C0: review ollama doc — refresh image, models, last-reviewed

Bumped documented image tag to 0.20.4 (matches kustomization newTag),
added the two qwen3.5 models from models.txt, and stamped the card.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

docs/reference/services/ollama.md

@@ -1,6 +1,7 @@
 ---
 title: Ollama
-modified: 2026-03-04
+modified: 2026-05-01
+last-reviewed: 2026-05-01
 tags:
   - service
   - ai
@@ -18,7 +19,7 @@ LLM inference server with GPU acceleration. Runs on [[ringtail]] with declarativ
 | **Tailscale URL** | https://ollama.tail8d86e.ts.net |
 | **Namespace** | `ollama` |
 | **Cluster** | ringtail k3s |
-| **Image** | `ollama/ollama:0.17.5` |
+| **Image** | `ollama/ollama:0.20.4` |
 | **Upstream** | https://github.com/ollama/ollama |
 | **Manifests** | `argocd/manifests/ollama/` |
 | **API Port** | 11434 |
@@ -50,6 +51,8 @@ Declared in `argocd/manifests/ollama/models.txt`. The model-sync sidecar pulls m
 | `deepseek-r1:14b` | 14B |
 | `phi4:14b` | 14B |
 | `gemma3:12b` | 12B |
+| `qwen3.5:9b` | 9B |
+| `qwen3.5:27b` | 27B |
 
 To add or remove models, edit `models.txt` and sync via ArgoCD.