{
  "entities": {
    "NewsItem": {
      "title": "News Item",
      "description": "A single news item with title, url, and summary.",
      "type": "object",
      "properties": {
        "title": { "type": "string" },
        "url": { "type": "string" },
        "summary": { "type": "string" }
      },
      "required": ["title", "url", "summary"]
    },
    "Synthesis": {
      "title": "Synthesis",
      "description": "Weekly AI news synthesis.",
      "type": "object",
      "properties": {
        "week": { "type": "string", "description": "ISO week string, e.g., 2026-W12" },
        "createdAt": { "type": "timestamp" },
        "authorUid": { "type": "string" },
        "majorAnnouncements": { "type": "array", "items": { "$ref": "#/entities/NewsItem" } },
        "financialSector": { "type": "array", "items": { "$ref": "#/entities/NewsItem" } },
        "otherEnterprises": { "type": "array", "items": { "$ref": "#/entities/NewsItem" } },
        "publicSector": { "type": "array", "items": { "$ref": "#/entities/NewsItem" } },
        "generalPublic": { "type": "array", "items": { "$ref": "#/entities/NewsItem" } },
        "sections": { "type": "array", "items": { "type": "object" } }
      },
      "required": ["week", "createdAt", "authorUid"]
    },
    "Settings": {
      "title": "Settings",
      "description": "User specific settings for synthesis generation.",
      "type": "object",
      "properties": {
        "theme": { "type": "string" },
        "maxAgeDays": { "type": "number" },
        "categories": { "type": "array", "items": { "type": "string" } },
        "maxItemsPerCategory": { "type": "number" }
      },
      "required": ["theme", "maxAgeDays", "categories", "maxItemsPerCategory"]
    },
    "Source": {
      "title": "Source",
      "description": "A custom news source.",
      "type": "object",
      "properties": {
        "title": { "type": "string" },
        "url": { "type": "string" },
        "authorUid": { "type": "string" },
        "createdAt": { "type": "timestamp" }
      },
      "required": ["title", "url", "authorUid", "createdAt"]
    }
  },
  "firestore": {
    "/syntheses/{synthesisId}": {
      "schema": { "$ref": "#/entities/Synthesis" },
      "description": "Stores weekly syntheses."
    },
    "/sources/{sourceId}": {
      "schema": { "$ref": "#/entities/Source" },
      "description": "Stores custom sources per user."
    },
    "/settings/{userId}": {
      "schema": { "$ref": "#/entities/Settings" },
      "description": "Stores user settings."
    }
  }
}