feat(simulator): real-time (1s), fix ENABLE_PULSAR, add Pulsar/Redpanda publish, fix InfluxDB URL

- Change INTERVAL to 1s for real-time sensor data
- Fix ENABLE_PULSAR comparison (accept 'true'/'false' strings)
- Add publish_pulsar() and publish_redpanda() functions
- Fix InfluxDB URL (smart-city-influxdb instead of digital-twin-influxdb)
- Add docker-compose.yml with simulator service
- Add redpanda config and start script
- Add session_resume_2026-05-05.md

redpanda/docker-compose.yml

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+# Redpanda (Kafka-compatible) — Single Node for Smart City Digital Twin Martinique
+# Usage: docker compose -p smart-city -f redpanda/docker-compose.yml up -d
+# Ports: 19092=Kafka (host), 9644=Admin API
+services:
+  redpanda:
+    image: redpandadata/redpanda:v24.3.14
+    container_name: smart-city-redpanda
+    entrypoint: ["/bin/bash", "/start.sh"]
+    volumes:
+      - redpanda-data:/var/lib/redpanda/data
+      - ./start.sh:/start.sh:ro
+    ports:
+      - "19092:9092"
+      - "19644:9644"
+    networks:
+      - traefik-public
+      - smartcity-shared
+    deploy:
+      resources:
+        limits:
+          memory: 2G
+    healthcheck:
+      test: ["CMD-SHELL", "curl -sf http://localhost:9644/v1/status/ready 2>/dev/null || exit 1"]
+      interval: 30s
+      timeout: 10s
+      retries: 10
+      start_period: 60s
+    labels:
+      - "traefik.enable=true"
+      - "traefik.http.routers.redpanda.rule=Host(`redpanda.digitribe.fr`)"
+      - "traefik.http.routers.redpanda.entrypoints=websecure"
+      - "traefik.http.routers.redpanda.tls=true"
+      - "traefik.http.services.redpanda.loadbalancer.server.port=9644"
+
+networks:
+  traefik-public:
+    external: true
+  smartcity-shared:
+    external: true
+
+volumes:
+  redpanda-data:

redpanda/redpanda.yaml

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+# Redpanda configuration for Smart City Digital Twin Martinique
+# Minimal working config - Kafka + Admin API only
+
+redpanda:
+  node_id: 0
+  data_directory: /var/lib/redpanda/data
+
+  kafka_api:
+    - name: internal
+      address: 0.0.0.0
+      port: 9092
+
+  advertised_kafka_api:
+    - name: internal
+      address: smart-city-redpanda
+      port: 9092
+
+  admin:
+    - address: 0.0.0.0
+      port: 9644
+
+# Seastar settings
+seastar:
+  smp: 1
+  memory: 1G
+  reserve_memory: 256M
+  overprovisioned: true
+
+developer_mode: true

redpanda/start.sh

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+#!/bin/bash
+# Start Redpanda with minimal dev config
+exec /usr/bin/rpk redpanda start \
+  --mode dev \
+  --smp 1 \
+  --memory 1G \
+  --overprovisioned \
+  --kafka-addr 0.0.0.0:9092 \
+  --advertise-kafka-addr smart-city-redpanda:9092 \
+  --rpc-addr 0.0.0.0:33145 \
+  --advertise-rpc-addr smart-city-redpanda:33145 \
+  --check=false