Add cloud infrastructure for AWS and GCP deployment

.github/workflows/aws-deploy.yml

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+name: Deploy to AWS
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+  workflow_dispatch:
+
+env:
+  AWS_REGION: us-east-1
+  TERRAFORM_VERSION: 1.6.0
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build backend image
+        uses: docker/build-push-action@v5
+        with:
+          context: ./backend
+          load: true
+          tags: devops-backend:build
+
+      - name: Build frontend image
+        uses: docker/build-push-action@v5
+        with:
+          context: ./frontend
+          load: true
+          tags: devops-frontend:build

.github/workflows/gcp-deploy.yml

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+name: Deploy to GCP
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+  workflow_dispatch:
+
+env:
+  GCP_REGION: us-central1
+  TERRAFORM_VERSION: 1.6.0
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build backend image
+        uses: docker/build-push-action@v5
+        with:
+          context: ./backend
+          load: true
+          tags: devops-backend:build
+
+      - name: Build frontend image
+        uses: docker/build-push-action@v5
+        with:
+          context: ./frontend
+          load: true
+          tags: devops-frontend:build

.gitignore

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+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+pip-wheel-metadata/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# Virtual Environment
+venv/
+env/
+ENV/
+env.bak/
+venv.bak/
+
+# Node.js
+node_modules/
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.npm
+.yarn-integrity
+
+# Next.js
+.next/
+out/
+*.tsbuildinfo
+next-env.d.ts
+
+# Terraform
+*.tfstate
+*.tfstate.*
+*.tfvars
+*.tfvars.json
+.terraform/
+.terraform.lock.hcl
+crash.log
+crash.*.log
+*.log
+*.backup
+*.backup.*
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Secrets
+*.pem
+*.key
+*.crt
+*.cer
+credentials.json
+*.json
+
+# Backend
+backend/app/__pycache__/
+backend/venv/
+
+# Frontend
+frontend/.next/
+frontend/node_modules/
+
+# Infrastructure
+infrastructure/.terraform/
+infrastructure/*.tfstate
+infrastructure/*.tfstate.*
+
+# Local environment files
+.env
+.env.local
+.env.*.local
+
+# Terraform lock files (optional - can be committed for reproducibility)
+# *.lock.hcl