feat: implement DB-driven architecture with SQLite persistence and file-generator compilation service

src/db/index.ts

@@ -0,0 +1,132 @@
+import { DatabaseSync } from 'node:sqlite';
+import path from 'node:path';
+import fs from 'node:fs';
+
+const DATA_DIR = process.env.DATA_DIR || path.join(process.cwd(), 'app', 'data');
+const DB_PATH = path.join(DATA_DIR, 'waas.db');
+
+let dbInstance: DatabaseSync | null = null;
+
+export function getDb(): DatabaseSync {
+  if (dbInstance) return dbInstance;
+
+  if (!fs.existsSync(DATA_DIR)) {
+    fs.mkdirSync(DATA_DIR, { recursive: true });
+  }
+
+  dbInstance = new DatabaseSync(DB_PATH);
+  initSchema(dbInstance);
+  return dbInstance;
+}
+
+function initSchema(db: DatabaseSync) {
+  // 1. site_settings
+  db.exec(`
+    CREATE TABLE IF NOT EXISTS site_settings (
+      key TEXT PRIMARY KEY,
+      value_json TEXT NOT NULL,
+      updated_at TEXT NOT NULL
+    );
+  `);
+
+  // 2. pages
+  db.exec(`
+    CREATE TABLE IF NOT EXISTS pages (
+      id TEXT PRIMARY KEY,
+      slug TEXT NOT NULL UNIQUE,
+      title TEXT NOT NULL,
+      status TEXT NOT NULL DEFAULT 'published',
+      homepage_id TEXT,
+      created_at TEXT NOT NULL,
+      updated_at TEXT NOT NULL
+    );
+  `);
+
+  // 3. page_sections
+  db.exec(`
+    CREATE TABLE IF NOT EXISTS page_sections (
+      id TEXT PRIMARY KEY,
+      page_id TEXT NOT NULL,
+      section_type TEXT NOT NULL,
+      order_index INTEGER NOT NULL DEFAULT 0,
+      content_draft_json TEXT NOT NULL,
+      content_published_json TEXT NOT NULL,
+      styles_json TEXT,
+      FOREIGN KEY (page_id) REFERENCES pages (id) ON DELETE CASCADE
+    );
+  `);
+
+  // Initial Seeding falls DB leer
+  seedInitialData(db);
+}
+
+function seedInitialData(db: DatabaseSync) {
+  const checkPages = db.prepare('SELECT COUNT(*) as count FROM pages').get() as { count: number };
+  if (checkPages.count > 0) return;
+
+  const now = new Date().toISOString();
+
+  // Seed site_settings
+  const initialSettings = {
+    siteName: 'N&D IT Solutions',
+    metaDescription: 'High-Performance Webdesign & Digital Solutions - 100% DSGVO-konform.',
+    is_demo_mode: false,
+    header: {
+      brandName: 'N&D',
+      brandHighlight: 'i-t SOLUTIONS',
+      ctaText: 'Erstgespräch buchen',
+      ctaLink: '#contact',
+      showThemeToggle: true,
+      glassEffect: true
+    },
+    footer: {
+      brandDescription: 'Ihr Partner für professionelles Webdesign, Website-Entwicklung und lokale SEO.',
+      copyrightText: 'N&D i-t SOLUTIONS. Alle Rechte vorbehalten.',
+      showLegalLinks: true
+    },
+    site_info: {
+      title: 'N&D IT Solutions',
+      homepage_id: 'page_home'
+    }
+  };
+
+  db.prepare('INSERT INTO site_settings (key, value_json, updated_at) VALUES (?, ?, ?)').run(
+    'site_config',
+    JSON.stringify(initialSettings),
+    now
+  );
+
+  // Seed default pages & sections
+  db.prepare('INSERT INTO pages (id, slug, title, status, homepage_id, created_at, updated_at) VALUES (?, ?, ?, ?, ?, ?, ?)').run(
+    'page_home',
+    '/',
+    'Startseite (Hauptseite)',
+    'published',
+    'page_home',
+    now,
+    now
+  );
+
+  const heroDraft = JSON.stringify({
+    title: 'Maßgeschneiderte Webseiten. Digital im Griff.',
+    subtitle: 'Wir entwickeln blitzschnelle, DSGVO-konforme High-End Webseiten für Ihr Unternehmen.',
+    ctaPrimaryText: 'Projekt anfragen',
+    ctaPrimaryLink: '#contact'
+  });
+
+  const bentoDraft = JSON.stringify({
+    sectionTitle: 'High-End Features & Leistung',
+    sectionSubtitle: 'Modernste Technologie & Höchster Datenschutz vereint.'
+  });
+
+  const contactDraft = JSON.stringify({
+    title: 'Bereit für Ihr Projekt?',
+    subtitle: 'Schreiben Sie uns direkt. Wir antworten innerhalb von 24 Stunden persönlich.'
+  });
+
+  const stmt = db.prepare('INSERT INTO page_sections (id, page_id, section_type, order_index, content_draft_json, content_published_json, styles_json) VALUES (?, ?, ?, ?, ?, ?, ?)');
+  
+  stmt.run('sec_hero_1', 'page_home', 'HeroSection', 0, heroDraft, heroDraft, JSON.stringify({ bg_color: '#0b0f19' }));
+  stmt.run('sec_bento_1', 'page_home', 'BentoGrid', 1, bentoDraft, bentoDraft, JSON.stringify({}));
+  stmt.run('sec_contact_1', 'page_home', 'ContactSection', 2, contactDraft, contactDraft, JSON.stringify({}));
+}