chore: import upstream snapshot with attribution

sample.env

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+# Database
+MONGOHQ_URL=mongodb://127.0.0.1:27017/freecodecamp?directConnection=true
+
+# Logging
+SENTRY_DSN=dsn_from_sentry_dashboard
+SENTRY_CLIENT_DSN=dsn_from_sentry_dashboard
+SENTRY_ENVIRONMENT=development
+SENTRY_SERVER_NAME=fcc-api
+SENTRY_TRACES_SAMPLE_RATE=0.1
+SENTRY_PROFILE_SESSION_SAMPLE_RATE=0.1
+SENTRY_LOGS_DEBUG_SAMPLE_RATE=0.05
+SENTRY_LOGS_INFO_SAMPLE_RATE=1.0
+
+# Auth0 - OAuth 2.0 Credentials
+AUTH0_CLIENT_ID=client_id_from_auth0_dashboard
+AUTH0_CLIENT_SECRET=client_secret_from_auth0_dashboard
+AUTH0_DOMAIN=example.auth0.com
+
+# Session, Cookie and JWT encryption strings
+SESSION_SECRET=a_thirty_two_plus_character_session_secret
+COOKIE_SECRET=a_cookie_secret
+JWT_SECRET=a_jwt_secret
+
+# Client Search Bar
+ALGOLIA_APP_ID=app_id_from_algolia_dashboard
+ALGOLIA_API_KEY=api_key_from_algolia_dashboard
+
+# Stripe
+STRIPE_PUBLIC_KEY=pk_from_stripe_dashboard
+STRIPE_SECRET_KEY=sk_from_stripe_dashboard
+
+# Third-party App API
+TPA_API_BEARER_TOKEN=tpa_api_bearer_token_from_dashboard
+
+# PayPal
+PAYPAL_CLIENT_ID=id_from_paypal_dashboard
+
+# Patreon
+PATREON_CLIENT_ID=id_from_patreon_dashboard
+
+# Analytics
+GROWTHBOOK_URI=api_URI_from_Growthbook_dashboard
+GROWTHBOOK_FASTIFY_API_HOST=fastify_api_sdk_api_host_from_growthbook_dashboard
+GROWTHBOOK_FASTIFY_CLIENT_KEY=fastify_api_sdk_client_key_from_growthbook_dashboard
+
+# Socrates (AI-powered hints)
+SOCRATES_API_KEY=something
+SOCRATES_ENDPOINT=https://localhost:4000
+
+# Application paths
+HOME_LOCATION=http://localhost:8000
+API_LOCATION=http://localhost:3000
+FORUM_LOCATION=https://forum.freecodecamp.org
+NEWS_LOCATION=https://www.freecodecamp.org/news
+RADIO_LOCATION=https://coderadio.freecodecamp.org
+
+# ---------------------
+# Build variants
+# ---------------------
+DEPLOYMENT_ENV=staging
+FREECODECAMP_NODE_ENV=development
+
+# Languages to build
+CLIENT_LOCALE=english
+CURRICULUM_LOCALE=english
+
+# Show or hide WIP in progress challenges
+SHOW_UPCOMING_CHANGES=false
+
+# ---------------------
+# New API
+# ---------------------
+FCC_ENABLE_SWAGGER_UI=true
+FCC_ENABLE_DEV_LOGIN_MODE=true
+FCC_ENABLE_SHADOW_CAPTURE=false
+FCC_ENABLE_SENTRY_ROUTES=false
+FCC_ENABLE_CLASSROOM=false
+FCC_API_LOG_LEVEL=info
+FCC_API_LOG_TRANSPORT=pretty
+
+# Email
+# use ses in production, nodemailer for local development (with Mailpit)
+EMAIL_PROVIDER=nodemailer
+# SES SMTP credentials (required in production)
+# Generate these from AWS IAM: https://docs.aws.amazon.com/ses/latest/dg/smtp-credentials.html
+SES_SMTP_USERNAME=
+SES_SMTP_PASSWORD=ses_smtp_password_from_aws
+SES_SMTP_HOST=email-smtp.us-east-1.amazonaws.com
+
+# ---------------------
+# Client
+# ---------------------
+# Set to true if the Gatsby schema needs to be updated. E.g. you've added a new
+# challenge property. After updating the schema (via pnpm develop) you can
+# commit the changed schema and set this back to false.
+GATSBY_UPDATE_SCHEMA_SNAPSHOT=false