feat(ai): add OpenRouter and Ollama Cloud providers (#231)

Co-authored-by: Alex Kenley <Alex.Kenley@threatvectorsecurity.com>

tests/test_llm_core_ollama.py

@@ -0,0 +1,43 @@
+"""Regression tests for native Ollama Cloud provider handling."""
+import httpx
+
+from src import llm_core
+
+
+def test_detects_ollama_cloud_native_provider():
+    assert llm_core._detect_provider("https://ollama.com/api") == "ollama"
+    assert llm_core._detect_provider("https://ollama.com/api/chat") == "ollama"
+
+
+def test_llm_call_posts_native_ollama_payload(monkeypatch):
+    seen = {}
+
+    def fake_post(url, headers=None, json=None, timeout=None):
+        seen["url"] = url
+        seen["headers"] = headers
+        seen["json"] = json
+        seen["timeout"] = timeout
+        request = httpx.Request("POST", url)
+        return httpx.Response(
+            200,
+            request=request,
+            json={"message": {"content": "OK"}, "done": True},
+        )
+
+    monkeypatch.setattr(llm_core.httpx, "post", fake_post)
+
+    result = llm_core.llm_call(
+        "https://ollama.com/api",
+        "gpt-oss:120b-test",
+        [{"role": "user", "content": "Say OK"}],
+        temperature=0.2,
+        max_tokens=7,
+        headers={"Authorization": "Bearer ollama-key"},
+        timeout=11,
+    )
+
+    assert result == "OK"
+    assert seen["url"] == "https://ollama.com/api/chat"
+    assert seen["headers"]["Authorization"] == "Bearer ollama-key"
+    assert seen["json"]["stream"] is False
+    assert seen["json"]["options"] == {"temperature": 0.2, "num_predict": 7}