USER STORY: DVTk Query Retrieve SCP Emulator - Return error code when query is incorrect

[HealthcareICT]

👤 User Statement

As a [type of user]
I want to [perform some action]
So that [I can achieve some goal/benefit]

When the query is incorrect, either because of missing keys or other errors then return an error code instead of the status complete.
Needed to distinguish between errors and no matches.

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📋 Acceptance Criteria

These must be met for the story to be marked as "Done":

• [Criteria 1]
• [Criteria 2]
• [Criteria 3]

🛠 Technical Tasks

Breakdown of the work required:

• Task 1
• Task 2

🎨 Design/Mockups (Optional)

Link to Figma or upload screenshots here.

🔗 Related Feature/Epic

• Part of: FEATURE: DVTk Tool Improvement #27