fix(routing): fall through to compatible node when built-in alias has no credentials

tests/unit/model-routing.test.js

@@ -11,10 +11,12 @@ async function setupDb() {
   vi.resetModules();
 
   const { createProviderNode } = await import("@/models/index.js");
+  const { createProviderConnection } = await import("@/models/index.js");
   const { getModelInfo } = await import("@/sse/services/model.js");
 
   return {
     createProviderNode,
+    createProviderConnection,
     getModelInfo,
     cleanup() {
       fs.rmSync(tempDir, { recursive: true, force: true });
@@ -38,10 +40,18 @@ describe("model routing", () => {
     else process.env.DATA_DIR = originalDataDir;
   });
 
-  it("keeps built-in provider aliases ahead of compatible node prefixes", async () => {
+  it("keeps built-in provider aliases ahead of compatible node prefixes when built-in has credentials", async () => {
     const ctx = await setupDb();
     cleanup = ctx.cleanup;
 
+    await ctx.createProviderConnection({
+      provider: "cloudflare-ai",
+      authType: "apikey",
+      name: "CF Key",
+      apiKey: "cf-test-key",
+      isActive: true,
+    });
+
     await ctx.createProviderNode({
       id: "openai-compatible-chat-test",
       type: "openai-compatible",
@@ -58,6 +68,55 @@ describe("model routing", () => {
       });
   });
 
+  it("routes reserved alias prefix to compatible node when built-in has no credentials", async () => {
+    const ctx = await setupDb();
+    cleanup = ctx.cleanup;
+
+    await ctx.createProviderNode({
+      id: "openai-compatible-chat-test",
+      type: "openai-compatible",
+      name: "Compatible TR Collision",
+      prefix: "tr",
+      apiType: "chat",
+      baseUrl: "https://api.tokenrouter.com/v1",
+    });
+
+    // No tokenrouter connection → custom node wins instead of 404.
+    await expect(ctx.getModelInfo("tr/qwen/qwen3.8-max-free"))
+      .resolves.toEqual({
+        provider: "openai-compatible-chat-test",
+        model: "qwen/qwen3.8-max-free",
+      });
+  });
+
+  it("keeps built-in route when both built-in credentials and reserved-prefix compatible node exist", async () => {
+    const ctx = await setupDb();
+    cleanup = ctx.cleanup;
+
+    await ctx.createProviderConnection({
+      provider: "tokenrouter",
+      authType: "apikey",
+      name: "TR Key",
+      apiKey: "tr-test-key",
+      isActive: true,
+    });
+
+    await ctx.createProviderNode({
+      id: "openai-compatible-chat-test",
+      type: "openai-compatible",
+      name: "Compatible TR Collision",
+      prefix: "tr",
+      apiType: "chat",
+      baseUrl: "https://api.tokenrouter.com/v1",
+    });
+
+    await expect(ctx.getModelInfo("tr/qwen/qwen3.8-max-free"))
+      .resolves.toEqual({
+        provider: "tokenrouter",
+        model: "qwen/qwen3.8-max-free",
+      });
+  });
+
   it("still routes non-reserved compatible node prefixes", async () => {
     const ctx = await setupDb();
     cleanup = ctx.cleanup;

tests/unit/xai-video-handler.test.js

@@ -32,6 +32,7 @@ vi.mock("@/lib/localDb", () => ({
   getComboByName: vi.fn(async () => null),
   getModelAliases: vi.fn(async () => ({})),
   getProviderNodes: vi.fn(async () => []),
+  getProviderConnections: vi.fn(async () => []),
 }));
 vi.mock("@/sse/utils/logger.js", () => ({ info: vi.fn(), warn: vi.fn(), error: vi.fn(), debug: vi.fn() }));