Fix hardhat init command and regenerate AI files

Change npx hardhat init to npx hardhat --init for correct
initialization syntax.

Author: brunopgalvao

.ai/categories/infrastructure.md

@@ -6180,7 +6180,7 @@ Before setting up Hardhat, make sure the following are installed:
         yarn add --dev hardhat@^2.27.0 @nomicfoundation/hardhat-toolbox
 
         # Initialize a Hardhat project
-        npx hardhat init
+        npx hardhat --init
         ```
 
 3. You will be prompted to select certain configurations for your project. To quickly create a working setup, you can accept the default answers, which will create a JavaScript project, initialize it in the current directory, add a `.gitignore`, and install all dependencies.

.ai/categories/smart-contracts.md

@@ -6240,7 +6240,7 @@ Before setting up Hardhat, make sure the following are installed:
         yarn add --dev hardhat@^2.27.0 @nomicfoundation/hardhat-toolbox
 
         # Initialize a Hardhat project
-        npx hardhat init
+        npx hardhat --init
         ```
 
 3. You will be prompted to select certain configurations for your project. To quickly create a working setup, you can accept the default answers, which will create a JavaScript project, initialize it in the current directory, add a `.gitignore`, and install all dependencies.

.ai/categories/tooling.md

@@ -57,7 +57,7 @@ Before setting up Hardhat, make sure the following are installed:
         yarn add --dev hardhat@^2.27.0 @nomicfoundation/hardhat-toolbox
 
         # Initialize a Hardhat project
-        npx hardhat init
+        npx hardhat --init
         ```
 
 3. You will be prompted to select certain configurations for your project. To quickly create a working setup, you can accept the default answers, which will create a JavaScript project, initialize it in the current directory, add a `.gitignore`, and install all dependencies.