Remove Terraform configurations and utility scripts

[bsubhamay]

This pull request adds three new skill documentation files for AWS configuration in the context of the Customer 360 / NorthBridge Snowflake pipeline. Each skill provides detailed guidance, schema references, and best practices for configuring AWS S3, IAM roles and policies, and trust relationships in Terraform-based infrastructure-as-code setups. The documentation includes current and target config examples, field explanations, common mistakes, and rules for secure and maintainable AWS resource management.

The most important changes are:

New AWS Skill Documentation

• Added .claude/skills/aws-config-iam-policies/SKILL.md to document authoring, editing, and validating the aws.iam block for IAM role and policy management, including required permissions, schema, resource tokens, and least-privilege guidance.
• Added .claude/skills/aws-config-s3/SKILL.md to document the aws.s3 block for S3 bucket configuration, including schema, naming rules, KMS integration, lifecycle rules, and remote state backend setup.
• Added .claude/skills/aws-config-trust/SKILL.md to document trust configuration for IAM roles, focusing on the aws.iam block in the platform config, with schema, resource tokens, required policies, and common errors.

Content Highlights

• Each skill file provides both current and target configuration examples, explains the rationale for changes, and lists common mistakes to avoid for robust AWS and Snowflake integration. [1] [2] [3]
• The documentation is tailored for real-world infrastructure-as-code workflows, emphasizing environment portability, security best practices, and operational reliability. [1] [2] [3]- Deleted package.json and all Terraform configuration files including backends.tf, data.tf, locals.tf, main.tf, outputs.tf, providers.tf, terraform.tfvars, and variables.tf.

• Removed utility scripts and console test examples from utils directory.