restructure: flatten workspace nesting, move devcontainer to root

- backend/workspaces/backend/ → backend/
- backend/workspaces/frontend/ → frontend/
- backend/.devcontainer/ + .vscode/ → repo root (where VS Code expects them)
- loose scripts/SQL files → scripts/
- replace nested git repo with single repo at project root
- update docker-compose.yml build context and devcontainer.json path
- add root .gitignore

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

frontend/src/routes/api/persons/+server.ts

@@ -0,0 +1,34 @@
+import { json } from '@sveltejs/kit';
+import type { RequestHandler } from './$types';
+
+export const GET: RequestHandler = async ({ url, fetch }) => {
+    // 1. Suchparameter aus der URL des Browsers holen
+    const q = url.searchParams.get('q') || '';
+
+    try {
+        // 3. Anfrage an das Java-Backend weiterleiten (Server-to-Server)
+        // Wir nutzen hier den internen Docker-Hostnamen oder localhost, je nach Netzwerk
+        const backendUrl = `http://localhost:8080/api/persons?q=${encodeURIComponent(q)}`;
+
+        const response = await fetch(backendUrl, {
+            method: 'GET',
+            headers: {
+                'Content-Type': 'application/json'
+            }
+        });
+
+        if (!response.ok) {
+            console.error(`Backend Error: ${response.status}`);
+            return json([], { status: response.status });
+        }
+
+        const data = await response.json();
+
+        // 4. Daten zurück an den Browser schicken
+        return json(data);
+
+    } catch (error) {
+        console.error("Proxy Error:", error);
+        return json([], { status: 500 });
+    }
+};

frontend/src/routes/api/tags/+server.ts

@@ -0,0 +1,35 @@
+import { json } from '@sveltejs/kit';
+import type { RequestHandler } from './$types';
+
+export const GET: RequestHandler = async ({ url, fetch }) => {
+    // 1. Suchparameter aus der URL des Browsers holen
+    const q = url.searchParams.get('q') || '';
+
+    try {
+        // 3. Anfrage an das Java-Backend weiterleiten (Server-to-Server)
+        // Wir nutzen hier den internen Docker-Hostnamen oder localhost, je nach Netzwerk
+        const backendUrl = `http://localhost:8080/api/tags?q=${encodeURIComponent(q)}`;
+
+        const response = await fetch(backendUrl, {
+            method: 'GET',
+            headers: {
+                'Content-Type': 'application/json'
+            }
+        });
+
+        if (!response.ok) {
+            console.error(`Backend Error: ${response.status}`);
+            return json([], { status: response.status });
+        }
+
+        const data = await response.json();
+        console.log("Tags Data", data)
+
+        // 4. Daten zurück an den Browser schicken
+        return json(data);
+
+    } catch (error) {
+        console.error("Proxy Error:", error);
+        return json([], { status: 500 });
+    }
+};