feat(dcrouter): add configurable baseDir and centralized path resolution; use resolved data paths for storage, cache and DNS

ts/classes.dcrouter.ts

@@ -23,9 +23,12 @@ import { MetricsManager } from './monitoring/index.js';
 import { RadiusServer, type IRadiusServerConfig } from './radius/index.js';
 
 export interface IDcRouterOptions {
-  /** 
+  /** Base directory for all dcrouter data. Defaults to ~/.serve.zone/dcrouter */
+  baseDir?: string;
+
+  /**
    * Direct SmartProxy configuration - gives full control over HTTP/HTTPS and TCP/SNI traffic
-   * This is the preferred way to configure HTTP/HTTPS and general TCP/SNI traffic 
+   * This is the preferred way to configure HTTP/HTTPS and general TCP/SNI traffic
    */
   smartProxyConfig?: plugins.smartproxy.ISmartProxyOptions;
   
@@ -170,6 +173,7 @@ export interface PortProxyRuleContext {
 
 export class DcRouter {
   public options: IDcRouterOptions;
+  public resolvedPaths: ReturnType<typeof paths.resolvePaths>;
 
   // Core services
   public smartProxy?: plugins.smartproxy.SmartProxy;
@@ -210,10 +214,13 @@ export class DcRouter {
       ...optionsArg
     };
 
+    // Resolve all data paths from baseDir
+    this.resolvedPaths = paths.resolvePaths(this.options.baseDir);
+
     // Default storage to filesystem if not configured
     if (!this.options.storage) {
       this.options.storage = {
-        fsPath: plugins.path.join(paths.dcrouterHomeDir, 'storage'),
+        fsPath: this.resolvedPaths.defaultStoragePath,
       };
     }
 
@@ -372,7 +379,7 @@ export class DcRouter {
 
     // Initialize CacheDb singleton
     this.cacheDb = CacheDb.getInstance({
-      storagePath: cacheConfig.storagePath || paths.defaultTsmDbPath,
+      storagePath: cacheConfig.storagePath || this.resolvedPaths.defaultTsmDbPath,
       dbName: cacheConfig.dbName || 'dcrouter',
       debug: false,
     });
@@ -1306,7 +1313,7 @@ export class DcRouter {
     
     try {
       // Ensure paths are imported
-      const dnsDir = paths.dnsRecordsDir;
+      const dnsDir = this.resolvedPaths.dnsRecordsDir;
       
       // Check if directory exists
       if (!plugins.fs.existsSync(dnsDir)) {
@@ -1370,7 +1377,7 @@ export class DcRouter {
     }
     
     // Ensure necessary directories exist
-    paths.ensureDirectories();
+    paths.ensureDataDirectories(this.resolvedPaths);
     
     // Generate DKIM keys for each email domain
     for (const domainConfig of this.options.emailConfig.domains) {