架构重构：拆分 core/ops/DBManager，统一 SQLite 锁，DEB 改进，新增注意力模型

- web/core.py 858→236行，拆出 schemas/middleware/auth/diagnostics
- ops_api.py 2876→4个 domain 模块 (users/payments/health/config)
- DBManager Supabase HTTP 调用提取到 SupabaseAdminClient
- 新增 LockedSQLiteConnection 统一多进程读写锁
- 新增 WeatherCacheManager 替代 12 个独立缓存字典
- METAR 缓存迁移至统一缓存管理器
- analysis_service 提取 _build_intraday_meteorology 到独立模块
- DEB 改进：偏差惩罚、分歧回退、自适应 lookback (MAE ↓12.6%)
- 新增 PyTorch 注意力模型 deb_attention.py (数据积累后启用)
- 新增 torch 到 requirements.lock

CLAUDE.md

@@ -6,7 +6,7 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
 
 PolyWeather Pro — a paid institutional weather-intelligence terminal. 50 monitored cities with real-time METAR/AMOS/MADIS observations, DEB multi-model temperature blending, Mu probability calibration, and intraday bias correction. Pure meteorological decision workspace; no market/price layer. Next.js 15 + React 19 frontend (Docker / VPS, behind Cloudflare + Nginx), FastAPI backend (VPS), Telegram bot.
 
-**Business model**: Paid-only, $10/month, no free tier, no trial. Landing page is public; `/terminal` requires login + active subscription.
+**Business model**: Paid-only, 29.9 USDC/month or 79.9 USDC/quarter, referral first month 20 USDC. New users get a one-time 3-day trial. Landing page is public; `/terminal` requires login + active subscription.
 
 ## Environment & Preferences