style: switch from tab to space indentation in frontend and worker/php

Update biome.json indentStyle from "tab" to "space" and reformat all
files in both workspaces.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

1 files changed, 47 insertions, 47 deletions

diff --git a/frontend/app/components/UserIcon.test.tsx b/frontend/app/components/UserIcon.test.tsx
index 964aae1..5311234 100644
--- a/frontend/app/components/UserIcon.test.tsx
+++ b/frontend/app/components/UserIcon.test.tsx
@@ -6,57 +6,57 @@ import { afterEach, describe, expect, test } from "vitest";
 import UserIcon from "./UserIcon";
 
 afterEach(() => {
-	cleanup();
+  cleanup();
 });
 
 describe("UserIcon", () => {
-	test("renders an img element", () => {
-		render(
-			<UserIcon
-				iconPath="icons/test.png"
-				displayName="TestUser"
-				className="w-16 h-16"
-			/>,
-		);
-		const img = screen.getByAltText("TestUser のアイコン");
-		expect(img.tagName).toBe("IMG");
-	});
+  test("renders an img element", () => {
+    render(
+      <UserIcon
+        iconPath="icons/test.png"
+        displayName="TestUser"
+        className="w-16 h-16"
+      />,
+    );
+    const img = screen.getByAltText("TestUser のアイコン");
+    expect(img.tagName).toBe("IMG");
+  });
 
-	test("sets alt text with display name", () => {
-		render(
-			<UserIcon
-				iconPath="icons/test.png"
-				displayName="Alice"
-				className="w-16 h-16"
-			/>,
-		);
-		expect(screen.getByAltText("Alice のアイコン")).toBeDefined();
-	});
+  test("sets alt text with display name", () => {
+    render(
+      <UserIcon
+        iconPath="icons/test.png"
+        displayName="Alice"
+        className="w-16 h-16"
+      />,
+    );
+    expect(screen.getByAltText("Alice のアイコン")).toBeDefined();
+  });
 
-	test("applies rounded-full and border classes", () => {
-		render(
-			<UserIcon
-				iconPath="icons/test.png"
-				displayName="Bob"
-				className="w-16 h-16"
-			/>,
-		);
-		const img = screen.getByAltText("Bob のアイコン");
-		expect(img.className).toContain("rounded-full");
-		expect(img.className).toContain("border-4");
-		expect(img.className).toContain("border-white");
-	});
+  test("applies rounded-full and border classes", () => {
+    render(
+      <UserIcon
+        iconPath="icons/test.png"
+        displayName="Bob"
+        className="w-16 h-16"
+      />,
+    );
+    const img = screen.getByAltText("Bob のアイコン");
+    expect(img.className).toContain("rounded-full");
+    expect(img.className).toContain("border-4");
+    expect(img.className).toContain("border-white");
+  });
 
-	test("applies custom className", () => {
-		render(
-			<UserIcon
-				iconPath="icons/test.png"
-				displayName="Bob"
-				className="w-48 h-48"
-			/>,
-		);
-		const img = screen.getByAltText("Bob のアイコン");
-		expect(img.className).toContain("w-48");
-		expect(img.className).toContain("h-48");
-	});
+  test("applies custom className", () => {
+    render(
+      <UserIcon
+        iconPath="icons/test.png"
+        displayName="Bob"
+        className="w-48 h-48"
+      />,
+    );
+    const img = screen.getByAltText("Bob のアイコン");
+    expect(img.className).toContain("w-48");
+    expect(img.className).toContain("h-48");
+  });
 });