feat: final foot-pedal flow,, duplicate-scan protection, and improved CSV report layout

Nameru Thaparequested to merge
feature/report-and-kpi-improvements-footpedal-final-check into main

This release finalizes the worker kiosk flow and improves reporting:

  • Correction with timestamps.
    • Duplicate barcode scans before step completion no longer create extra arrivals or zero-time station visits.
  • KPI filtering:
    • Only complete station visits (with both arrival and departure) are included in KPI calculations.
    • Prevents scan-only events from being counted as completed work with 0 minutes processing time.
  • Per-station output & finished goods:
    • Added logic to compute:
      • Station Output (ST-xx): number of units that completed all steps at that station.
      • Finished Goods: number of units that completed all steps in the job.
    • These are now included in production reports and can be used in dashboards.
  • Improved CSV report layout:
    • Summary section at the top:
      • Job Name, Barcode, Date, Planned Quantity, Completed Units, Finished Goods, Station Outputs, Completion Method, Activated At, Finished At.
    • Timeline section below:
      • Per-unit rows: Production Started, Step Completed, Unit Completed.
      • Timestamps shown as HH:MM:SS, date stored once in summary.

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