fix: dynamically resolve Claude binary path on Windows

Previously hardcoded `/home/naomi/.local/bin/claude` which would break
for other users. Now uses `wsl -e bash -l -c "which claude"` to find
the Claude binary dynamically using a login shell that has the full PATH.

Also updated 6 plugin/marketplace functions that were still using
`std::process::Command::new("claude")` directly instead of the
`create_claude_command()` helper:
- enable_plugin
- disable_plugin
- update_plugin
- list_marketplaces
- add_marketplace
- remove_marketplace

This ensures all Claude CLI commands work properly on Windows regardless
of where Claude is installed, whilst maintaining backwards compatibility.

✨ This fix was created by Hikari~ 🌸

src-tauri/src/commands.rs

@@ -55,14 +55,50 @@ fn wsl_path_to_windows(wsl_path: &str) -> Option<String> {
 fn create_claude_command() -> std::process::Command {
     #[cfg(target_os = "windows")]
     {
-        let mut cmd = std::process::Command::new("wsl");
-        cmd.arg("claude");
-        cmd
+        // Use `which` inside WSL to find the claude binary dynamically
+        // Non-login shells launched by `wsl` don't inherit the full user PATH,
+        // so we need to use a login shell to get the correct PATH
+        let which_output = std::process::Command::new("wsl")
+            .args(["-e", "bash", "-l", "-c", "which claude"])
+            .output();
+
+        match which_output {
+            Ok(output) if output.status.success() => {
+                let claude_path = String::from_utf8_lossy(&output.stdout).trim().to_string();
+                let mut cmd = std::process::Command::new("wsl");
+                cmd.arg(claude_path);
+                cmd
+            }
+            _ => {
+                // Fallback to just "claude" if which fails
+                // This maintains backwards compatibility
+                let mut cmd = std::process::Command::new("wsl");
+                cmd.arg("claude");
+                cmd
+            }
+        }
     }
 
     #[cfg(not(target_os = "windows"))]
     {
-        std::process::Command::new("claude")
+        // Use `which` to find the claude binary dynamically
+        // This works regardless of how Claude Code was installed (standalone, npm, etc.)
+        // and avoids hardcoding paths
+        let which_output = std::process::Command::new("which")
+            .arg("claude")
+            .output();
+
+        match which_output {
+            Ok(output) if output.status.success() => {
+                let claude_path = String::from_utf8_lossy(&output.stdout).trim().to_string();
+                std::process::Command::new(claude_path)
+            }
+            _ => {
+                // Fallback to just "claude" if which fails
+                // This maintains backwards compatibility
+                std::process::Command::new("claude")
+            }
+        }
     }
 }
 
@@ -1427,7 +1463,7 @@ pub async fn uninstall_plugin(plugin_name: String) -> Result<String, String> {
 pub async fn enable_plugin(plugin_name: String) -> Result<String, String> {
     tracing::debug!("Enabling plugin: {}", plugin_name);
 
-    let output = std::process::Command::new("claude")
+    let output = create_claude_command()
         .arg("plugin")
         .arg("enable")
         .arg(&plugin_name)
@@ -1456,7 +1492,7 @@ pub async fn enable_plugin(plugin_name: String) -> Result<String, String> {
 pub async fn disable_plugin(plugin_name: String) -> Result<String, String> {
     tracing::debug!("Disabling plugin: {}", plugin_name);
 
-    let output = std::process::Command::new("claude")
+    let output = create_claude_command()
         .arg("plugin")
         .arg("disable")
         .arg(&plugin_name)
@@ -1485,7 +1521,7 @@ pub async fn disable_plugin(plugin_name: String) -> Result<String, String> {
 pub async fn update_plugin(plugin_name: String) -> Result<String, String> {
     tracing::debug!("Updating plugin: {}", plugin_name);
 
-    let output = std::process::Command::new("claude")
+    let output = create_claude_command()
         .arg("plugin")
         .arg("update")
         .arg(&plugin_name)
@@ -1557,7 +1593,7 @@ fn parse_marketplace_list(stdout: &str) -> Vec<MarketplaceInfo> {
 pub async fn list_marketplaces() -> Result<Vec<MarketplaceInfo>, String> {
     tracing::debug!("Listing plugin marketplaces");
 
-    let output = std::process::Command::new("claude")
+    let output = create_claude_command()
         .arg("plugin")
         .arg("marketplace")
         .arg("list")
@@ -1590,7 +1626,7 @@ pub async fn list_marketplaces() -> Result<Vec<MarketplaceInfo>, String> {
 pub async fn add_marketplace(source: String) -> Result<String, String> {
     tracing::debug!("Adding marketplace: {}", source);
 
-    let output = std::process::Command::new("claude")
+    let output = create_claude_command()
         .arg("plugin")
         .arg("marketplace")
         .arg("add")
@@ -1623,7 +1659,7 @@ pub async fn add_marketplace(source: String) -> Result<String, String> {
 pub async fn remove_marketplace(name: String) -> Result<String, String> {
     tracing::debug!("Removing marketplace: {}", name);
 
-    let output = std::process::Command::new("claude")
+    let output = create_claude_command()
         .arg("plugin")
         .arg("marketplace")
         .arg("remove")
@@ -1930,21 +1966,42 @@ mod tests {
     #[test]
     #[cfg(target_os = "windows")]
     fn test_create_claude_command_windows() {
-        // On Windows, should create a command that uses wsl as the program with claude as first arg
+        // On Windows, should create a command that uses wsl with full path to claude
+        // The path is resolved dynamically via `which` in a login shell
         let cmd = create_claude_command();
         let program = cmd.get_program();
 
         assert_eq!(program, "wsl");
+
+        // Verify the first argument is a path to claude (full path from `which`)
+        // or fallback to just "claude" if which fails
+        let args: Vec<&std::ffi::OsStr> = cmd.get_args().collect();
+        assert_eq!(args.len(), 1);
+
+        let arg_str = args[0].to_string_lossy();
+        assert!(
+            arg_str.contains("claude"),
+            "Expected argument to contain 'claude', got: {}",
+            arg_str
+        );
     }
 
     #[test]
     #[cfg(not(target_os = "windows"))]
     fn test_create_claude_command_linux() {
-        // On Linux/Mac, should create a command that uses claude directly
+        // On Linux/Mac, should create a command that uses the full path to claude
+        // (resolved via `which` command)
         let cmd = create_claude_command();
         let program = cmd.get_program();
 
-        assert_eq!(program, "claude");
+        // The program should be the full path to claude (from `which`)
+        // or fallback to "claude" if which fails
+        let program_str = program.to_string_lossy();
+        assert!(
+            program_str.ends_with("claude"),
+            "Expected program to end with 'claude', got: {}",
+            program_str
+        );
     }
 
     // ==================== validate_directory tests ====================