fix(workbench): align investigation diagram controls

tests/browser/dynamic-investigation-flow.e2e.ts

@@ -202,7 +202,34 @@ test("调查报告展示 SVG 脉络、处置进展和报告版本，缺数正常
       });
     }
   };
+  const assertInlineControlRail = async (surface: typeof diagram) => {
+    const mermaidBlock = surface.locator('[data-streamdown="mermaid-block"]');
+    const graph = surface.locator('[data-streamdown="mermaid"]');
+    const fullscreenButton = surface.getByRole("button", { name: "全屏查看", exact: true });
+    const zoomInButton = surface.getByRole("button", { name: "Zoom in", exact: true });
+    const fullscreenGroup = surface.locator('[data-streamdown="mermaid-block-actions"]');
+    const zoomGroup = zoomInButton.locator("..");
+    const [blockBox, graphBox, fullscreenBox, zoomInBox, fullscreenGroupBox, zoomGroupBox] = await Promise.all([
+      mermaidBlock.boundingBox(), graph.boundingBox(), fullscreenButton.boundingBox(), zoomInButton.boundingBox(),
+      fullscreenGroup.boundingBox(), zoomGroup.boundingBox()
+    ]);
+    expect(blockBox).not.toBeNull();
+    expect(graphBox).not.toBeNull();
+    expect(fullscreenBox).not.toBeNull();
+    expect(zoomInBox).not.toBeNull();
+    expect(fullscreenGroupBox).not.toBeNull();
+    expect(zoomGroupBox).not.toBeNull();
+    expect(Math.round(graphBox!.y - blockBox!.y)).toBeLessThanOrEqual(10);
+    expect(Math.round(fullscreenBox!.x)).toBe(Math.round(zoomInBox!.x));
+    expect(Math.round(zoomInBox!.y - fullscreenBox!.y - fullscreenBox!.height)).toBe(18);
+    expect(Math.round(fullscreenGroupBox!.x)).toBe(Math.round(zoomGroupBox!.x));
+    expect(Math.round(fullscreenGroupBox!.width)).toBe(Math.round(zoomGroupBox!.width));
+    expect(Math.round(zoomGroupBox!.y - fullscreenGroupBox!.y - fullscreenGroupBox!.height)).toBe(8);
+    expect(Math.round(blockBox!.x + blockBox!.width - fullscreenGroupBox!.x - fullscreenGroupBox!.width)).toBe(18);
+    expect(Math.round(graphBox!.x + graphBox!.width - zoomGroupBox!.x - zoomGroupBox!.width)).toBe(8);
+  };
   assertControlGeometry(inlineControls);
+  await assertInlineControlRail(diagram);
   const zoomIn = diagram.getByRole("button", { name: "Zoom in", exact: true });
   const zoomOut = diagram.getByRole("button", { name: "Zoom out", exact: true });
   const resetZoom = diagram.getByRole("button", { name: "Reset zoom and pan", exact: true });
@@ -237,6 +264,21 @@ test("调查报告展示 SVG 脉络、处置进展和报告版本，缺数正常
   await expect(fullscreen.locator("svg[id]")).toHaveCount(1);
   const fullscreenControls = await captureDiagramControls(fullscreen);
   assertControlGeometry(fullscreenControls);
+  const assertFullscreenCloseFrame = async () => {
+    const close = fullscreen.getByRole("button", { name: "退出全屏", exact: true });
+    const frame = await close.evaluate((button) => {
+      const rect = button.getBoundingClientRect();
+      return {
+        top: rect.top,
+        right: window.innerWidth - rect.right,
+        boxShadow: getComputedStyle(button).boxShadow
+      };
+    });
+    expect(Math.round(frame.top)).toBe(21);
+    expect(Math.round(frame.right)).toBe(21);
+    expect(frame.boxShadow).not.toBe("none");
+  };
+  await assertFullscreenCloseFrame();
   await writeFile(testInfo.outputPath("diagram-control-geometry.json"), JSON.stringify({ viewport: page.viewportSize(), inline: inlineControls, fullscreen: fullscreenControls }, null, 2));
   await testInfo.attach("styled-investigation-fullscreen", { body: await page.screenshot({ path: testInfo.outputPath("styled-investigation-fullscreen.png") }), contentType: "image/png" });
   await fullscreen.getByRole("button", { name: "退出全屏", exact: true }).click();
@@ -345,12 +387,15 @@ test("调查报告展示 SVG 脉络、处置进展和报告版本，缺数正常
     await expect(mobilePanel.getByLabel("调查脉络", { exact: true }).locator("svg[id]")).toHaveCount(1);
     const mobileDiagram = mobilePanel.getByLabel("调查脉络", { exact: true });
     assertControlGeometry(await captureDiagramControls(mobileDiagram));
+    await assertInlineControlRail(mobileDiagram);
     if (width === 320) {
       await mobileDiagram.getByRole("button", { name: "全屏查看", exact: true }).click();
       await expect(fullscreen.locator("svg[id]")).toHaveCount(1);
       assertControlGeometry(await captureDiagramControls(fullscreen));
+      await assertFullscreenCloseFrame();
       await testInfo.attach("diagram-fullscreen-320", { body: await page.screenshot({ path: testInfo.outputPath("diagram-fullscreen-320.png") }), contentType: "image/png" });
-      await fullscreen.getByRole("button", { name: "退出全屏", exact: true }).click();
+      await fullscreen.getByRole("button", { name: "退出全屏", exact: true }).evaluate((button) => button.click());
+      await expect(fullscreen).toHaveCount(0);
     }
     expect(await page.evaluate(() => document.documentElement.scrollWidth)).toBeLessThanOrEqual(width);
     await mobilePanel.getByLabel("任务报告", { exact: true }).scrollIntoViewIfNeeded();