feat(router): Add Smart Routing to route payments efficiently (#2665)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: shashank_attarde <shashank.attarde@juspay.in>
Co-authored-by: Aprabhat19 <amishaprabhat@gmail.com>
Co-authored-by: Amisha Prabhat <55580080+Aprabhat19@users.noreply.github.com>

crates/diesel_models/src/routing_algorithm.rs

@@ -0,0 +1,37 @@
+use diesel::{Identifiable, Insertable, Queryable};
+use serde::{Deserialize, Serialize};
+
+use crate::{enums, schema::routing_algorithm};
+
+#[derive(Clone, Debug, Identifiable, Insertable, Queryable, Serialize, Deserialize)]
+#[diesel(table_name = routing_algorithm, primary_key(algorithm_id))]
+pub struct RoutingAlgorithm {
+    pub algorithm_id: String,
+    pub profile_id: String,
+    pub merchant_id: String,
+    pub name: String,
+    pub description: Option<String>,
+    pub kind: enums::RoutingAlgorithmKind,
+    pub algorithm_data: serde_json::Value,
+    pub created_at: time::PrimitiveDateTime,
+    pub modified_at: time::PrimitiveDateTime,
+}
+
+pub struct RoutingAlgorithmMetadata {
+    pub algorithm_id: String,
+    pub name: String,
+    pub description: Option<String>,
+    pub kind: enums::RoutingAlgorithmKind,
+    pub created_at: time::PrimitiveDateTime,
+    pub modified_at: time::PrimitiveDateTime,
+}
+
+pub struct RoutingProfileMetadata {
+    pub profile_id: String,
+    pub algorithm_id: String,
+    pub name: String,
+    pub description: Option<String>,
+    pub kind: enums::RoutingAlgorithmKind,
+    pub created_at: time::PrimitiveDateTime,
+    pub modified_at: time::PrimitiveDateTime,
+}