fix repeatable migrations

db/routines/R__048_fn_telemetry_heat_pump_sample.sql

@@ -0,0 +1,38 @@
+create or replace function ems.fn_telemetry_heat_pump_sample(
+  p_site_id int,
+  p_heat_pump_id int,
+  p_measured_at timestamptz,
+  p_power_w int,
+  p_outdoor_temp_c double precision,
+  p_water_outlet_temp_c double precision,
+  p_tuv_tank_temp_c double precision,
+  p_operating_mode text
+)
+returns void
+language sql
+as $fn$
+  insert into ems.telemetry_heat_pump (
+    site_id,
+    heat_pump_id,
+    measured_at,
+    power_w,
+    outdoor_temp_c,
+    water_outlet_temp_c,
+    tuv_tank_temp_c,
+    operating_mode
+  )
+  values (
+    p_site_id,
+    p_heat_pump_id,
+    p_measured_at,
+    p_power_w,
+    p_outdoor_temp_c,
+    p_water_outlet_temp_c,
+    p_tuv_tank_temp_c,
+    p_operating_mode
+  )
+  on conflict (heat_pump_id, measured_at) do nothing;
+$fn$;
+
+comment on function ems.fn_telemetry_heat_pump_sample is
+  'Insert telemetrie TČ (placeholder Modbus).';