Completed the requested demo MCSJ task in chestervillagenydb.

Created and saved Purchase Order 26-02127 for vendor 10TO7005 (10 TO 75 EMERGENCY LIGHTING).

Header description: Birthday cake for Foster
Saved line item: Item Seq 1
Line description: Birthday cake for Foster
Charge To: Expenditure
Account: A-1110-0200
Quantity: 1.0000
Unit Price: 1.00
Item Total: 1.00
Status: Open

Verified saved state: line fields were read-only and Add/Edit/Close/navigation buttons were enabled after the final save. Header read-back showed PO 26-02127, description Birthday cake for Foster, line count 1, and PO total 1.00.

PrintWindow proof succeeded despite disconnected-desktop BitBlt failure.