test(api): add failing model profile registry specs

apps/api/package.json

@@ -2,5 +2,12 @@
   "name": "@aiquant/api",
   "version": "0.0.0",
   "private": true,
-  "type": "module"
+  "type": "module",
+  "scripts": {
+    "test": "vitest run --"
+  },
+  "devDependencies": {
+    "typescript": "^5.9.2",
+    "vitest": "^2.1.9"
+  }
 }

apps/api/src/config/config.test.ts

@@ -0,0 +1,72 @@
+import { describe, expect, it } from "vitest";
+import { createConfigFromEnv, createModelProfileRegistry } from "./model-profile-registry";
+
+describe("model profile registry", () => {
+  const env = {
+    MODEL_PROFILES_JSON: JSON.stringify([
+      {
+        name: "signal.fast.v1",
+        provider: "openai-compatible",
+        apiBase: "https://example.com/v1",
+        apiKeyRef: "OPENAI_API_KEY",
+        model: "gpt-4.1-mini",
+        temperature: 0.2,
+        timeoutMs: 10_000,
+        capabilities: {
+          structuredOutputs: true,
+          jsonMode: true
+        },
+        tags: ["fast"]
+      },
+      {
+        name: "optimizer.reasoning.v1",
+        provider: "openai-compatible",
+        apiBase: "https://example.com/v1",
+        apiKeyRef: "OPENAI_API_KEY",
+        model: "o4-mini",
+        temperature: 0.6,
+        timeoutMs: 20_000,
+        capabilities: {
+          structuredOutputs: true,
+          jsonMode: true
+        },
+        tags: ["reasoning"]
+      }
+    ]),
+    AGENT_MODEL_BINDINGS_JSON: JSON.stringify({
+      signal: "signal.fast.v1",
+      risk: "signal.fast.v1",
+      evaluator: "optimizer.reasoning.v1",
+      optimizer: "optimizer.reasoning.v1"
+    })
+  };
+
+  it("loads model profiles from environment-backed config", () => {
+    const config = createConfigFromEnv(env);
+
+    expect(config.modelProfiles).toHaveLength(2);
+    expect(config.agentBindings.optimizer).toBe("optimizer.reasoning.v1");
+  });
+
+  it("resolves agent bindings to concrete profiles", () => {
+    const config = createConfigFromEnv(env);
+    const registry = createModelProfileRegistry(config);
+
+    expect(registry.get("signal.fast.v1").model).toBe("gpt-4.1-mini");
+    expect(registry.resolveAgentBinding("optimizer").model).toBe("o4-mini");
+  });
+
+  it("rejects bindings to unknown profiles", () => {
+    expect(() =>
+      createModelProfileRegistry({
+        modelProfiles: createConfigFromEnv(env).modelProfiles,
+        agentBindings: {
+          signal: "signal.fast.v1",
+          risk: "signal.fast.v1",
+          evaluator: "signal.fast.v1",
+          optimizer: "missing-profile"
+        }
+      })
+    ).toThrow(/Unknown model profile/);
+  });
+});