feat: add 'i' alias for init command

• Add 'i' alias to init command for faster access
• Update README to document init|i alias usage
• Maintains consistency with existing commit|c alias

Author: SatanshuMishra

README.md

@@ -92,6 +92,7 @@ Initialize Labcommitr configuration in your project. This creates a `.labcommitr
 **Usage:**
 ```bash
 lab init [options]
+lab i [options]  # Short alias
 ```
 
 **Options:**

src/cli/commands/init/index.ts

@@ -62,6 +62,7 @@ function configExists(projectRoot: string): boolean {
  */
 export const initCommand = new Command("init")
   .description("Initialize labcommitr configuration in your project")
+  .alias("i")
   .option("-f, --force", "Overwrite existing configuration")
   .option(
     "--preset <type>",