feat(server): add bridge forwarding mode and per-client destination policy overrides

ts/smartvpn.interfaces.ts

@@ -93,7 +93,7 @@ export interface IVpnServerConfig {
   enableNat?: boolean;
   /** Forwarding mode: 'tun' (kernel TUN, requires root), 'socket' (userspace NAT),
    *  or 'testing' (monitoring only). Default: 'testing'. */
-  forwardingMode?: 'tun' | 'socket' | 'testing';
+  forwardingMode?: 'tun' | 'socket' | 'bridge' | 'testing';
   /** Default rate limit for new clients (bytes/sec). Omit for unlimited. */
   defaultRateLimitBytesPerSec?: number;
   /** Default burst size for new clients (bytes). Omit for unlimited. */
@@ -137,6 +137,22 @@ export interface IVpnServerConfig {
    *  Controls what traffic the client routes through the VPN tunnel.
    *  Defaults to ['0.0.0.0/0'] (full tunnel). Set to e.g. ['10.8.0.0/24'] for split tunnel. */
   clientAllowedIPs?: string[];
+
+  // Bridge mode configuration (forwardingMode: 'bridge')
+
+  /** LAN subnet CIDR for bridge mode (e.g. '192.168.1.0/24').
+   *  VPN clients get IPs from this subnet instead of the VPN subnet.
+   *  Required when forwardingMode is 'bridge'. */
+  bridgeLanSubnet?: string;
+  /** Physical network interface to bridge (e.g. 'eth0').
+   *  Auto-detected from the default route if omitted. */
+  bridgePhysicalInterface?: string;
+  /** Start of VPN client IP range within the LAN subnet (host offset, e.g. 200 for .200).
+   *  Default: 200. */
+  bridgeIpRangeStart?: number;
+  /** End of VPN client IP range within the LAN subnet (host offset, e.g. 250 for .250).
+   *  Default: 250. */
+  bridgeIpRangeEnd?: number;
 }
 
 /**
@@ -310,6 +326,10 @@ export interface IClientSecurity {
   maxConnections?: number;
   /** Per-client rate limiting. */
   rateLimit?: IClientRateLimit;
+  /** Per-client destination routing policy override.
+   *  When set, overrides the server-level destinationPolicy for this client's traffic.
+   *  Supports the same options: forceTarget, block, allow with allow/block lists. */
+  destinationPolicy?: IDestinationPolicy;
 }
 
 /**