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, 18 insertions, 18 deletions

diff --git a/frontend/app/highlight.ts b/frontend/app/highlight.ts
index ccf0683..9d76850 100644
--- a/frontend/app/highlight.ts
+++ b/frontend/app/highlight.ts
@@ -7,23 +7,23 @@ export type { BundledLanguage };
 
 // https://shiki.matsu.io/packages/next
 export async function highlight(code: string, lang: BundledLanguage) {
-	let out;
-	try {
-		out = await codeToHast(code.trimEnd(), {
-			lang,
-			theme: "github-light",
-		});
-	} catch {
-		// Fallback to plaintext (no highlight).
-		out = await codeToHast(code.trimEnd(), {
-			lang: "text",
-			theme: "github-light",
-		});
-	}
+  let out;
+  try {
+    out = await codeToHast(code.trimEnd(), {
+      lang,
+      theme: "github-light",
+    });
+  } catch {
+    // Fallback to plaintext (no highlight).
+    out = await codeToHast(code.trimEnd(), {
+      lang: "text",
+      theme: "github-light",
+    });
+  }
 
-	return toJsxRuntime(out, {
-		Fragment,
-		jsx,
-		jsxs,
-	}) as JSX.Element;
+  return toJsxRuntime(out, {
+    Fragment,
+    jsx,
+    jsxs,
+  }) as JSX.Element;
 }