Merge remote-tracking branch 'origin/master' into gitea/feature/end

Resolved conflicts taking origin/master (v0.5.55) as canonical, with local
features re-applied:
- runtime log level (LOG_LEVEL env + dashboard Settings → Logging, applied
  immediately and persisted across restarts)
- free/noAuth provider enable/disable toggle via providerStrategies.enabled
- parallel model testing (Test All Models / Test Selected Keys)

tests/unit/cli-build-artifacts.test.js

@@ -0,0 +1,141 @@
+import assert from "node:assert/strict";
+import { createRequire } from "node:module";
+import fs from "node:fs";
+import os from "node:os";
+import path from "node:path";
+
+let testApi;
+try {
+  testApi = await import("vitest");
+} catch (error) {
+  if (error.code !== "ERR_MODULE_NOT_FOUND") throw error;
+  testApi = await import("node:test");
+}
+const { afterEach, describe, it } = testApi;
+
+const require = createRequire(import.meta.url);
+const {
+  assertRequiredApiArtifacts,
+  copyStandaloneBuild,
+  mergeServerArtifacts,
+} = require("../../cli/scripts/build-cli.js");
+
+const tempDirs = [];
+
+function createTempDir() {
+  const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), "9router-cli-build-"));
+  tempDirs.push(tempDir);
+  return tempDir;
+}
+
+function writeFixture(root, relativePath, contents = relativePath) {
+  const filePath = path.join(root, relativePath);
+  fs.mkdirSync(path.dirname(filePath), { recursive: true });
+  fs.writeFileSync(filePath, contents);
+  return filePath;
+}
+
+function createCompleteServer(buildDistDir) {
+  const serverDir = path.join(buildDistDir, "server");
+  writeFixture(serverDir, "app/api/v1/chat/completions/route.js", "chat route");
+  writeFixture(serverDir, "app/api/v1/messages/route.js", "messages route");
+  writeFixture(serverDir, "chunks/openai-provider.js", "openai chunk");
+  writeFixture(serverDir, "chunks/anthropic-provider.js", "anthropic chunk");
+  return serverDir;
+}
+
+afterEach(() => {
+  for (const tempDir of tempDirs.splice(0)) {
+    fs.rmSync(tempDir, { recursive: true, force: true });
+  }
+});
+
+describe("CLI build server artifacts", () => {
+  for (const { name, standalonePath } of [
+    {
+      name: "legacy nested app",
+      standalonePath: (appDir, buildDistDir) => path.join(appDir, ".next", "standalone", "app"),
+    },
+    {
+      name: "Next 16 workspace",
+      standalonePath: (appDir, buildDistDir) => path.join(buildDistDir, "standalone", path.basename(appDir)),
+    },
+  ]) {
+    it(`merges complete API routes and provider chunks for the ${name} layout`, () => {
+      const root = createTempDir();
+      const appDir = path.join(root, "9router");
+      const buildDistDir = path.join(appDir, ".next-cli-build");
+      const cliAppDir = path.join(root, "cli-app");
+      const standaloneDir = standalonePath(appDir, buildDistDir);
+
+      writeFixture(standaloneDir, "server.js", "standalone server");
+      writeFixture(
+        standaloneDir,
+        ".next-cli-build/server/app/api/v1/chat/completions/route.js",
+        "standalone chat route",
+      );
+      createCompleteServer(buildDistDir);
+
+      copyStandaloneBuild(appDir, buildDistDir, cliAppDir);
+      mergeServerArtifacts(buildDistDir, cliAppDir);
+      assertRequiredApiArtifacts(cliAppDir);
+
+      const packagedServer = path.join(cliAppDir, ".next-cli-build", "server");
+      assert.equal(
+        fs.readFileSync(path.join(packagedServer, "app/api/v1/messages/route.js"), "utf8"),
+        "messages route",
+      );
+      assert.equal(
+        fs.readFileSync(path.join(packagedServer, "chunks/openai-provider.js"), "utf8"),
+        "openai chunk",
+      );
+      assert.equal(
+        fs.readFileSync(path.join(packagedServer, "chunks/anthropic-provider.js"), "utf8"),
+        "anthropic chunk",
+      );
+    });
+  }
+
+  it("merges idempotently without removing standalone-generated files", () => {
+    const root = createTempDir();
+    const buildDistDir = path.join(root, ".next-cli-build");
+    const cliAppDir = path.join(root, "cli-app");
+    const packagedServer = path.join(cliAppDir, ".next-cli-build", "server");
+
+    createCompleteServer(buildDistDir);
+    writeFixture(packagedServer, "standalone-only.js", "keep me");
+
+    mergeServerArtifacts(buildDistDir, cliAppDir);
+    mergeServerArtifacts(buildDistDir, cliAppDir);
+
+    assert.equal(
+      fs.readFileSync(path.join(packagedServer, "standalone-only.js"), "utf8"),
+      "keep me",
+    );
+    assert.equal(
+      fs.readFileSync(path.join(packagedServer, "app/api/v1/messages/route.js"), "utf8"),
+      "messages route",
+    );
+  });
+
+  it("reports the missing required API route artifact path", () => {
+    const root = createTempDir();
+    const buildDistDir = path.join(root, ".next-cli-build");
+    const cliAppDir = path.join(root, "cli-app");
+
+    writeFixture(
+      path.join(buildDistDir, "server"),
+      "app/api/v1/chat/completions/route.js",
+      "chat route",
+    );
+    mergeServerArtifacts(buildDistDir, cliAppDir);
+
+    assert.throws(
+      () => assertRequiredApiArtifacts(cliAppDir),
+      (error) => error.message.includes(path.join(
+        cliAppDir,
+        ".next-cli-build/server/app/api/v1/messages/route.js",
+      )),
+    );
+  });
+});