Update subproject commit to indicate a dirty state

Extension/content-script.js

@@ -0,0 +1,70 @@
+// Content Script läuft auf der Web-App-Seite
+// Lauscht auf window.postMessage von der Web-App und leitet an Background weiter
+
+const MESSAGE_SOURCE = "eship-webapp";
+
+// Markiere Extension als verfügbar
+// #region agent log
+try {
+  console.log('[ESHIP-CONTENT] Content script loaded');
+  if (typeof window !== 'undefined') {
+    window.__EBAY_EXTENSION__ = true;
+    console.log('[ESHIP-CONTENT] window.__EBAY_EXTENSION__ set to true');
+  } else {
+    console.error('[ESHIP-CONTENT] window is undefined!');
+  }
+} catch (e) {
+  console.error('[ESHIP-CONTENT] Error setting flag:', e);
+}
+// #endregion
+
+window.addEventListener("message", (event) => {
+  // Sicherheitscheck: Nur Nachrichten von derselben Origin akzeptieren
+  if (event.data?.source !== MESSAGE_SOURCE) return;
+
+  // Auth Messages (JWT)
+  if (event.data.type === "AUTH_JWT" || event.data.type === "AUTH_CLEARED") {
+    chrome.runtime.sendMessage(
+      {
+        type: event.data.type,
+        jwt: event.data.jwt,
+      },
+      (response) => {
+        // Antwort zurück an Web-App senden
+        window.postMessage(
+          {
+            source: "eship-extension",
+            type: event.data.type,
+            response: response,
+          },
+          "*"
+        );
+      }
+    );
+    return;
+  }
+
+  // eBay Parsing Request (PARSE_URL)
+  if (event.data.action === "PARSE_URL" && event.data.url) {
+    chrome.runtime.sendMessage(
+      {
+        action: "PARSE_URL",
+        url: event.data.url,
+      },
+      (response) => {
+        // Antwort zurück an Web-App senden
+        window.postMessage(
+          {
+            source: "eship-extension",
+            messageId: event.data.messageId,
+            ok: response?.ok,
+            data: response?.data,
+            error: response?.error,
+          },
+          "*"
+        );
+      }
+    );
+    return;
+  }
+});