[Quality Management] Enable periodic inspections and improve schedule group UX

[alexei-dobriansky]

• Enable item ledger entry as an inspection source so users can create inspections against open inventory (periodic/stock inspections)
• Allow the Schedule Inspection report to be used for bulk creating inspections without requiring a schedule group, not just via job queue
• Revert accidental change that bypassed the "please choose a record first" validation in the Create Inspection report
• Restore schedule group value when the user declines to create a job queue entry, preventing orphaned schedule groups

Fixes AB#621965

[alexei-dobriansky]

@microsoft-github-policy-service agree company="Microsoft"