Correct Kimi Code effort to Thinking; standardize worker docs on bunx

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

models/kimi-k2-6.json

@@ -3,7 +3,7 @@
   "vendor": "Moonshot AI",
   "order": 100,
   "harness": "Kimi Code",
-  "effort": "Default",
+  "effort": "Thinking",
   "runs": {
     "mythos-craft": {
       "note": {