fix(agents): include filenames in image resize logs

src/agents/tool-images.log.test.ts

@@ -0,0 +1,66 @@
+import sharp from "sharp";
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+const { infoMock, warnMock } = vi.hoisted(() => ({
+  infoMock: vi.fn(),
+  warnMock: vi.fn(),
+}));
+
+vi.mock("../logging/subsystem.js", () => {
+  const makeLogger = () => ({
+    subsystem: "agents/tool-images",
+    isEnabled: () => true,
+    trace: vi.fn(),
+    debug: vi.fn(),
+    info: infoMock,
+    warn: warnMock,
+    error: vi.fn(),
+    fatal: vi.fn(),
+    raw: vi.fn(),
+    child: () => makeLogger(),
+  });
+  return { createSubsystemLogger: () => makeLogger() };
+});
+
+import { sanitizeContentBlocksImages } from "./tool-images.js";
+
+async function createLargePng(): Promise<Buffer> {
+  const width = 2400;
+  const height = 680;
+  const raw = Buffer.alloc(width * height * 3, 0x7f);
+  return await sharp(raw, {
+    raw: { width, height, channels: 3 },
+  })
+    .png({ compressionLevel: 0 })
+    .toBuffer();
+}
+
+describe("tool-images log context", () => {
+  beforeEach(() => {
+    infoMock.mockClear();
+    warnMock.mockClear();
+  });
+
+  it("includes filename from MEDIA text", async () => {
+    const png = await createLargePng();
+    const blocks = [
+      { type: "text" as const, text: "MEDIA:/tmp/snapshots/camera-front.png" },
+      { type: "image" as const, data: png.toString("base64"), mimeType: "image/png" },
+    ];
+    await sanitizeContentBlocksImages(blocks, "nodes:camera_snap");
+    const message = infoMock.mock.calls[0]?.[0];
+    expect(typeof message).toBe("string");
+    expect(String(message)).toContain("camera-front.png");
+  });
+
+  it("includes filename from read label", async () => {
+    const png = await createLargePng();
+    const blocks = [
+      { type: "image" as const, data: png.toString("base64"), mimeType: "image/png" },
+    ];
+    await sanitizeContentBlocksImages(blocks, "read:/tmp/images/sample-diagram.png");
+    const message = infoMock.mock.calls[0]?.[0];
+    expect(typeof message).toBe("string");
+    expect(String(message)).toContain("sample-diagram.png");
+  });
+});