fix(tsql): carry the bucket-width floor into child printer contexts

createChildContext forwarded every other context-carried option, including
fillGaps, but not minBucketSeconds, so a nested query part would have computed
an unfloored bucket interval. No caller reaches this today, so it is latent
rather than broken, but it is the same omission that would have been a live bug
for fillGaps.

Author: ericallam

internal-packages/tsql/src/query/printer_context.ts

@@ -241,7 +241,8 @@ export class PrinterContext {
       this.fieldMappings,
       this.enforcedWhereClause,
       this.timeRange,
-      this.fillGaps
+      this.fillGaps,
+      this.minBucketSeconds
     );
     // Share the same values map so parameters are unified
     child.values = this.values;