feat: The Other Dude v9.0.1 — full-featured email system

ci: add GitHub Pages deployment workflow for docs site

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.env.staging.example

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+# .env.staging -- Copy to .env.staging and fill in values
+# DO NOT commit this file to git
+
+ENVIRONMENT=staging
+LOG_LEVEL=info
+DEBUG=false
+
+# Database
+POSTGRES_DB=mikrotik
+POSTGRES_USER=postgres
+POSTGRES_PASSWORD=CHANGE_ME_STAGING
+
+DATABASE_URL=postgresql+asyncpg://postgres:CHANGE_ME_STAGING@postgres:5432/mikrotik
+SYNC_DATABASE_URL=postgresql+psycopg2://postgres:CHANGE_ME_STAGING@postgres:5432/mikrotik
+APP_USER_DATABASE_URL=postgresql+asyncpg://app_user:CHANGE_ME_STAGING@postgres:5432/mikrotik
+
+# Poller database (different role, no RLS)
+POLLER_DATABASE_URL=postgres://poller_user:poller_password@postgres:5432/mikrotik
+
+# Redis
+REDIS_URL=redis://redis:6379/0
+
+# NATS
+NATS_URL=nats://nats:4222
+
+# Security -- generate unique values for staging
+# JWT:    python3 -c "import secrets; print(secrets.token_urlsafe(64))"
+# Fernet: python3 -c "import secrets, base64; print(base64.b64encode(secrets.token_bytes(32)).decode())"
+JWT_SECRET_KEY=CHANGE_ME_STAGING
+CREDENTIAL_ENCRYPTION_KEY=CHANGE_ME_STAGING
+
+# First admin bootstrap
+FIRST_ADMIN_EMAIL=admin@mikrotik-portal.staging
+FIRST_ADMIN_PASSWORD=CHANGE_ME_STAGING
+
+# CORS (staging URL)
+CORS_ORIGINS=http://localhost:3080
+
+# Git store path
+GIT_STORE_PATH=/data/git-store
+
+# Firmware
+FIRMWARE_CACHE_DIR=/data/firmware-cache