fix: Redpanda start.sh + FROST direct simulator + Prometheus config

- Redpanda : correction start.sh (v24.3.14)
- FROST : ENABLE_FROST=true dans simulator (test direct)
- Pulsar : distribution.py mis à jour (mais ConnectError)
- Prometheus : config ajoutée (prometheus.yml)
- Grafana : datasources prêtes

prometheus.yml

@@ -0,0 +1,31 @@
+global:
+  scrape_interval: 15s
+  evaluation_interval: 15s
+
+scrape_configs:
+  # Mosquitto MQTT Broker
+  - job_name: 'mosquitto'
+    static_configs:
+      - targets: ['mosquitto-exporter:9234']
+    scrape_interval: 10s
+
+  # Orion-LD (FIWARE)
+  - job_name: 'orion-ld'
+    static_configs:
+      - targets: ['fiware-gis-quickstart-orion-1:1026']
+    metrics_path: '/metrics'
+    scrape_interval: 10s
+
+  # FROST-Server (SensorThings)
+  - job_name: 'frost-server'
+    static_configs:
+      - targets: ['frost_http-web-1:8080']
+    metrics_path: '/FROST-Server/metrics'
+    scrape_interval: 10s
+
+  # Stellio NGSI-LD
+  - job_name: 'stellio'
+    static_configs:
+      - targets: ['stellio:8080']
+    metrics_path: '/metrics'
+    scrape_interval: 10s