Ollama health check uses localhost — fails on systems where localhost resolves to IPv6

[campey]

Bug

The skill's Step 1 health check:

```bash
curl -s http://localhost:11434 > /dev/null 2>&1 || (ollama serve ...)
```

Ollama binds to 127.0.0.1:11434 by default. On systems where localhost resolves to ::1 (IPv6 loopback), this curl will fail even though Ollama is already running — causing the skill to attempt a second ollama serve, which will either fail or result in two competing processes.

Confirmed locally: curl http://localhost:11434 fails while curl http://127.0.0.1:11434 succeeds.

Fix

Replace http://localhost:11434 with http://127.0.0.1:11434 in the health check. Same fix applies anywhere else in the skill or docs that references Ollama via localhost.