feat(fase2): wire local + Foundry profiles + model-map + env template

tests/test_backends.py

@@ -1,6 +1,7 @@
-"""Tests for the backend profile skeleton (D2)."""
+"""Tests for the backend profiles (D2) — now wired (Fase 2), no longer skeletons."""
 
 import pytest
+from agent_framework import BaseChatClient
 
 from portfolio_optimiser.backends import (
     AzureFoundryBackend,
@@ -8,6 +9,7 @@ from portfolio_optimiser.backends import (
     LocalBackend,
     Profile,
     get_backend,
+    resolve_model,
 )
 
 
@@ -32,8 +34,21 @@ def test_unknown_profile_fails_fast() -> None:
         get_backend("on-prem")
 
 
-@pytest.mark.parametrize("profile", ["azure", "local"])
-def test_create_chat_client_is_skeleton(profile: str) -> None:
-    # Fase 0: the seam is defined but not wired — must fail loudly, not silently.
-    with pytest.raises(NotImplementedError):
-        get_backend(profile).create_chat_client(model="dummy-model")
+def test_local_backend_returns_client_no_network(monkeypatch: pytest.MonkeyPatch) -> None:
+    # Construction is offline (no network); the default base_url is loopback.
+    monkeypatch.delenv("PORTFOLIO_LOCAL_BASE_URL", raising=False)
+    client = get_backend("local").create_chat_client(model="qwen3:4b")
+    assert isinstance(client, BaseChatClient)
+
+
+def test_azure_backend_fails_fast_without_endpoint(monkeypatch: pytest.MonkeyPatch) -> None:
+    # Fail-fast (no silent default endpoint) — the operator must supply the Foundry endpoint.
+    monkeypatch.delenv("PORTFOLIO_FOUNDRY_PROJECT_ENDPOINT", raising=False)
+    with pytest.raises(ValueError):
+        get_backend("azure").create_chat_client(model="dummy-deployment")
+
+
+def test_model_map_resolves_role_to_model() -> None:
+    assert resolve_model("local", "proposer") == "qwen3:4b"
+    # Unknown role falls back to the profile default (still a non-empty id).
+    assert resolve_model(Profile.LOCAL, "no-such-role")