fix(deploy): pass NATS_HOST/NATS_PORT and autonomy gates through compose

The agents connect with NATS_HOST/NATS_PORT (NATS_URL is informational), but
docker-compose only forwarded NATS_URL. That was masked while system_config
carried the real host as a hardcoded default; after the secrets scrub the
default is localhost, so a deploy would have sent every NATS connection —
message bus, DispatchAgent, ExceptionAgent — to localhost.

Also forwards the autonomy gates (all default false) plus DISPATCH_REALERT_EVERY
and LLM_MODEL, so production behaviour is set in .env rather than by code
defaults. .env.example updated to match.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012AJLYcbTHCe45fyFnMfEin

docker-compose.yml

@@ -13,8 +13,12 @@ services:
     container_name: doormile_agents
     restart: unless-stopped
     environment:
-      # NATS — event bus
+      # NATS — event bus. The agents connect with NATS_HOST/NATS_PORT (NATS_URL
+      # is informational), so both must be passed through or every connection
+      # falls back to localhost.
       - NATS_URL=${NATS_URL}
+      - NATS_HOST=${NATS_HOST}
+      - NATS_PORT=${NATS_PORT}
       - NATS_USER=${NATS_USER}
       - NATS_PASSWORD=${NATS_PASSWORD}
       # Redis — GEO queries, miler presence
@@ -33,6 +37,12 @@ services:
       # AI layer — decision engine
       - AI_LAYER_BASE_URL=${AI_LAYER_BASE_URL}
       - ANTHROPIC_API_KEY=${ANTHROPIC_API_KEY}
+      # Agent behaviour. Outward-facing actions stay gated unless explicitly enabled.
+      - DISPATCH_AGENT_AUTONOMOUS=${DISPATCH_AGENT_AUTONOMOUS:-false}
+      - EXPRESS_AGENT_AUTONOMOUS=${EXPRESS_AGENT_AUTONOMOUS:-false}
+      - EXCEPTION_AGENT_AUTONOMOUS=${EXCEPTION_AGENT_AUTONOMOUS:-false}
+      - DISPATCH_REALERT_EVERY=${DISPATCH_REALERT_EVERY:-100}
+      - LLM_MODEL=${LLM_MODEL:-claude-opus-4-8}
       # Logging
       - LOG_LEVEL=${LOG_LEVEL:-INFO}
     volumes: