ApplyEdits endpoint with add/update/delete

[mikemcdougall]

Summary

Implement FeatureServer applyEdits endpoint for CRUD operations.

Tasks

• Create applyEdits POST endpoint
• Parse adds array from request
• Parse updates array from request
• Parse deletes array from request
• Implement feature creation logic
• Implement feature update logic
• Implement feature deletion logic
• Generate objectIds for new features
• Build success/failure response per operation
• Add validation for input features
• Add error handling for each operation type
• Add integration tests for add operations
• Add integration tests for update operations
• Add integration tests for delete operations
• Document applyEdits endpoint

Acceptance Criteria

• POST /rest/services/{serviceId}/FeatureServer/{layerIndex}/applyEdits
• adds array creates new features
• updates array updates existing features by objectId
• deletes array removes features by objectId
• Response includes success/failure per operation

Legacy Reference

• ../Honua.Server/src/protocol/geoservices/Editing/

Test Plan

• Integration test: add feature returns new objectId
• Integration test: update feature modifies attributes
• Integration test: delete feature removes from database