{
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        "advanced": 9
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      "subdirectories": ["events", "extensions", "integration"],
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    },
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      "description": "Data access patterns, table operations, and database interaction best practices",
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      "key_topics": ["deleteall-patterns", "setloadfields-optimization", "table-safety"],
      "difficulty_levels": {"beginner": 4, "intermediate": 6, "advanced": 2},
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    },
    "validation": {
      "title": "BC Validation and Error Handling",
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      "subdirectories": ["error-handling", "field-validation", "business-rules"],
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      "tags": ["validation", "error-handling", "data-integrity", "business-rules"]
    },
    "api": {
      "title": "BC API Development and Integration",
      "description": "API design patterns, web service development, and external integration approaches",
      "topic_count": 8,
      "subdirectories": ["web-services", "odata", "rest-apis"],
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  "global_statistics": {
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    "total_domains": 5,
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      "advanced": 21
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  "generation_metadata": {
    "generated_at": "2025-09-03T00:00:00Z",
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    "tag_indexes_generated": 153,
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  }
}