feat(provider): add fission_mq_trigger, fission_cron_trigger, fission_iot_device + weather-demo example

examples/weather-demo/migration.sql

@@ -0,0 +1,18 @@
+-- Миграция: таблица метрик погоды для weather-demo
+-- Применять: psql $PG_DSN -f migration.sql
+
+CREATE TABLE IF NOT EXISTS weather_metrics (
+    id          BIGSERIAL PRIMARY KEY,
+    city        TEXT        NOT NULL,
+    country     TEXT        NOT NULL,
+    temperature NUMERIC(5,2),
+    feels_like  NUMERIC(5,2),
+    humidity    INTEGER,
+    pressure    INTEGER,
+    wind_speed  NUMERIC(6,2),
+    description TEXT,
+    recorded_at TIMESTAMPTZ NOT NULL DEFAULT now()
+);
+
+CREATE INDEX IF NOT EXISTS idx_weather_city_time
+    ON weather_metrics (city, recorded_at DESC);