feat(content): the Seven — seven demon kings and their blood

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HuHRPE7VfppUJEaoGBEUqZ

content/world/canon/kareth-the-red-king.json

@@ -0,0 +1,8 @@
+{
+  "body": "Kareth, the Red King, first and loudest of the Seven. The blood he wants is the battlefield's \u2014 slaughter, the more of it and the less reason the better. His army is the horde, and it grows because he is generous with the promise of victory and the men who take it rarely live to complain that it was a lie. He does not whisper. He works through the rage already in a mortal, the feud that only needs a reason, the certainty that the sword is the short way through. Where Kareth has been, there is a field that will not grow for a generation and no one left who remembers starting it.",
+  "id": "person.kareth-the-red-king",
+  "related": [
+    "faction.the-seven"
+  ],
+  "type": "person"
+}