Restructure pageData to use direct section keys instead of numbered pages

[Copilot]

This PR restructures the pageData object in db.json to have section types as direct children instead of using numbered page containers.

Changes Made

Before:

"pageData": {
  "1": {
    "orders": [...],
    "shipments": [...], 
    "documents": [...],
    "appeals": [...]
  }
}

After:

"pageData": {
  "orders": [...],
  "shipments": [...],
  "documents": [...], 
  "appeals": [...]
}

Impact

This change simplifies the data structure by removing the intermediate numbered page layer ("1") and making the section types (orders, shipments, documents, appeals) direct properties of the pageData object. This provides a cleaner, more direct access pattern for consuming applications.

The data content remains unchanged - only the organizational structure has been modified to eliminate the nested page numbering system.

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