data grand lyon: add refresh blueprint

source/_integrations/data_grand_lyon.markdown

@@ -89,6 +89,32 @@ For each transit stop you add, the following sensor entities are created:
 - **Next departure 3 type**
   - **Description**: Whether the departure time is _estimated_ or _theoretical_. Disabled by default.
 
+## Examples
+
+### Refresh data more frequently during a time window
+
+Get fresher upcoming-departure data before your commute without raising the polling rate the rest of the day. This blueprint refreshes a transit stop's sensors at a configurable interval inside a time window — by default, every minute between 8:00 and 9:00.
+
+{% my blueprint_import badge blueprint_url="https://www.home-assistant.io/blueprints/integrations/data_grand_lyon_refresh_during_time_window.yaml" %}
+
+{% details "Example YAML" %}
+
+```yaml
+triggers:
+  - trigger: time_pattern
+    minutes: "/1"
+conditions:
+  - condition: time
+    after: "08:00:00"
+    before: "09:00:00"
+actions:
+  - action: homeassistant.update_entity
+    target:
+      entity_id: sensor.my_stop_next_departure_1
+```
+
+{% enddetails %}
+
 ## Data updates
 
 The integration polls data from the Data Grand Lyon API every 5 minutes by default.

source/blueprints/integrations/data_grand_lyon_refresh_during_time_window.yaml

@@ -0,0 +1,60 @@
+blueprint:
+  name: "Data Grand Lyon: refresh more frequently during a time window"
+  description: >
+    Refresh a Data Grand Lyon transit stop's sensors more frequently during a
+    configurable time window — by default, every minute between 8:00 and 9:00.
+
+
+    Useful to get fresher upcoming-departure data before your commute without
+    raising the polling rate the rest of the day.
+
+
+    Tip: refreshing one sensor of a transit stop refreshes every sensor for
+    that stop, since they share the same data source. You only need to pick
+    one sensor per stop.
+  domain: automation
+  input:
+    sensor:
+      name: Sensor to refresh
+      description: A sensor from a Data Grand Lyon transit stop.
+      selector:
+        entity:
+          filter:
+            integration: data_grand_lyon
+            domain: sensor
+    start_time:
+      name: Start time
+      description: When to start refreshing more frequently.
+      default: "08:00:00"
+      selector:
+        time:
+    end_time:
+      name: End time
+      description: When to stop refreshing more frequently.
+      default: "09:00:00"
+      selector:
+        time:
+    interval_minutes:
+      name: Refresh interval (minutes)
+      description: How often to refresh the data, in minutes.
+      default: 1
+      selector:
+        number:
+          min: 1
+          max: 5
+          step: 1
+          unit_of_measurement: min
+          mode: slider
+trigger_variables:
+  interval_minutes: !input interval_minutes
+triggers:
+  - trigger: time_pattern
+    minutes: "/{{ interval_minutes }}"
+conditions:
+  - condition: time
+    after: !input start_time
+    before: !input end_time
+actions:
+  - action: homeassistant.update_entity
+    target:
+      entity_id: !input sensor