Add OpenCode provider integration and strict model selection

server/src/__tests__/adapter-models.test.ts

@@ -1,12 +1,15 @@
 import { beforeEach, describe, expect, it, vi } from "vitest";
 import { models as codexFallbackModels } from "@paperclipai/adapter-codex-local";
+import { resetOpenCodeModelsCacheForTests } from "@paperclipai/adapter-opencode-local/server";
 import { listAdapterModels } from "../adapters/index.js";
 import { resetCodexModelsCacheForTests } from "../adapters/codex-models.js";
 
 describe("adapter model listing", () => {
   beforeEach(() => {
     delete process.env.OPENAI_API_KEY;
+    delete process.env.PAPERCLIP_OPENCODE_COMMAND;
     resetCodexModelsCacheForTests();
+    resetOpenCodeModelsCacheForTests();
     vi.restoreAllMocks();
   });
 
@@ -55,4 +58,11 @@ describe("adapter model listing", () => {
     const models = await listAdapterModels("codex_local");
     expect(models).toEqual(codexFallbackModels);
   });
+
+  it("returns no opencode models when opencode command is unavailable", async () => {
+    process.env.PAPERCLIP_OPENCODE_COMMAND = "__paperclip_missing_opencode_command__";
+
+    const models = await listAdapterModels("opencode_local");
+    expect(models).toEqual([]);
+  });
 });