U4 Issue 1: Update the Database

### Description

Effort: We estimate that this will take 2-3 hours.
	Size: Small
	Dependencies: N/A
	Assignments: Partner 1
	Milestone: Sprint 1
	Acceptance Criteria:
		Database migration runs successfully
		New fields exist with correct default values
		Existing posts remain unaffected.

### Community forum reference

_No response_