feat: 添加MCP调试插件并优化流式超时处理

refactor(relay): 将Provider Key管理路由移至model_config模块
fix(saas): 修复demo_keys与provider_keys的匹配逻辑
perf(runtime): 将流式响应超时从60秒延长至180秒以适配思考型模型
docs: 新增模块化审计和上线前功能测试方案文档
chore: 添加tauri-plugin-mcp依赖及相关配置

crates/zclaw-saas/src/db.rs

@@ -896,7 +896,10 @@ async fn fix_seed_data(pool: &PgPool) -> SaasResult<()> {
             (format!("demo-akey-3-{}", &admin_id[..8]), "DeepSeek API Key", "sk-demo-deepseek-key-1-xxxxx", "[\"relay:use\"]"),
         ];
         for (idx, (id, label, key_val, perms)) in demo_keys.iter().enumerate() {
-            let provider_id = provider_keys.get(idx).map(|(_, pid)| pid.as_str()).unwrap_or("demo-openai");
+            let provider_id = match provider_keys.get(idx).map(|(_, pid)| pid.as_str()) {
+                Some(pid) => pid,
+                None => continue, // skip if no matching provider exists
+            };
             sqlx::query(
                 "INSERT INTO account_api_keys (id, account_id, provider_id, key_value, key_label, permissions, enabled, created_at, updated_at)
                  VALUES ($1, $2, $3, $4, $5, $6, true, $7, $7) ON CONFLICT (id) DO NOTHING"