feat(content): cosmology frame — the Warden, the Sent, the Seven

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

content/world/canon/the-warden.json

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+{
+  "body": "The god most of the Margreave professes, though few claim to have felt him. He is called only the Warden; no living mouth speaks his name, and the priests who might have known it are a long time dead. What the faithful hold is simple: he made the races, he loves them, and he wards the world against the Seven. What he asks in return is worship, and what he gives for it is blessing \u2014 rarely, and never where you can point to it and be sure. He does not come when called. Whether that is because he is good and restrained, or absent, or dead, is the oldest argument there is, and the Margreave has never settled it.",
+  "id": "person.the-warden",
+  "related": [
+    "faction.the-sent",
+    "faction.the-seven",
+    "rule.the-pact"
+  ],
+  "type": "person"
+}