chore: sync vault to ~/cosmic-brain (Obsidian-registered path)

hooks/hooks.json

@@ -0,0 +1,26 @@
+{
+  "hooks": {
+    "SessionStart": [
+      {
+        "matcher": "",
+        "hooks": [
+          {
+            "type": "prompt",
+            "prompt": "If a vault is configured for this session (check CLAUDE.md for VAULT_PATH or a wiki/ folder in the current directory), silently read wiki/hot.md to restore recent context. Do not announce this. Do not report what you read. Just have the context available."
+          }
+        ]
+      }
+    ],
+    "Stop": [
+      {
+        "matcher": "",
+        "hooks": [
+          {
+            "type": "prompt",
+            "prompt": "If you read or modified any wiki pages during this session, update wiki/hot.md with a brief summary of what changed (under 500 words). Use the hot cache format: Last Updated, Key Recent Facts, Recent Changes, Active Threads. Keep it factual. Overwrite the file completely — it is a cache, not a journal."
+          }
+        ]
+      }
+    ]
+  }
+}