fix(ai): use current form config for connection tests

apps/desktop/src/lib/ai/__tests__/aiConnectionTest.spec.ts

@@ -0,0 +1,26 @@
+import { describe, expect, it } from "vitest";
+import type { AiConfig } from "@/types/ai";
+import { isAiConnectionTestConfigCurrent } from "../aiConnectionTest";
+
+function config(overrides: Partial<AiConfig> = {}): AiConfig {
+  return {
+    provider: "openai-compatible",
+    apiKey: "key",
+    authMethod: "bearer",
+    endpoint: "https://example.com/v1",
+    model: "model-a",
+    apiStyle: "completions",
+    ...overrides,
+  };
+}
+
+describe("AI connection test configuration", () => {
+  it("accepts a result only while the tested form values remain current", () => {
+    const tested = config();
+
+    expect(isAiConnectionTestConfigCurrent(tested, config())).toBe(true);
+    expect(isAiConnectionTestConfigCurrent(tested, config({ model: "model-b" }))).toBe(false);
+    expect(isAiConnectionTestConfigCurrent(tested, config({ endpoint: "https://other.example/v1" }))).toBe(false);
+    expect(isAiConnectionTestConfigCurrent(tested, config({ apiKey: "new-key" }))).toBe(false);
+  });
+});

apps/desktop/src/lib/ai/aiConnectionTest.ts

@@ -0,0 +1,5 @@
+import type { AiConfig } from "@/types/ai";
+
+export function isAiConnectionTestConfigCurrent(testedConfig: AiConfig, currentConfig: AiConfig): boolean {
+  return JSON.stringify(testedConfig) === JSON.stringify(currentConfig);
+}