Add multi-provider AI model selection and SSH remote access

flutter_app/lib/models/ai_provider.dart

@@ -0,0 +1,137 @@
+import 'package:flutter/material.dart';
+
+/// Metadata for an AI model provider that can be configured
+/// to power the OpenClaw gateway.
+class AiProvider {
+  final String id;
+  final String name;
+  final String description;
+  final IconData icon;
+  final Color color;
+  final String baseUrl;
+  final List<String> defaultModels;
+  final String apiKeyHint;
+
+  const AiProvider({
+    required this.id,
+    required this.name,
+    required this.description,
+    required this.icon,
+    required this.color,
+    required this.baseUrl,
+    required this.defaultModels,
+    required this.apiKeyHint,
+  });
+
+  static const anthropic = AiProvider(
+    id: 'anthropic',
+    name: 'Anthropic',
+    description: 'Claude models — advanced reasoning and coding',
+    icon: Icons.psychology,
+    color: Color(0xFFD97706),
+    baseUrl: 'https://api.anthropic.com/v1',
+    defaultModels: [
+      'claude-sonnet-4-20250514',
+      'claude-opus-4-20250514',
+      'claude-haiku-4-20250506',
+      'claude-3-5-sonnet-20241022',
+    ],
+    apiKeyHint: 'sk-ant-...',
+  );
+
+  static const openai = AiProvider(
+    id: 'openai',
+    name: 'OpenAI',
+    description: 'GPT and o-series models',
+    icon: Icons.auto_awesome,
+    color: Color(0xFF10A37F),
+    baseUrl: 'https://api.openai.com/v1',
+    defaultModels: [
+      'gpt-4o',
+      'gpt-4o-mini',
+      'o1',
+      'o1-mini',
+      'gpt-4-turbo',
+    ],
+    apiKeyHint: 'sk-...',
+  );
+
+  static const google = AiProvider(
+    id: 'google',
+    name: 'Google Gemini',
+    description: 'Gemini family of multimodal models',
+    icon: Icons.diamond,
+    color: Color(0xFF4285F4),
+    baseUrl: 'https://generativelanguage.googleapis.com/v1beta',
+    defaultModels: [
+      'gemini-2.5-pro',
+      'gemini-2.5-flash',
+      'gemini-2.0-flash',
+      'gemini-1.5-pro',
+    ],
+    apiKeyHint: 'AIza...',
+  );
+
+  static const openrouter = AiProvider(
+    id: 'openrouter',
+    name: 'OpenRouter',
+    description: 'Unified API for hundreds of models',
+    icon: Icons.route,
+    color: Color(0xFF6366F1),
+    baseUrl: 'https://openrouter.ai/api/v1',
+    defaultModels: [
+      'anthropic/claude-sonnet-4',
+      'openai/gpt-4o',
+      'google/gemini-2.5-pro',
+      'meta-llama/llama-3.1-405b-instruct',
+    ],
+    apiKeyHint: 'sk-or-...',
+  );
+
+  static const nvidia = AiProvider(
+    id: 'nvidia',
+    name: 'NVIDIA NIM',
+    description: 'GPU-optimized inference endpoints',
+    icon: Icons.memory,
+    color: Color(0xFF76B900),
+    baseUrl: 'https://integrate.api.nvidia.com/v1',
+    defaultModels: [
+      'meta/llama-3.1-405b-instruct',
+      'meta/llama-3.1-70b-instruct',
+      'nvidia/nemotron-4-340b-instruct',
+    ],
+    apiKeyHint: 'nvapi-...',
+  );
+
+  static const deepseek = AiProvider(
+    id: 'deepseek',
+    name: 'DeepSeek',
+    description: 'High-performance open models',
+    icon: Icons.explore,
+    color: Color(0xFF0EA5E9),
+    baseUrl: 'https://api.deepseek.com/v1',
+    defaultModels: [
+      'deepseek-chat',
+      'deepseek-reasoner',
+    ],
+    apiKeyHint: 'sk-...',
+  );
+
+  static const xai = AiProvider(
+    id: 'xai',
+    name: 'xAI',
+    description: 'Grok models from xAI',
+    icon: Icons.bolt,
+    color: Color(0xFFEF4444),
+    baseUrl: 'https://api.x.ai/v1',
+    defaultModels: [
+      'grok-3',
+      'grok-3-mini',
+      'grok-2',
+    ],
+    apiKeyHint: 'xai-...',
+  );
+
+  /// All available AI providers.
+  static const all = [anthropic, openai, google, openrouter, nvidia, deepseek, xai];
+}

flutter_app/lib/models/optional_package.dart

@@ -85,8 +85,30 @@ class OptionalPackage {
     completionSentinel: 'BREW_INSTALL_COMPLETE',
   );
 
+  static const sshPackage = OptionalPackage(
+    id: 'ssh',
+    name: 'OpenSSH',
+    description: 'SSH client and server for secure remote access',
+    icon: Icons.vpn_key,
+    color: Colors.teal,
+    installCommand:
+        'set -e; '
+        'echo ">>> Installing OpenSSH..."; '
+        'apt-get update -qq && apt-get install -y openssh-client openssh-server; '
+        'ssh -V; '
+        'echo ">>> SSH_INSTALL_COMPLETE"',
+    uninstallCommand:
+        'set -e; '
+        'echo ">>> Removing OpenSSH..."; '
+        'apt-get remove -y openssh-client openssh-server && apt-get autoremove -y; '
+        'echo ">>> SSH_UNINSTALL_COMPLETE"',
+    checkPath: 'usr/bin/ssh',
+    estimatedSize: '~10 MB',
+    completionSentinel: 'SSH_INSTALL_COMPLETE',
+  );
+
   /// All available optional packages.
-  static const all = [goPackage, brewPackage];
+  static const all = [goPackage, brewPackage, sshPackage];
 
   /// Sentinel for uninstall completion (derived from install sentinel).
   String get uninstallSentinel =>