# ── Transport ──────────────────────────────────────────────────────────
# MCP_TRANSPORT_TYPE=stdio          # stdio | http (default: stdio)
# MCP_HTTP_PORT=3010                # HTTP port (default: 3010)
# MCP_HTTP_HOST=localhost           # HTTP host (default: localhost)
# MCP_HTTP_ENDPOINT_PATH=/mcp      # HTTP endpoint path (default: /mcp)
# MCP_PUBLIC_URL=                  # Public origin behind a TLS-terminating proxy (e.g. https://mcp.example.com)
# MCP_ALLOWED_ORIGINS=             # Comma-separated browser Origins for HTTP mode. Unset = loopback-only (localhost/127.0.0.1/[::1]). Use '*' to disable Origin checks (not recommended).

# ── Auth ──────────────────────────────────────────────────────────────
# MCP_AUTH_MODE=none                # none | jwt | oauth (default: none)
# MCP_AUTH_SECRET_KEY=              # JWT secret (required for jwt mode)

# ── Storage ───────────────────────────────────────────────────────────
# STORAGE_PROVIDER_TYPE=in-memory   # in-memory | filesystem | supabase | cloudflare-r2 | cloudflare-kv | cloudflare-d1

# ── Session ──────────────────────────────────────────────────────────
# MCP_SESSION_MODE=stateful         # stateful | stateless (default: stateful)

# ── Logging ───────────────────────────────────────────────────────────
# MCP_LOG_LEVEL=info                # debug | info | notice | warning | error

# ── Telemetry ─────────────────────────────────────────────────────────
# OTEL_ENABLED=false                          # Enable OpenTelemetry (default: false)
# OTEL_EXPORTER_OTLP_ENDPOINT=               # OTLP endpoint URL (e.g., http://localhost:4318)

# ── Mailchimp ─────────────────────────────────────────────────────────
# Required. Generate in Mailchimp → Account → Extras → API keys.
# The "-dc" suffix (e.g. -us22) identifies your data center — keep it intact.
MAILCHIMP_API_KEY=abc123def456ghi789jkl012mno345pq-us22

# Optional overrides
# MAILCHIMP_BASE_URL=                 # Override base URL (default: https://{dc}.api.mailchimp.com/3.0)
# MAILCHIMP_TIMEOUT_MS=60000          # Per-request timeout in ms (default: 60000)
# MAILCHIMP_MAX_RETRIES=3             # Retry attempts for transient failures (default: 3)
# MAILCHIMP_CONCURRENCY_LIMIT=4       # Max parallel requests per workflow tool (default: 4)

# Optional: local-assets directory (L1)
# When set (Node-only — Workers ignored), the `mailchimp_assets` tool is registered
# and any `@assets/<path>` references in campaign HTML are auto-uploaded to Mailchimp
# File Manager and rewritten to the public CDN URL at send time. Cache lives at
# <assetsDir>/.mailchimp-cache.json (sha256-keyed; safe to delete to force re-upload).
# MAILCHIMP_ASSETS_DIR=/absolute/path/to/your/email-assets

# Optional: local-templates directory (L2)
# When set (Node-only), the `mailchimp_local_templates` tool is registered and
# campaigns can reference `content.localTemplate: '<name>'`. Templates are `.eta`
# files with optional `<name>.meta.yaml` sidecars (subject, previewText). Partials
# live alongside and are referenced via Eta's `include()`. This is the canonical
# write path for templates on free-tier Mailchimp accounts (where the upstream
# templates API is read-only).
# MAILCHIMP_TEMPLATES_DIR=/absolute/path/to/your/email-templates