Merge Lightning backend into Mempool backend

backend/src/api/lightning/lightning-api.interface.ts

@@ -0,0 +1,53 @@
+export namespace ILightningApi {
+  export interface NetworkInfo {
+    average_channel_size: number;
+    channel_count: number;
+    max_channel_size: number;
+    median_channel_size: number;
+    min_channel_size: number;
+    node_count: number;
+    not_recently_updated_policy_count: number;
+    total_capacity: number;
+  }
+
+  export interface NetworkGraph {
+    channels: Channel[];
+    nodes: Node[];
+  }
+
+  export interface Channel {
+    id: string;
+    capacity: number;
+    policies: Policy[];
+    transaction_id: string;
+    transaction_vout: number;
+    updated_at: string;
+  }
+
+  interface Policy {
+    public_key: string;
+    base_fee_mtokens?: number;
+    cltv_delta?: number;
+    fee_rate?: number;
+    is_disabled?: boolean;
+    max_htlc_mtokens?: number;
+    min_htlc_mtokens?: number;
+    updated_at?: string;
+  }
+
+  export interface Node {
+    alias: string;
+    color: string;
+    features: Feature[];
+    public_key: string;
+    sockets: string[];
+    updated_at: string;
+  }
+
+  interface Feature {
+    bit: number;
+    is_known: boolean;
+    is_required: boolean;
+    type: string;
+  }
+}