Schema Validation Implementation

[michaelbeale-IL]

Implement JSON schema validator and integrate with configuration loading.

Acceptance Criteria:

• Schema validation library integrated
• Validation occurs before config deserialization
• Clear error messages for validation failures
• Optional strict mode (fail vs warn)
• Validation performance acceptable (<100ms)
• Tests for validation logic

Technical Approach:

• Use Json.NET Schema or System.Text.Json validation
• Validate in JsonConfigurationLoader
• Provide detailed validation errors
• Consider caching compiled schemas

Files to Modify:

• Libraries/ACATCore/Utility/JsonConfigurationLoader.cs
• Create Libraries/ACATCore/Utility/JsonSchemaValidator.cs
• Update preference loading code

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Epic: Configuration System Enhancement

Estimated Effort: 4 days