Coordinator now polls all 'starting' instances every 5 s via GET /health.
On 200: state → running. After 300 s without a healthy response: state →
stopped. Closes#10.
max_mb // 2 was too loose — Qwen2.5-3B needs ~5.9 GB on an 8 GB card
but the threshold only required 3.25 GB free, allowing Ollama to hold
4.5 GB while a load attempt was still dispatched (causing OOM crash).
- node_selector: can_fit = free_mb >= service_max_mb (was // 2)
- coordinator /start: same threshold fix + updated error message
- tests: two new node_selector tests pin the full-ceiling semantics;
updated stale docstring in coordinator app test
- apply_chat_template() returns BatchEncoding in transformers 5.x (not bare tensor);
extract .input_ids explicitly with fallback for 4.x compat
- Switch from deprecated torch_dtype= to dtype= in from_pretrained()
