[AI-assisted] test: fix typing and test fixture issues (#31444)

* test: fix typing and test fixture issues

* Fix type-test harness issues from session routing and mock typing

* Add routing regression test for session.mainKey precedence

src/agents/models-config.fills-missing-provider-apikey-from-env-var.test.ts

@@ -2,7 +2,6 @@ import fs from "node:fs/promises";
 import path from "node:path";
 import { describe, expect, it } from "vitest";
 import type { OpenClawConfig } from "../config/config.js";
-import type { ModelProviderConfig } from "../config/types.models.js";
 import { validateConfigObject } from "../config/validation.js";
 import { resolveOpenClawAgentDir } from "./agent-paths.js";
 import {
@@ -42,15 +41,15 @@ async function writeAgentModelsJson(content: unknown): Promise<void> {
 }
 
 function createMergeConfigProvider() {
-  const provider: ModelProviderConfig = {
+  return {
     baseUrl: "https://config.example/v1",
     apiKey: "CONFIG_KEY",
-    api: "openai-responses",
+    api: "openai-responses" as const,
     models: [
       {
         id: "config-model",
         name: "Config model",
-        input: ["text"],
+        input: ["text"] as Array<"text" | "image">,
         reasoning: false,
         cost: { input: 0, output: 0, cacheRead: 0, cacheWrite: 0 },
         contextWindow: 8192,
@@ -58,7 +57,6 @@ function createMergeConfigProvider() {
       },
     ],
   };
-  return provider;
 }
 
 async function runCustomProviderMergeTest(seedProvider: {

src/agents/tools/sessions-resolution.test.ts

@@ -31,6 +31,19 @@ describe("resolveMainSessionAlias", () => {
       scope: "per-sender",
     });
   });
+
+  it("uses session.mainKey over any legacy routing sessions key", () => {
+    const cfg = {
+      session: { mainKey: "  work ", scope: "per-sender" },
+      routing: { sessions: { mainKey: "legacy-main" } },
+    } as OpenClawConfig;
+
+    expect(resolveMainSessionAlias(cfg)).toEqual({
+      mainKey: "work",
+      alias: "work",
+      scope: "per-sender",
+    });
+  });
 });
 
 describe("session key display/internal mapping", () => {