Add generic ENLYZE power meter pipeline

db/schema.sql

@@ -46,3 +46,27 @@ CREATE TABLE IF NOT EXISTS material_application_snapshots (
 
 CREATE INDEX IF NOT EXISTS material_application_snapshots_machine_time_idx
     ON material_application_snapshots (calculation_id, machine_id, timestamp);
+
+CREATE TABLE IF NOT EXISTS power_meter_readings (
+    meter text NOT NULL,
+    timestamp timestamptz NOT NULL,
+    energy_total_kwh double precision NOT NULL,
+    energy_delta_kwh double precision NOT NULL,
+    active_power_total_kw double precision NOT NULL,
+    grid_frequency_hz double precision NOT NULL,
+    power_outages double precision NULL,
+    outage_delta double precision NULL,
+    phase_active_power_kw jsonb NOT NULL DEFAULT '{}'::jsonb,
+    PRIMARY KEY (meter, timestamp)
+);
+CREATE INDEX IF NOT EXISTS power_meter_readings_time_idx
+    ON power_meter_readings (meter, timestamp DESC);
+
+CREATE TABLE IF NOT EXISTS power_meter_monthly_reports (
+    meter text NOT NULL,
+    month text NOT NULL,
+    report_path text NOT NULL,
+    summary jsonb NOT NULL,
+    generated_at timestamptz NOT NULL DEFAULT now(),
+    PRIMARY KEY (meter, month)
+);