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, 1 insertions, 1 deletions

diff --git a/worker/php/vitest.config.mjs b/worker/php/vitest.config.mjs
index def6022..77a73cf 100644
--- a/worker/php/vitest.config.mjs
+++ b/worker/php/vitest.config.mjs
@@ -1,5 +1,5 @@
 import { defineConfig } from "vitest/config";
 
 export default defineConfig({
-	test: {},
+  test: {},
 });