Build the current workspace snapshot on native CI runners

This branch snapshots the in-progress desktop workspace so GitHub-hosted Windows and Linux runners can package the same source tree that already passes local verification on macOS.

Constraint: Local Apple Silicon Docker/Wine packaging crashes before Windows artifacts are produced
Rejected: Publish from the incomplete base repo state | remote typecheck failed because current source additions were missing
Confidence: medium
Scope-risk: broad
Directive: Treat this branch as a build snapshot only; do not merge it without reviewing the unrelated workspace changes it contains
Tested: local typecheck, lint, workspace typecheck, unit tests, integration tests, e2e smoke, macOS signed release upload
Not-tested: Native Windows/Linux artifacts before this CI run

tests/unit/connector-models.test.ts

@@ -0,0 +1,55 @@
+import { describe, expect, it } from "vitest";
+import {
+  mergeConnectorModelEntries,
+  resolveSelectedConnectorModel,
+} from "@shared/connector-models";
+
+describe("connector model helpers", () => {
+  it("merges enabled and disabled models into one toggle list", () => {
+    const entries = mergeConnectorModelEntries(
+      [
+        { id: "gpt-5.4", label: "GPT-5.4" },
+        { id: "gpt-5.4-mini", label: "GPT-5.4 Mini" },
+      ],
+      [{ id: "o4-mini", label: "o4-mini" }],
+    );
+
+    expect(entries).toEqual([
+      { id: "gpt-5.4", label: "GPT-5.4", enabled: true },
+      { id: "gpt-5.4-mini", label: "GPT-5.4 Mini", enabled: true },
+      { id: "o4-mini", label: "o4-mini", enabled: false },
+    ]);
+  });
+
+  it("keeps the current selection only if it remains enabled", () => {
+    const entries = mergeConnectorModelEntries(
+      [{ id: "gpt-5.4", label: "GPT-5.4" }],
+      [{ id: "gpt-5.4-mini", label: "GPT-5.4 Mini" }],
+    );
+
+    expect(resolveSelectedConnectorModel(entries, "gpt-5.4")).toBe("gpt-5.4");
+    expect(resolveSelectedConnectorModel(entries, "gpt-5.4-mini")).toBe("gpt-5.4");
+    expect(resolveSelectedConnectorModel(entries, "")).toBe("gpt-5.4");
+  });
+
+  it("dedupes duplicate ids and keeps enabled entries ahead of disabled ones", () => {
+    const entries = mergeConnectorModelEntries(
+      [{ id: "gpt-5.4", label: "GPT-5.4" }],
+      [
+        { id: "gpt-5.4", label: "GPT-5.4" },
+        { id: "gpt-4.1", label: "GPT-4.1" },
+      ],
+    );
+
+    expect(entries).toEqual([
+      { id: "gpt-5.4", label: "GPT-5.4", enabled: true },
+      { id: "gpt-4.1", label: "GPT-4.1", enabled: false },
+    ]);
+  });
+
+  it("returns an empty selection when all entries are disabled", () => {
+    const entries = mergeConnectorModelEntries([], [{ id: "gpt-5.4", label: "GPT-5.4" }]);
+
+    expect(resolveSelectedConnectorModel(entries, "gpt-5.4")).toBe("");
+  });
+});