feat(db): add auth_strategy constants and platform defaults

Co-authored-by: Cursor <cursoragent@cursor.com>

scripts/db/auth_strategy.py

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+# -*- coding: utf-8 -*-
+"""Auth strategy identifiers for accounts (v2 schema).
+
+Imported by migration, repositories, and later CLI/service layers.
+"""
+
+AUTH_STRATEGY_PASSWORD_AUTO = "password_auto"
+AUTH_STRATEGY_PASSWORD_WITH_CAPTCHA = "password_with_captcha"
+AUTH_STRATEGY_PASSWORD_PLUS_2FA = "password_plus_2fa"
+AUTH_STRATEGY_QR_CODE_MANUAL = "qr_code_manual"
+AUTH_STRATEGY_PER_SESSION_MANUAL = "per_session_manual"
+AUTH_STRATEGY_DEVICE_BOUND = "device_bound"
+AUTH_STRATEGY_CLIENT_CERTIFICATE = "client_certificate"
+AUTH_STRATEGY_API_TOKEN = "api_token"
+AUTH_STRATEGY_SSO_REDIRECT = "sso_redirect"
+
+ALL_AUTH_STRATEGIES = frozenset(
+    {
+        AUTH_STRATEGY_PASSWORD_AUTO,
+        AUTH_STRATEGY_PASSWORD_WITH_CAPTCHA,
+        AUTH_STRATEGY_PASSWORD_PLUS_2FA,
+        AUTH_STRATEGY_QR_CODE_MANUAL,
+        AUTH_STRATEGY_PER_SESSION_MANUAL,
+        AUTH_STRATEGY_DEVICE_BOUND,
+        AUTH_STRATEGY_CLIENT_CERTIFICATE,
+        AUTH_STRATEGY_API_TOKEN,
+        AUTH_STRATEGY_SSO_REDIRECT,
+    }
+)

scripts/db/platform_defaults.py

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+# -*- coding: utf-8 -*-
+"""平台默认 auth_strategy 映射表。
+
+只覆盖已知平台；其它平台需要时手工 UPDATE platforms SET default_auth_strategy=... WHERE platform_key=...
+"""
+
+PLATFORM_DEFAULT_AUTH_STRATEGY = {
+    # 物流仿真平台（monitor-competitor-rates 在用）
+    "maersk": "qr_code_manual",
+    "cosco": "qr_code_manual",
+    "msc": "qr_code_manual",
+    # 内容平台（典型扫码）
+    "douyin": "qr_code_manual",
+    "wechat_mp": "qr_code_manual",
+    "xiaohongshu": "qr_code_manual",
+    "bilibili": "qr_code_manual",
+    "toutiao": "qr_code_manual",
+    "sohu": "qr_code_manual",
+    # 开发平台（2FA 标配）
+    "github": "password_plus_2fa",
+    "aws": "password_plus_2fa",
+    "gcp": "password_plus_2fa",
+    # 内部演示/仿真（账密自动）
+    "icbc_sim": "password_auto",
+    # API 平台
+    "openai": "api_token",
+    "anthropic": "api_token",
+    "deepseek": "api_token",
+    "doubao": "api_token",
+}