Deploy: Add Terraform configuration and infrastructure setup for Digital Ocean

[ByteMeDirk]

No description provided.

[Copilot]

Pull Request Overview

This PR introduces Terraform-based infrastructure setup for Digital Ocean, extracts API key retrieval into a dedicated function, and updates related documentation and CI tooling.

• Add Terraform configuration files (main.tf, variables.tf, database.tf, outputs.tf) and example tfvars
• Extract get_newsapi_key from get_db_config in env.py
• Update documentation (INFRASTRUCTURE.md, DEPLOYMENT.md, README.md) and streamline CI configs

Reviewed Changes

Copilot reviewed 14 out of 15 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
semantic_medallion_data_platform/config/env.py	Move NewsAPI key retrieval into its own function
infrastructure/terraform/variables.tf	Define variables for Digital Ocean provider
infrastructure/terraform/terraform.tfvars.example	Provide example tfvars for user configuration
infrastructure/terraform/outputs.tf	Define Terraform outputs for DB connection details
infrastructure/terraform/main.tf	Configure Terraform provider for Digital Ocean
infrastructure/terraform/database.tf	Define PostgreSQL resources on Digital Ocean
docs/INFRASTRUCTURE.md	Document Terraform setup and resources
docs/DEPLOYMENT.md	Document deployment steps including Terraform and app setup
README.md	Add Terraform setup section and update tech stack
.pre-commit-config.yaml	Comment out large file check in pre-commit hooks
.github/workflows/pr-tests.yml	Add GitHub Actions workflow for PR tests
.github/workflows/ci-cd.yml	Remove deprecated CI/CD pipeline file

Files not reviewed (1)

• infrastructure/terraform/.terraform.lock.hcl: Language not supported

Comments suppressed due to low confidence (2)

README.md:33

• The README references a setup.sh script under infrastructure/terraform/ that isn't present in the repo. Either add the script or remove the entry.

│   └── terraform/                # Terraform configuration for Digital Ocean

infrastructure/terraform/terraform.tfvars.example:12

• [nitpick] The example uses semantic-data-platform with dashes, but the default project_name is Semantic Data Platform. Align naming formats to avoid confusion.

# project_name = "semantic-data-platform"