feat(router): added incoming dispute webhooks flow (#769)

Co-authored-by: Sangamesh <sangamesh.kulkarni@juspay.in>
Co-authored-by: sai harsha <sai.harsha@sai.harsha-MacBookPro>
Co-authored-by: Arun Raj M <jarnura47@gmail.com>

crates/api_models/src/disputes.rs

@@ -1 +1,38 @@
+use masking::Serialize;
+use utoipa::ToSchema;
 
+use super::enums::{DisputeStage, DisputeStatus};
+
+#[derive(Default, Clone, Debug, Serialize, ToSchema)]
+pub struct DisputeResponse {
+    /// The identifier for dispute
+    pub dispute_id: String,
+    /// The identifier for payment_intent
+    pub payment_id: String,
+    /// The identifier for payment_attempt
+    pub attempt_id: String,
+    /// The dispute amount
+    pub amount: String,
+    /// The three-letter ISO currency code
+    pub currency: String,
+    /// Stage of the dispute
+    pub dispute_stage: DisputeStage,
+    /// Status of the dispute
+    pub dispute_status: DisputeStatus,
+    /// Status of the dispute sent by connector
+    pub connector_status: String,
+    /// Dispute id sent by connector
+    pub connector_dispute_id: String,
+    /// Reason of dispute sent by connector
+    pub connector_reason: Option<String>,
+    /// Reason code of dispute sent by connector
+    pub connector_reason_code: Option<String>,
+    /// Evidence deadline of dispute sent by connector
+    pub challenge_required_by: Option<String>,
+    /// Dispute created time sent by connector
+    pub created_at: Option<String>,
+    /// Dispute updated time sent by connector
+    pub updated_at: Option<String>,
+    /// Time at which dispute is received
+    pub received_at: String,
+}