add iam system

add iam store

feat: add crypto crate

introduce decrypt_data and encrypt_data functions

Signed-off-by: bestgopher <84328409@qq.com>

iam/src/policy/doc.rs

@@ -0,0 +1,12 @@
+use serde::{Deserialize, Serialize};
+use time::OffsetDateTime;
+
+use super::Policy;
+
+#[derive(Serialize, Deserialize, Default, Clone)]
+pub struct PolicyDoc {
+    pub version: i64,
+    pub policy: Policy,
+    pub create_date: Option<OffsetDateTime>,
+    pub update_date: Option<OffsetDateTime>,
+}