feat(core): implement server ban

closes #274

crates/core/models/src/v0/mod.rs

@@ -5,6 +5,7 @@ mod channel_webhooks;
 mod channels;
 mod emojis;
 mod files;
+mod server_bans;
 mod server_members;
 mod servers;
 mod user_settings;
@@ -17,6 +18,7 @@ pub use channel_webhooks::*;
 pub use channels::*;
 pub use emojis::*;
 pub use files::*;
+pub use server_bans::*;
 pub use server_members::*;
 pub use servers::*;
 pub use user_settings::*;

crates/core/models/src/v0/server_bans.rs

@@ -0,0 +1,12 @@
+use super::MemberCompositeKey;
+
+auto_derived!(
+    /// Server Ban
+    pub struct ServerBan {
+        /// Unique member id
+        #[cfg_attr(feature = "serde", serde(rename = "_id"))]
+        pub id: MemberCompositeKey,
+        /// Reason for ban creation
+        pub reason: Option<String>,
+    }
+);