Add runtime logging to verify integrated PR features

Added logging to confirm all integrated features work at runtime:

- PR winfunc#261 (Mermaid): Track cache hits and render success
- PR winfunc#222 (MCP Async): Track sidecar vs regular execution
- PR winfunc#346 (NVM PATH): Track Node.js PATH additions

All logs prefixed with PR numbers for easy identification.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: Sallvainian

src-tauri/src/claude_binary.rs

@@ -691,7 +691,8 @@ pub fn create_command_with_env(program: &str) -> Command {
                             if node_bin_path.exists() {
                                 let node_bin_str = node_bin_path.to_string_lossy();
                                 let new_path = format!("{}:{}", node_bin_str, current_path);
-                                debug!("Adding NVM Node.js to PATH for Claude execution: {}", node_bin_str);
+                                info!("[PR #346 NVM PATH] ✅ Adding NVM Node.js v{} to PATH for Claude execution", latest_version);
+                                debug!("Full NVM path added: {}", node_bin_str);
                                 cmd.env("PATH", new_path);
                             }
                         }

src-tauri/src/commands/mcp.rs

@@ -106,6 +106,8 @@ async fn execute_claude_mcp_command(app_handle: &AppHandle, args: Vec<&str>) ->
         // Use Tauri sidecar API
         use tauri_plugin_shell::ShellExt;
 
+        info!("[PR #222 MCP Async] ✅ Using async sidecar execution for MCP command");
+
         // Create sidecar command
         let mut sidecar_cmd = app_handle
             .shell()
@@ -118,7 +120,7 @@ async fn execute_claude_mcp_command(app_handle: &AppHandle, args: Vec<&str>) ->
             sidecar_cmd = sidecar_cmd.arg(arg);
         }
 
-        info!("Executing sidecar command");
+        info!("Executing sidecar command with async/await");
 
         // Execute the command
         let output = sidecar_cmd
@@ -134,6 +136,8 @@ async fn execute_claude_mcp_command(app_handle: &AppHandle, args: Vec<&str>) ->
         }
     } else {
         // Use regular command execution
+        info!("[PR #222 MCP Async] ✅ Using regular command execution (path: {})", claude_path);
+
         let mut cmd = create_command_with_env(&claude_path);
         cmd.arg("mcp");
         for arg in args {

src/components/MermaidRenderer.tsx

@@ -261,11 +261,12 @@ const MermaidRenderer: React.FC<MermaidRendererProps> = ({ chart, id, showContro
   // If we have a cached result, set it immediately
   useEffect(() => {
     if (hasCachedResult && !hasInitializedRef.current && cachedEntry) {
+      console.log('[PR #261 Mermaid] ✅ Early cache hit for chart:', chartId.substring(0, 8));
       setSvg(cachedEntry.svg);
       setError(null);
       hasInitializedRef.current = true;
     }
-  }, [cacheKey, hasCachedResult, cachedEntry]);
+  }, [cacheKey, hasCachedResult, cachedEntry, chartId]);
 
   // Render chart immediately when component mounts (for dialog usage)
   useEffect(() => {
@@ -279,6 +280,7 @@ const MermaidRenderer: React.FC<MermaidRendererProps> = ({ chart, id, showContro
     // Check cache first
     const cachedEntry = chartCache.get(cacheKey);
     if (cachedEntry && (Date.now() - cachedEntry.timestamp < CACHE_EXPIRY_MS)) {
+      console.log('[PR #261 Mermaid] ✅ Cache hit for chart:', chartId.substring(0, 8));
       setSvg(cachedEntry.svg);
       setError(null);
       hasInitializedRef.current = true;
@@ -309,6 +311,7 @@ const MermaidRenderer: React.FC<MermaidRendererProps> = ({ chart, id, showContro
         if (currentRequest === renderRequestRef.current) {
           // Cache the result with timestamp
           chartCache.set(cacheKey, { svg: renderedSvg, timestamp: Date.now() });
+          console.log('[PR #261 Mermaid] ✅ Successfully rendered chart:', chartId.substring(0, 8), `(${Math.round(renderedSvg.length / 1024)}KB)`);
           setSvg(renderedSvg);
           hasInitializedRef.current = true;
         }