chart data fixes

gateway/src/channels/websocket-handler.ts

@@ -16,7 +16,6 @@ import {
   type SnapshotMessage,
   type PatchMessage,
 } from '../workspace/index.js';
-import { resolutionToSeconds } from '../types/ohlc.js';
 
 /**
  * Safe JSON stringifier that handles BigInt values
@@ -487,7 +486,7 @@ export class WebSocketHandler {
           }
           const history = await ohlcService.fetchOHLC(
             payload.symbol,
-            resolutionToSeconds(payload.resolution),
+            payload.period_seconds,
             payload.from_time,
             payload.to_time,
             payload.countback

gateway/src/clients/duckdb-client.ts

@@ -525,9 +525,9 @@ export class DuckDBClient {
       // Check if we have continuous data
       // For now, simple check: if we have any data, assume complete
       // TODO: Implement proper gap detection by checking for missing periods
-      const periodMicros = BigInt(period_seconds) * 1000000n;
+      const periodNanos = BigInt(period_seconds) * 1_000_000_000n;
       // end_time is exclusive, so expected count = (end - start) / period (no +1)
-      const expectedBars = Number((end_time - start_time) / periodMicros);
+      const expectedBars = Number((end_time - start_time) / periodNanos);
 
       if (data.length < expectedBars * 0.95) { // Allow 5% tolerance
         this.logger.debug({