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/start.sh

@@ -0,0 +1,12 @@
+#!/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