Get Library Wiki Index

Return Library topic cards for the All tab.

The response is deliberately flat: one row per community with its surfaced entities and crystals, so the client can render the index in one round-trip.

curl -X GET "http://127.0.0.1:14242/library/wiki-index"

null

{
  "detail": [
    {
      "loc": [
        "string"
      ],
      "msg": "string",
      "type": "string",
      "input": null,
      "ctx": {}
    }
  ]
}