Revert "docs(env): sync .env.self-host.example with missing variables"

This reverts commit 1c1c95d332.

.env.self-host.example

@@ -8,15 +8,6 @@
 DB_PASSWORD=changeme123
 JWT_SECRET=
 
-# The variables below are auto-configured by Docker Compose using DB_PASSWORD
-# above. Override only when pointing at an external database / Redis or when
-# running the app outside of the bundled Compose stack.
-# NODE_ENV=production
-# DATABASE_URL=postgresql://plunk:${DB_PASSWORD}@postgres:5432/plunk
-# DIRECT_DATABASE_URL=postgresql://plunk:${DB_PASSWORD}@postgres:5432/plunk
-# REDIS_URL=redis://redis:6379
-# PORT=8080
-
 # ========================================
 # REQUIRED: Domains
 # ========================================
@@ -76,16 +67,6 @@ GITHUB_OAUTH_SECRET=
 GOOGLE_OAUTH_CLIENT=
 GOOGLE_OAUTH_SECRET=
 
-# ========================================
-# OPTIONAL: Stripe (Billing)
-# ========================================
-# Enables paid billing. All variables must be set together for billing to activate.
-STRIPE_SK=
-STRIPE_WEBHOOK_SECRET=
-STRIPE_PRICE_ONBOARDING=
-STRIPE_PRICE_EMAIL_USAGE=
-STRIPE_METER_EVENT_NAME=emails
-
 # ========================================
 # OPTIONAL: File Storage (Minio)
 # ========================================
@@ -106,14 +87,6 @@ S3_BUCKET=uploads
 S3_PUBLIC_URL=http://localhost:9000/uploads
 S3_FORCE_PATH_STYLE=true
 
-# ========================================
-# OPTIONAL: Attachments
-# ========================================
-# Limits applied to attachments on transactional emails.
-# AWS SES caps total message size at 40 MB; the defaults below leave headroom.
-# MAX_ATTACHMENT_SIZE_MB=10
-# MAX_ATTACHMENTS_COUNT=10
-
 # ========================================
 # OPTIONAL: Notifications (ntfy.sh)
 # ========================================
@@ -144,11 +117,6 @@ NTFY_URL=http://ntfy/plunk-notifications
 # Optional if using PEM files
 SMTP_DOMAIN=smtp.example.com
 
-# Explicitly enable SMTP features in the UI. Automatically enabled when
-# SMTP_DOMAIN is set to a non-localhost value in production.
-# Default: false
-# SMTP_ENABLED=false
-
 # SMTP Ports (defaults work for most setups)
 # PORT_SECURE=465         # SMTPS (implicit TLS)
 # PORT_SUBMISSION=587     # SMTP Submission (STARTTLS)
@@ -184,25 +152,6 @@ SMTP_DOMAIN=smtp.example.com
 # Default: false
 # DISABLE_SIGNUPS=false
 
-# When enabled (true), validates emails on signup — checks for disposable
-# domains, plus-addressing, domain existence, and MX records.
-# Default: false
-# VERIFY_EMAIL_ON_SIGNUP=false
-
-# ========================================
-# OPTIONAL: Phishing Detection
-# ========================================
-# Plunk can use an LLM (via OpenRouter) to detect phishing emails before sending.
-# When enabled, a random sample of outgoing emails is analyzed and projects can
-# be auto-disabled if confidence exceeds the threshold or the cumulative count
-# is reached within the window.
-# OPENROUTER_API_KEY=
-# OPENROUTER_MODEL=anthropic/claude-3-haiku
-# PHISHING_DETECTION_SAMPLE_RATE=0.1
-# PHISHING_CONFIDENCE_THRESHOLD=95
-# PHISHING_CUMULATIVE_THRESHOLD=3
-# PHISHING_CUMULATIVE_WINDOW_MS=3600000
-
 # ========================================
 # OPTIONAL: SES Sending Rate
 # ========================================