feat: support check-related features (#162)

We can run `argc check` to ensure that everything is ready (environment variables, Node/Python dependencies, mcp-bridge server)

docs/argcfile.md

@@ -16,7 +16,7 @@ argc -h                                     # Print help information
 argc <command> -h                           # Print help information for <command>
 
 # -------- Build --------
-# Build
+# Build all
 argc build
 
 # Build all tools
@@ -29,6 +29,20 @@ argc build@agent
 # Build specific agents
 argc build@agent coder todo
 
+# -------- Check --------
+# Check all
+argc check
+
+# Check all tools
+argc check@tool 
+# Check specific tools
+argc check@tool get_current_weather.sh execute_command.sh 
+
+# Check all agents
+argc check@agent 
+# Check specific agents
+argc check@agent coder todo
+
 # -------- Run --------
 # Run tool
 argc run@tool get_current_weather.sh '{"location":"London"}'