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/persons/[id]/+page.server.ts

@@ -0,0 +1,27 @@
+import { error, } from '@sveltejs/kit';
+import { env } from '$env/dynamic/private';
+
+export async function load({ params, fetch }) {
+    const { id } = params;
+    
+
+    const baseUrl = env.API_INTERNAL_URL || 'http://localhost:8080';
+
+    try {
+        // Parallel Fetching: Person Infos + Ihre Dokumente
+        const [personRes, docsRes] = await Promise.all([
+            fetch(`${baseUrl}/api/persons/${id}`),
+            fetch(`${baseUrl}/api/persons/${id}/documents`)
+        ]);
+
+        if (personRes.status === 404) throw error(404, 'Person nicht gefunden');
+
+        return {
+            person: await personRes.json(),
+            documents: await docsRes.json()
+        };
+    } catch (e) {
+        if (e.status) throw e;
+        throw error(500, 'Ladefehler');
+    }
+}