refactor(terraform): Implement Consistent Naming and Tagging Conventions

[carlagesa]

To improve resource identification, cost allocation, and automation, we need to enforce a consistent naming and tagging strategy for all resources created by Terraform. We should define a clear convention and apply it across our configuration. This makes our infrastructure more predictable and easier to manage.

Acceptance Criteria:

• A locals block is created to define standard tags (e.g., project, environment, managed-by).
• A clear naming convention is established and documented (e.g., project-environment-resource-name).
• All resources in the existing Terraform configuration are updated to use the new naming convention.
• All resources are updated to include the standard set of tags.