Add Battery and ChannelUtilization tables

prisma/migrations/20250422203347_add_battery_and_channel_util_stats/migration.sql

@@ -0,0 +1,19 @@
+-- CreateTable
+CREATE TABLE `battery_stats` (
+    `id` BIGINT NOT NULL AUTO_INCREMENT,
+    `recorded_at` DATETIME(3) NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `avg_battery_level` DECIMAL(5, 2) NULL,
+
+    INDEX `battery_stats_recorded_at_idx`(`recorded_at`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `channel_utilization_stats` (
+    `id` BIGINT NOT NULL AUTO_INCREMENT,
+    `recorded_at` DATETIME(3) NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `avg_channel_utilization` DECIMAL(65, 30) NULL,
+
+    INDEX `channel_utilization_stats_recorded_at_idx`(`recorded_at`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;

prisma/schema.prisma

@@ -301,3 +301,21 @@ model Waypoint {
   @@index(gateway_id)
   @@map("waypoints")
 }
+
+model BatteryStats {
+  id                BigInt    @id @default(autoincrement())
+  recorded_at       DateTime? @default(now())
+  avg_battery_level Decimal?  @db.Decimal(5, 2)
+
+  @@index([recorded_at])
+  @@map("battery_stats")
+}
+
+model ChannelUtilizationStats {
+  id                      BigInt    @id @default(autoincrement())
+  recorded_at             DateTime? @default(now())
+  avg_channel_utilization Decimal?
+
+  @@index([recorded_at])
+  @@map("channel_utilization_stats")
+}