Add initial configuration and templates for feedstack role.

templates/nats/nats.conf.j2

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+# Single-node NATS configuration for local app-to-app messaging.
+# WeatherFeeder can publish to this server without authentication.
+
+# Client connections (WeatherFeeder + consumers).
+port: 4222
+
+# HTTP monitoring endpoint.
+monitor_port: 8222
+
+# Optional persistence for future stream use.
+jetstream {
+  store_dir: "/data"
+}

templates/weatherfeeder/config.yml.j2

@@ -0,0 +1,59 @@
+---
+sources:
+  - name: NWSObservationKSTL
+    kind: observation
+    driver: nws_observation
+    every: 10m
+    params:
+      url: "https://api.weather.gov/stations/KSTL/observations/latest"
+      user_agent: "HomeOps (weatherfeeder@maximumdirect.net)"
+
+  - name: OpenMeteoObservation
+    kind: observation
+    driver: openmeteo_observation
+    every: 10m
+    params:
+      url: "https://api.open-meteo.com/v1/forecast?latitude=38.6263&longitude=-90.3432&current=temperature_2m,relative_humidity_2m,weather_code,wind_speed_10m,wind_direction_10m,precipitation,surface_pressure,rain,showers,snowfall,cloud_cover,apparent_temperature,is_day,wind_gusts_10m,pressure_msl&forecast_days=1"
+      user_agent: "HomeOps (weatherfeeder@maximumdirect.net)"
+
+  - name: NWSObservationKSUS
+    kind: observation
+    driver: nws_observation
+    every: 10m
+    params:
+      url: "https://api.weather.gov/stations/KSUS/observations/latest"
+      user_agent: "HomeOps (weatherfeeder@maximumdirect.net)"
+
+  - name: NWSObservationKCPS
+    kind: observation
+    driver: nws_observation
+    every: 10m
+    params:
+      url: "https://api.weather.gov/stations/KCPS/observations/latest"
+      user_agent: "HomeOps (weatherfeeder@maximumdirect.net)"
+
+  - name: NWSHourlyForecastSTL
+    kind: forecast
+    driver: nws_forecast
+    every: 45m
+    params:
+      url: "https://api.weather.gov/gridpoints/LSX/90,74/forecast/hourly"
+      user_agent: "HomeOps (weatherfeeder@maximumdirect.net)"
+
+  - name: NWSAlertsSTL
+    kind: alert
+    driver: nws_alerts
+    every: 1m
+    params:
+      url: "https://api.weather.gov/alerts?point=38.6263,-90.3432&limit=20"
+      user_agent: "HomeOps (weatherfeeder@maximumdirect.net)"
+
+sinks:
+  - name: stdout
+    driver: stdout
+    params: {}
+
+routes:
+  - sink: stdout
+    kinds: ["observation", "forecast", "alert"]
+...