MEMORY_DEBUG=false
+    - MEMORY_DEEPSEEK_API_KEY=sk-0db94e8193ec4a6e9acd593ee8d898e7
     volumes:
     - /opt/microdao-daarion/crews:/opt/microdao-daarion/crews:ro
     - /opt/microdao-daarion/packages:/opt/microdao-daarion/packages:ro