Importing kimi-k2.7-code via Ollama Cloud's 'import from /models' left it
with the 128000/8192 capability defaults and no vision, because the model
had no spec/registry entry and Ollama Cloud's /v1/models upstream returns
no per-model metadata. Add a global kimi-k2.7-code model spec (parity with
kimi-k2.6: 262K context/output, vision + thinking + tools) and a registry
entry on ollama-cloud so the real capabilities resolve.
Closes#3761
3c8f347c88