SMART BIHAR RTPS V15.1.3 — NCL Runtime Fix

1. NCL DOB field 41857 robust native/jQuery events के साथ auto fill.
2. NCL attachments actual Bihar checkbox group 42248 से sync.
3. NCL box में saved affidavit/residence/caste/income के अनुसार home page tick.
4. सिंचित जमीन optional checkbox 42248_6 auto OFF.
5. Existing Income profile values NCL income box में fallback: Govt->Job, Business->Business, Agriculture->Agriculture, Total->Annual.
6. OBC DOB robust fill भी same helper से.
7. Key/Lock/Payment/License logic unchanged.
