Add hypertensionDiagnosedAt and diabetesDiagnosedAt (#5661)

https://app.shortcut.com/simpledotorg/story/17240/set-the-diagnosed-dates-for-hypertension-and-diabetes

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Co-authored-by: sagarwal <[email protected]>

Author: siddh1004

CHANGELOG.md

@@ -36,6 +36,7 @@
 - Hide next button when registration is going
 - Add Suspected option to hypertension and diabetes questions
 - Handle Screening feature visibility based on feature flag `Screening`
+- Add `hypertensionDiagnosedAt` and `diabetesDiagnosedAt` in `MedicalHistory` table
 
 ## 2025.09.09