收口微信领域能力

将 api-server 微信 HTTP/BFF 适配统一迁移到 wechat 目录。

将微信支付和虚拟支付消息协议细节下沉到 platform-wechat。

拆分 platform-wechat 的订阅消息与支付模块并补齐依赖。

修正微信相关测试的用户 ID 夹具并同步后端架构文档。

server-rs/crates/platform-wechat/Cargo.toml

@@ -5,8 +5,18 @@ version.workspace = true
 license.workspace = true
 
 [dependencies]
+aes = { workspace = true }
+base64 = { workspace = true }
+cbc = { workspace = true }
+hex = { workspace = true }
 reqwest = { workspace = true, features = ["json", "rustls-tls"] }
+ring = { workspace = true }
 serde = { workspace = true }
 serde_json = { workspace = true }
+sha1 = { workspace = true }
+sha2 = { workspace = true }
+shared-contracts = { workspace = true }
+time = { workspace = true }
 tracing = { workspace = true }
 url = { workspace = true }
+urlencoding = { workspace = true }