feat(smartnetwork): Add exclude option to findFreePort and skip excluded ports during search

ts/smartnetwork.classes.smartnetwork.ts

@@ -31,6 +31,8 @@ export interface Hop {
 export interface IFindFreePortOptions {
   /** If true, selects a random available port within the range instead of the first one */
   randomize?: boolean;
+  /** Array of port numbers to exclude from the search */
+  exclude?: number[];
 }
 
 export class SmartNetwork {
@@ -169,12 +171,20 @@ export class SmartNetwork {
       throw new NetworkError('Start port must be less than or equal to end port', 'EINVAL');
     }
 
+    // Create a set of excluded ports for efficient lookup
+    const excludedPorts = new Set(options?.exclude || []);
+
     // If randomize option is true, collect all available ports and select randomly
     if (options?.randomize) {
       const availablePorts: number[] = [];
       
       // Scan the range to find all available ports
       for (let port = startPort; port <= endPort; port++) {
+        // Skip excluded ports
+        if (excludedPorts.has(port)) {
+          continue;
+        }
+        
         const isUnused = await this.isLocalPortUnused(port);
         if (isUnused) {
           availablePorts.push(port);
@@ -192,6 +202,11 @@ export class SmartNetwork {
     } else {
       // Default behavior: return the first available port (sequential search)
       for (let port = startPort; port <= endPort; port++) {
+        // Skip excluded ports
+        if (excludedPorts.has(port)) {
+          continue;
+        }
+        
         const isUnused = await this.isLocalPortUnused(port);
         if (isUnused) {
           return port;