Modified {{investigation}} to show both:
1. Textarea content (advise_investigation_notes) if present
2. Comma-separated test list from opd_prescription_investigation table
Both sources combined with newline separator when both exist.
{{Tadvise_test_list}} still available separately for backward compatibility.
Example combined output:
USG WHOLE ABDOMEN
CECT ABDOMEN
PAC
COMPLETE CARDIAC CHECK UP
PAP SMEAR
CBC (Complete Blood Count), ECG (Electrocardiogram), HBA1C, HBSAG, HCV, HIV I & II (Elisa), Liver Function Test (LFT), PT/INR, Renal Function Test (RFT), Urine Routine & Microscopy, X-Ray Chest (PA View)
DevSoftTech Server
6314bafa29