v0.2.7: 修复Redis连接 + 启动管理后台

- 修复Redis认证 (配置密码)
- 启动Python管理后台 (端口9531, 15个功能开关)
- 统一版本号 0.2.7
- 更新docker-compose.yml (镜像版本/Redis URL/Admin服务)

source_clean/src/admin/system-config.service.ts

@@ -0,0 +1,40 @@
+import { getDb } from '../database/database';
+import { localTimestamp } from '../utils/time';
+
+export interface SystemConfigEntry {
+  key: string;
+  value: string;
+  description?: string;
+  updated_at?: string;
+}
+
+export function getAllSystemConfigs(): SystemConfigEntry[] {
+  const db = getDb();
+  return db.prepare('SELECT key, value, description, updated_at FROM system_configs ORDER BY key').all() as SystemConfigEntry[];
+}
+
+export function getSystemConfig(key: string): string | null {
+  const db = getDb();
+  const row = db.prepare('SELECT value FROM system_configs WHERE key = ?').get(key) as { value: string } | undefined;
+  return row?.value ?? null;
+}
+
+export function updateSystemConfig(key: string, value: string): void {
+  const db = getDb();
+  db.prepare(
+    "UPDATE system_configs SET value = ?, updated_at = ? WHERE key = ?"
+  ).run(value, localTimestamp(), key);
+}
+
+export function updateSystemConfigs(entries: { key: string; value: string }[]): void {
+  const db = getDb();
+  const update = db.prepare(
+    "UPDATE system_configs SET value = ?, updated_at = ? WHERE key = ?"
+  );
+  const tx = db.transaction((items: { key: string; value: string }[]) => {
+    for (const item of items) {
+      update.run(item.value, localTimestamp(), item.key);
+    }
+  });
+  tx(entries);
+}