fix(record): preserve committed empty fill steps

Allow intentional input clears to remain in exported traces instead of dropping every non-redacted blank fill.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/extension/src/lib/trace-reducer.ts

@@ -18,7 +18,6 @@ export function shouldRecordPress(
 }
 
 function shouldIncludeDraft(step: DraftTraceStep): boolean {
-  if (step.op === "fill" && !(step.value ?? "").trim() && !step.redacted) return false;
   if (step.op === "press" && !shouldRecordPress(step.key, step.modifiers)) return false;
   return true;
 }