feat: 拆分 worker 架构并增强 assistant 安全保护

- 新增 daemon/channel/assistant/function/scheduler/logging worker 架构和 JetStream 消息协议

- 修复邮件通知误入 assistant、迁移 checksum、日志 subject 和工具调用无限循环风险

- 新增 assistant 工具轮次熔断、工具结果截断和提示词软收敛规则

- 补充邮件推送关键字、可信发件人配置、升级日志和验证测试

ias-service/Cargo.toml

@@ -1,15 +1,11 @@
 [package]
 name = "ias-service"
-version = "0.1.25"
+version = "0.1.27"
 edition = "2024"
 
 [dependencies]
-# ── 公共模块 ──
-ias-common = { path = "../ias-common" }
 # ── 上下文管理 ──
 ias-context = { path = "../ias-context" }
-# ── HTTP 服务与预览页面 ──
-ias-http = { path = "../ias-http" }
 # ── 邮件轮询 ──
 ias-mail = { path = "../ias-mail" }
 # ── ai api 调用 ──
@@ -19,28 +15,11 @@ ias-wechat = { path = "../ias-wechat" }
 # ── api ──
 axum = "0.8.9"
 # ── 异步运行时 ──
-tokio = { version = "1.0", features = [
-    "rt-multi-thread",
-    "macros",
-    "sync",
-    "time",
-    "process",
-    "signal",
-    "io-util",
-    "net",
-] } # 异步运行时核心
-# ── HTTP 客户端 ──
-reqwest = { version = "0.12", default-features = false, features = [
-    "json",
-    "stream",
-    "rustls-tls",
-] } # HTTP 请求（微信 API + DeepSeek API + 工具调用）
+tokio = { version = "1.0", features = ["fs"] }
 # ── 序列化 ──
 serde = { version = "1.0", features = ["derive"] } # 序列化/反序列化
 serde_json = "1.0"                                 # JSON 处理
 serde_yaml = "0.9"                                 # YAML 解析（工具规范文件）
-# ── 环境变量 ──
-dotenvy = "0.15.7"
 # ── 数据库 ──
 sqlx = { version = "0.9.0", features = [
     "runtime-tokio",
@@ -50,13 +29,7 @@ sqlx = { version = "0.9.0", features = [
 ] }
 # ── 错误处理 ──
 anyhow = "1"
-thiserror = "2"
 # ── 日志管理 ──
-tracing = "0.1"
 tracing-subscriber = { version = "0.3", features = ["env-filter"] }
 # ── 时间处理 ──
 chrono = { version = "0.4", features = ["serde"] }             # 日期时间
-# ── 唯一标识 ──
-uuid = { version = "1", features = ["v4", "serde"] }
-# ── Unix 后台进程控制 ──
-libc = "0.2"