feat: add skills and subagents configuration support

- Updated .gitignore to include skills directory.
- Introduced agent discovery functionality to scan for AGENT.md files in user and project directories.
- Added new API endpoint for discovering filesystem agents.
- Implemented UI components for managing skills and viewing custom subagents.
- Enhanced settings helpers to retrieve skills configuration and custom subagents.
- Updated agent service to incorporate skills and subagents in task delegation.

These changes enhance the capabilities of the system by allowing users to define and manage skills and custom subagents effectively.

apps/server/src/providers/claude-provider.ts

@@ -72,7 +72,17 @@ export class ClaudeProvider extends BaseProvider {
     // Build Claude SDK options
     // AUTONOMOUS MODE: Always bypass permissions for fully autonomous operation
     const hasMcpServers = options.mcpServers && Object.keys(options.mcpServers).length > 0;
-    const defaultTools = ['Read', 'Write', 'Edit', 'Glob', 'Grep', 'Bash', 'WebSearch', 'WebFetch'];
+    const defaultTools = [
+      'Read',
+      'Write',
+      'Edit',
+      'Glob',
+      'Grep',
+      'Bash',
+      'WebSearch',
+      'WebFetch',
+      'Skill',
+    ];
 
     // AUTONOMOUS MODE: Always bypass permissions and allow unrestricted tools
     // Only restrict tools when no MCP servers are configured
@@ -104,6 +114,8 @@ export class ClaudeProvider extends BaseProvider {
       ...(options.mcpServers && { mcpServers: options.mcpServers }),
       // Extended thinking configuration
       ...(maxThinkingTokens && { maxThinkingTokens }),
+      // Subagents configuration for specialized task delegation
+      ...(options.agents && { agents: options.agents }),
     };
 
     // Build prompt payload