Migrate from webextension-toolbox to WXT

.gitignore

@@ -292,6 +292,8 @@ $RECYCLE.BIN/
 # Custom
 # ==================================================
 .idea
+.wxt/
+.output/
 dist/
 packages/
 storage/

entrypoints/background.ts

@@ -0,0 +1,56 @@
+export default defineBackground(() => {
+  const injectContentToTab = async (tab: chrome.tabs.Tab): Promise<void> => {
+    // Skip if URL is undefined
+    if (!tab.url) {
+      return;
+    }
+
+    // Skip if tab is discarded
+    if (tab.discarded) {
+      return;
+    }
+
+    // Skip if tab ID is undefined
+    if (tab.id === undefined) {
+      return;
+    }
+
+    // Skip if not a GitHub URL
+    if (!tab.url.startsWith('https://github.com/')) {
+      return;
+    }
+
+    try {
+      const manifest = chrome.runtime.getManifest();
+
+      // Inject CSS
+      if (manifest.content_scripts?.[0]?.css) {
+        await chrome.scripting.insertCSS({
+          target: { tabId: tab.id },
+          files: manifest.content_scripts[0].css,
+        });
+      }
+
+      // Inject JavaScript
+      if (manifest.content_scripts?.[0]?.js) {
+        await chrome.scripting.executeScript({
+          target: { tabId: tab.id },
+          files: manifest.content_scripts[0].js,
+        });
+      }
+    } catch (error) {
+      console.error('Error injecting content script:', error);
+    }
+  };
+
+  // Inject content scripts to existing GitHub tabs when extension is installed/updated
+  chrome.tabs.query({ url: 'https://github.com/*' }, async (tabs: chrome.tabs.Tab[]) => {
+    for (const tab of tabs) {
+      try {
+        await injectContentToTab(tab);
+      } catch (e) {
+        console.error(e);
+      }
+    }
+  });
+});