feat(version): enhance version detection and display across sidecar and binary installations

- Implement regex-based version extraction for more reliable parsing
- Add version detection for bundled sidecar installations with proper execution
- Improve version checking for sidecar binary with timeout and error handling
- Update UI to display version with "v" prefix for consistency
- Add comprehensive logging for version detection debugging
- Handle edge cases in version extraction with fallback mechanisms

src-tauri/src/claude_binary.rs

@@ -408,15 +408,30 @@ fn get_claude_version(path: &str) -> Result<Option<String>, String> {
 /// Extract version string from command output
 fn extract_version_from_output(stdout: &[u8]) -> Option<String> {
     let output_str = String::from_utf8_lossy(stdout);
-
-    // Extract version: first token before whitespace that looks like a version
-    output_str
-        .split_whitespace()
-        .find(|token| {
-            // Version usually contains dots and numbers
-            token.chars().any(|c| c == '.') && token.chars().any(|c| c.is_numeric())
-        })
-        .map(|s| s.to_string())
+    
+    // Debug log the raw output
+    debug!("Raw version output: {:?}", output_str);
+    
+    // Use regex to directly extract version pattern (e.g., "1.0.41")
+    // This pattern matches:
+    // - One or more digits, followed by
+    // - A dot, followed by
+    // - One or more digits, followed by
+    // - A dot, followed by
+    // - One or more digits
+    // - Optionally followed by pre-release/build metadata
+    let version_regex = regex::Regex::new(r"(\d+\.\d+\.\d+(?:-[a-zA-Z0-9.-]+)?(?:\+[a-zA-Z0-9.-]+)?)").ok()?;
+    
+    if let Some(captures) = version_regex.captures(&output_str) {
+        if let Some(version_match) = captures.get(1) {
+            let version = version_match.as_str().to_string();
+            debug!("Extracted version: {:?}", version);
+            return Some(version);
+        }
+    }
+    
+    debug!("No version found in output");
+    None
 }
 
 /// Select the best installation based on version

src-tauri/src/commands/agents.rs

@@ -11,6 +11,7 @@ use tauri::{AppHandle, Emitter, Manager, State};
 use tauri_plugin_shell::ShellExt;
 use tokio::io::{AsyncBufReadExt, BufReader};
 use tokio::process::Command;
+use regex;
 
 /// Finds the full path to the claude binary
 /// This is necessary because macOS apps have a limited PATH environment
@@ -1697,13 +1698,85 @@ pub async fn set_claude_binary_path(db: State<'_, AgentDb>, path: String) -> Res
 /// List all available Claude installations on the system
 #[tauri::command]
 pub async fn list_claude_installations(
+    app: AppHandle,
 ) -> Result<Vec<crate::claude_binary::ClaudeInstallation>, String> {
-    let installations = crate::claude_binary::discover_claude_installations();
+    let mut installations = crate::claude_binary::discover_claude_installations();
 
     if installations.is_empty() {
         return Err("No Claude Code installations found on the system".to_string());
     }
 
+    // For bundled installations, execute the sidecar to get the actual version
+    for installation in &mut installations {
+        if installation.installation_type == crate::claude_binary::InstallationType::Bundled {
+            // Try to get the version by executing the sidecar
+            use tauri_plugin_shell::process::CommandEvent;
+            
+            // Create a temporary directory for the sidecar to run in
+            let temp_dir = std::env::temp_dir();
+            
+            // Create sidecar command with --version flag
+            let sidecar_cmd = match app
+                .shell()
+                .sidecar("claude-code") {
+                Ok(cmd) => cmd.args(["--version"]).current_dir(&temp_dir),
+                Err(e) => {
+                    log::warn!("Failed to create sidecar command for version check: {}", e);
+                    continue;
+                }
+            };
+            
+            // Spawn the sidecar and collect output
+            match sidecar_cmd.spawn() {
+                Ok((mut rx, _child)) => {
+                    let mut stdout_output = String::new();
+                    let mut stderr_output = String::new();
+                    
+                    // Set a timeout for version check
+                    let timeout = tokio::time::Duration::from_secs(5);
+                    let start_time = tokio::time::Instant::now();
+                    
+                    while let Ok(Some(event)) = tokio::time::timeout_at(
+                        start_time + timeout,
+                        rx.recv()
+                    ).await {
+                        match event {
+                            CommandEvent::Stdout(data) => {
+                                stdout_output.push_str(&String::from_utf8_lossy(&data));
+                            }
+                            CommandEvent::Stderr(data) => {
+                                stderr_output.push_str(&String::from_utf8_lossy(&data));
+                            }
+                            CommandEvent::Terminated { .. } => {
+                                break;
+                            }
+                            CommandEvent::Error(e) => {
+                                log::warn!("Error during sidecar version check: {}", e);
+                                break;
+                            }
+                            _ => {}
+                        }
+                    }
+                    
+                    // Use regex to directly extract version pattern
+                    let version_regex = regex::Regex::new(r"(\d+\.\d+\.\d+(?:-[a-zA-Z0-9.-]+)?(?:\+[a-zA-Z0-9.-]+)?)").ok();
+                    
+                    if let Some(regex) = version_regex {
+                        if let Some(captures) = regex.captures(&stdout_output) {
+                            if let Some(version_match) = captures.get(1) {
+                                installation.version = Some(version_match.as_str().to_string());
+                                log::info!("Bundled sidecar version: {}", version_match.as_str());
+                            }
+                        }
+                    }
+                }
+                Err(e) => {
+                    log::warn!("Failed to spawn sidecar for version check: {}", e);
+                }
+            }
+        }
+    }
+
     Ok(installations)
 }
 

src-tauri/src/commands/claude.rs

@@ -11,6 +11,7 @@ use tokio::process::{Child, Command};
 use tokio::sync::Mutex;
 use tauri_plugin_shell::ShellExt;
 use tauri_plugin_shell::process::CommandEvent;
+use regex;
 
 /// Global state to track current Claude process
 pub struct ClaudeProcessState {
@@ -577,17 +578,89 @@ pub async fn check_claude_version(app: AppHandle) -> Result<ClaudeVersionStatus,
         }
     };
 
-    // If the selected path is the special sidecar identifier, we cannot execute it directly.
-    // Instead, assume the bundled sidecar is available (find_claude_binary already verified
-    // this) and return a positive status without a version string. Attempting to spawn the
-    // sidecar here would require async streaming plumbing that is over-kill for a simple
-    // presence check and fails in debug builds (os error 2).
+    // If the selected path is the special sidecar identifier, execute it to get version
     if claude_path == "claude-code" {
-        return Ok(ClaudeVersionStatus {
-            is_installed: true,
-            version: None,
-            output: "Using bundled Claude Code sidecar".to_string(),
-        });
+        use tauri_plugin_shell::process::CommandEvent;
+        
+        // Create a temporary directory for the sidecar to run in
+        let temp_dir = std::env::temp_dir();
+        
+        // Create sidecar command with --version flag
+        let sidecar_cmd = match app
+            .shell()
+            .sidecar("claude-code") {
+            Ok(cmd) => cmd.args(["--version"]).current_dir(&temp_dir),
+            Err(e) => {
+                log::error!("Failed to create sidecar command: {}", e);
+                return Ok(ClaudeVersionStatus {
+                    is_installed: true, // We know it exists, just couldn't create command
+                    version: None,
+                    output: format!("Using bundled Claude Code sidecar (command creation failed: {})", e),
+                });
+            }
+        };
+        
+        // Spawn the sidecar and collect output
+        match sidecar_cmd.spawn() {
+            Ok((mut rx, _child)) => {
+                let mut stdout_output = String::new();
+                let mut stderr_output = String::new();
+                let mut exit_success = false;
+                
+                // Collect output from the sidecar
+                while let Some(event) = rx.recv().await {
+                    match event {
+                        CommandEvent::Stdout(data) => {
+                            let line = String::from_utf8_lossy(&data);
+                            stdout_output.push_str(&line);
+                        }
+                        CommandEvent::Stderr(data) => {
+                            let line = String::from_utf8_lossy(&data);
+                            stderr_output.push_str(&line);
+                        }
+                        CommandEvent::Terminated(payload) => {
+                            exit_success = payload.code.unwrap_or(-1) == 0;
+                            break;
+                        }
+                        _ => {}
+                    }
+                }
+                
+                // Use regex to directly extract version pattern (e.g., "1.0.41")
+                let version_regex = regex::Regex::new(r"(\d+\.\d+\.\d+(?:-[a-zA-Z0-9.-]+)?(?:\+[a-zA-Z0-9.-]+)?)").ok();
+                
+                let version = if let Some(regex) = version_regex {
+                    regex.captures(&stdout_output)
+                        .and_then(|captures| captures.get(1))
+                        .map(|m| m.as_str().to_string())
+                } else {
+                    None
+                };
+                
+                let full_output = if stderr_output.is_empty() {
+                    stdout_output.clone()
+                } else {
+                    format!("{}\n{}", stdout_output, stderr_output)
+                };
+
+                // Check if the output matches the expected format
+                let is_valid = stdout_output.contains("(Claude Code)") || stdout_output.contains("Claude Code") || version.is_some();
+
+                return Ok(ClaudeVersionStatus {
+                    is_installed: is_valid && exit_success,
+                    version,
+                    output: full_output.trim().to_string(),
+                });
+            }
+            Err(e) => {
+                log::error!("Failed to execute sidecar: {}", e);
+                return Ok(ClaudeVersionStatus {
+                    is_installed: true, // We know it exists, just couldn't get version
+                    version: None,
+                    output: format!("Using bundled Claude Code sidecar (version check failed: {})", e),
+                });
+            }
+        }
     }
 
     use log::debug;debug!("Claude path: {}", claude_path);
@@ -622,6 +695,18 @@ pub async fn check_claude_version(app: AppHandle) -> Result<ClaudeVersionStatus,
             Ok(output) => {
                 let stdout = String::from_utf8_lossy(&output.stdout).to_string();
                 let stderr = String::from_utf8_lossy(&output.stderr).to_string();
+                
+                // Use regex to directly extract version pattern (e.g., "1.0.41")
+                let version_regex = regex::Regex::new(r"(\d+\.\d+\.\d+(?:-[a-zA-Z0-9.-]+)?(?:\+[a-zA-Z0-9.-]+)?)").ok();
+                
+                let version = if let Some(regex) = version_regex {
+                    regex.captures(&stdout)
+                        .and_then(|captures| captures.get(1))
+                        .map(|m| m.as_str().to_string())
+                } else {
+                    None
+                };
+                
                 let full_output = if stderr.is_empty() {
                     stdout.clone()
                 } else {
@@ -632,14 +717,6 @@ pub async fn check_claude_version(app: AppHandle) -> Result<ClaudeVersionStatus,
                 // Expected format: "1.0.17 (Claude Code)" or similar
                 let is_valid = stdout.contains("(Claude Code)") || stdout.contains("Claude Code");
 
-                // Extract version number if valid
-                let version = if is_valid {
-                    // Try to extract just the version number
-                    stdout.split_whitespace().next().map(|s| s.to_string())
-                } else {
-                    None
-                };
-
                 Ok(ClaudeVersionStatus {
                     is_installed: is_valid && output.status.success(),
                     version,

src/components/Topbar.tsx

@@ -112,7 +112,7 @@ export const Topbar: React.FC<TopbarProps> = ({
           />
           <span>
             {versionStatus.is_installed && versionStatus.version
-              ? `Claude Code ${versionStatus.version}`
+              ? `Claude Code v${versionStatus.version}`
               : "Claude Code"}
           </span>
         </div>