feat: implement CLI for XBRL parsing and validation

- Parse command with optional stats flag
- Validate command with SEC EDGAR profile support
- Benchmark command for performance testing
- Colored output for better UX

examples/parse.rs

@@ -0,0 +1,27 @@
+//! Basic parsing example
+
+use crabrl::Parser;
+use std::env;
+
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let args: Vec<String> = env::args().collect();
+    if args.len() != 2 {
+        eprintln!("Usage: {} <xbrl-file>", args[0]);
+        std::process::exit(1);
+    }
+
+    let parser = Parser::new();
+    let doc = parser.parse_file(&args[1])?;
+    
+    println!("Parsed {} successfully", args[1]);
+    println!("  Facts: {}", doc.facts.len());
+    println!("  Contexts: {}", doc.contexts.len());
+    println!("  Units: {}", doc.units.len());
+    
+    // Show first 5 facts
+    for fact in doc.facts.iter().take(5) {
+        println!("  - {}: {}", fact.name, fact.value);
+    }
+    
+    Ok(())
+}