Start on a new db2 module that uses SeaORM

crates/collab/src/db2/room.rs

@@ -0,0 +1,31 @@
+use sea_orm::entity::prelude::*;
+
+#[derive(Clone, Debug, PartialEq, Eq, DeriveEntityModel)]
+#[sea_orm(table_name = "room_participants")]
+pub struct Model {
+    #[sea_orm(primary_key)]
+    pub id: i32,
+    pub live_kit_room: String,
+}
+
+#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
+pub enum Relation {
+    #[sea_orm(has_many = "super::room_participant::Entity")]
+    RoomParticipant,
+    #[sea_orm(has_many = "super::project::Entity")]
+    Project,
+}
+
+impl Related<super::room_participant::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::RoomParticipant.def()
+    }
+}
+
+impl Related<super::project::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::Project.def()
+    }
+}
+
+impl ActiveModelBehavior for ActiveModel {}