feat: add direct car telemetry management

server/src/car-telemetry.ts

@@ -21,6 +21,7 @@ type StoredSample = {
 };
 
 export type TelemetryPeriod = "24h" | "7d" | "30d" | "1y" | "all";
+export type ClearTelemetryMode = "history" | "all";
 
 export type TelemetryHistoryPoint = {
   timestamp: number;
@@ -252,6 +253,39 @@ export class CarTelemetryStore {
     transaction();
   }
 
+  clear(mode: ClearTelemetryMode): { mode: ClearTelemetryMode; deletedSamples: number; deletedRollups: number } {
+    const transaction = this.database.transaction(() => {
+      const deletedSamples = this.database.prepare("DELETE FROM car_telemetry_samples").run().changes;
+      const deletedRollups = this.database.prepare("DELETE FROM car_telemetry_hourly").run().changes;
+
+      if (mode === "all") {
+        this.database.prepare(
+          `UPDATE car_telemetry_stats SET
+            first_sample_at = NULL,
+            last_sample_at = NULL,
+            sample_count = 0,
+            peak_speed_kph = NULL,
+            peak_speed_at = NULL,
+            peak_charging_power_kw = NULL,
+            peak_charging_power_at = NULL,
+            max_observed_range_km = NULL,
+            max_observed_range_at = NULL,
+            tracked_distance_km = 0,
+            driving_seconds = 0,
+            charging_seconds = 0,
+            charge_sessions = 0,
+            soc_used_percent = 0
+           WHERE id = 1`
+        ).run();
+      }
+
+      return { mode, deletedSamples, deletedRollups };
+    });
+
+    this.#samplesSincePrune = 0;
+    return transaction();
+  }
+
   overview() {
     const stats = this.database.prepare("SELECT * FROM car_telemetry_stats WHERE id = 1").get() as Record<string, number | null>;
     const latest = rowToStored(this.database.prepare("SELECT * FROM car_telemetry_samples ORDER BY recorded_at DESC LIMIT 1").get() as Record<string, unknown> | undefined);