fix(ollama): check model template for tool support via /api/show (#11670)

fix(ollama): check model template for tool support before sending tools

Ollama models only support tool calling if their template includes
.Tools. The heuristic in toolSupport.ts was too broad, causing 400
errors for models whose templates lack tool support.

Two changes:
- Query /api/show template for .Tools (same pattern as existing .Suffix
  FIM check) and skip sending tools when the template says no
- Exclude Ollama cloud models (:cloud tag) in the heuristic, since
  cloud tool calling is unreliable

Fixes #9639 #9646 #9875 #10304 #10461 #10539 #10561 #10593 #10640
Fixes #10672 #10833 #10876 #11308 #11382 #11402