Add GitHub URL support and fix MCP server bugs

- Implement add-github command for cloning MCP servers from GitHub repositories
- Add automatic Rust project building with cargo build --release
- Add stdio transport support for local MCP processes
- Fix Bearer token masking in authentication headers
- Add configuration persistence with JSON file storage
- Enhance McpServerConfig with github_url and local_path fields
- Improve error handling and debug logging
- Add comprehensive stdio communication testing
- Successfully tested with real solana-mcp-server repository

Co-authored-by: 0xrinegade <[email protected]>

Author: Copilot

src/clparse.rs

@@ -886,6 +886,34 @@ pub fn parse_command_line() -> clap::ArgMatches {
                                 .help("Enable the server immediately after adding")
                         )
                 )
+                .subcommand(
+                    Command::new("add-github")
+                        .about("Add MCP server from GitHub repository")
+                        .arg(
+                            Arg::new("server_id")
+                                .help("Server identifier")
+                                .required(true)
+                                .index(1)
+                        )
+                        .arg(
+                            Arg::new("github_url")
+                                .help("GitHub repository URL (e.g., https://github.com/openSVM/solana-mcp-server)")
+                                .required(true)
+                                .index(2)
+                        )
+                        .arg(
+                            Arg::new("name")
+                                .long("name")
+                                .value_name("NAME")
+                                .help("Human-readable name for the server")
+                        )
+                        .arg(
+                            Arg::new("enabled")
+                                .long("enabled")
+                                .action(ArgAction::SetTrue)
+                                .help("Enable the server immediately after adding")
+                        )
+                )
                 .subcommand(
                     Command::new("remove")
                         .about("Remove an MCP server configuration")

src/main.rs

@@ -351,6 +351,8 @@ async fn handle_mcp_command(
                 auth,
                 enabled,
                 extra_config: std::collections::HashMap::new(),
+                github_url: None,
+                local_path: None,
             };
 
             mcp_service.add_server(server_id.clone(), config);
@@ -367,6 +369,38 @@ async fn handle_mcp_command(
             }
         }
 
+        "add-github" => {
+            let server_id = mcp_sub_matches.get_one::<String>("server_id").unwrap();
+            let github_url = mcp_sub_matches.get_one::<String>("github_url").unwrap();
+            let name = mcp_sub_matches.get_one::<String>("name").cloned();
+            let enabled = mcp_sub_matches.get_flag("enabled");
+
+            println!("🔄 Cloning MCP server from GitHub: {}", github_url);
+            
+            match mcp_service.add_server_from_github(server_id.clone(), github_url.clone(), name).await {
+                Ok(_) => {
+                    println!("✅ Successfully cloned and configured MCP server '{}'", server_id);
+                    println!("   Repository: {}", github_url);
+                    
+                    if enabled {
+                        println!("🔄 Testing server connectivity...");
+                        if let Err(e) = mcp_service.test_server(server_id).await {
+                            eprintln!("⚠️  Warning: Server test failed: {}", e);
+                            eprintln!("   The server was configured but may not be accessible.");
+                        } else {
+                            println!("✅ Server connectivity test passed!");
+                        }
+                    } else {
+                        println!("💡 Use 'osvm mcp enable {}' to activate it", server_id);
+                    }
+                }
+                Err(e) => {
+                    eprintln!("❌ Failed to clone and configure MCP server: {}", e);
+                    std::process::exit(1);
+                }
+            }
+        }
+
         "remove" => {
             let server_id = mcp_sub_matches.get_one::<String>("server_id").unwrap();
             if let Some(removed_config) = mcp_service.remove_server(server_id) {
@@ -587,6 +621,8 @@ async fn handle_mcp_command(
                 auth: None,
                 enabled: auto_enable,
                 extra_config: std::collections::HashMap::new(),
+                github_url: None,
+                local_path: None,
             };
 
             mcp_service.add_server("solana".to_string(), config);