Chore: regenerate docs navigation

Auto-generated-by: update-generated-files-action; https://github.com/OpenRouterTeam/python-sdk/actions/runs/35306907206

Author: github-actions[bot]

docs/docs.json

@@ -20,6 +20,7 @@
       "sdks/containers/README",
       "sdks/credits/README",
       "sdks/datasets/README",
+      "sdks/decisions/README",
       "sdks/embeddings/README",
       "sdks/endpoints/README",
       "sdks/files/README",