Add Open-Meteo hourly weather pipeline + queue/weather view

Backfills knoebels."LZ_open_meteo_hourly" from 2024-05-15 (start of queue
collection) and keeps it current. Imperial units; timestamps stored as naive
America/New_York to line up with the rest of the knoebels schema.

- weather_logger.py: --backfill uses the ERA5 Archive API; default mode does a
  self-healing recent sync via the Forecast API (past_days=7, upsert on conflict)
- docker-compose.yml: add `weather` oneshot service (also align scraper to its
  live `oneshot` profile)
- systemd/knb-weather.{service,timer}: nox user timer, every 6h (linger enabled)
- queries/dm_knb_queue_weather.sql: dm_knb_queue_weather view joining the full
  queue-time series to hourly weather (hour-bucketed), with a WMO code decode

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

docker-compose.yml

@@ -3,7 +3,7 @@ services:
     build: .
     image: kuh-no-bowls:latest
     container_name: kuh-no-bowls-scraper
-    restart: unless-stopped
+    profiles: ["oneshot"]
     env_file: .env
     environment:
       LOG_PATH: /var/log/kuh-no-bowls/kuh-no-bowls.log
@@ -13,6 +13,24 @@ services:
     networks:
       - services_net
 
+  # Hourly Open-Meteo weather -> knoebels."LZ_open_meteo_hourly".
+  # Oneshot, run from cron. Default mode does the recent sync; pass --backfill
+  # once to load history: docker compose --profile oneshot run --rm weather --backfill
+  weather:
+    build: .
+    image: kuh-no-bowls:latest
+    container_name: kuh-no-bowls-weather
+    profiles: ["oneshot"]
+    entrypoint: ["python", "-u", "weather_logger.py"]
+    env_file: .env
+    environment:
+      LOG_PATH: /var/log/kuh-no-bowls/weather.log
+      TZ: America/New_York
+    volumes:
+      - knb_logs:/var/log/kuh-no-bowls
+    networks:
+      - services_net
+
   dashboard:
     build: .
     image: kuh-no-bowls:latest