Jul 28 - Update the demo request button, and add demo registration page

.env.example

@@ -7,9 +7,37 @@ DB_NAME=jqc_features
 # Or set a full URI and it overrides the parts above:
 # DATABASE_URL=mysql+pymysql://user:pass@127.0.0.1:3306/jqc_features?charset=utf8mb4
 
-# Target for the "Request a demo" button
+# Fallback "email us directly" link shown under the booking form
 DEMO_CONTACT_URL=mailto:info@ltservicesinc.com
 
+# --- Demo appointments (/demo) ---
+# Owner notification address. Blank -> no mail, requests still land in /admin/demos.
+DEMO_NOTIFY_EMAIL=info@ltservicesinc.com
+# Email the customer a confirmation copy too (1/0)
+DEMO_CONFIRM_CUSTOMER=1
+# Bookable window and slot size
+DEMO_HOUR_START=8
+DEMO_HOUR_END=17
+DEMO_SLOT_MINUTES=30
+DEMO_MAX_DAYS_AHEAD=90
+DEMO_TIMEZONE_LABEL=Eastern Time
+# Max form submissions per IP per hour (per gunicorn worker)
+DEMO_RATE_LIMIT=5
+
+# --- Outgoing mail (SMTP). Leave SMTP_HOST blank to disable mail entirely. ---
+SMTP_HOST=
+SMTP_PORT=587
+SMTP_USER=
+SMTP_PASSWORD=
+# STARTTLS on port 587:
+SMTP_USE_TLS=1
+# Implicit TLS on port 465 (set SMTP_USE_TLS=0 if you use this):
+SMTP_USE_SSL=0
+SMTP_TIMEOUT=20
+# From address; defaults to SMTP_USER when blank
+MAIL_FROM=
+MAIL_SUBJECT_PREFIX=[JQC]
+
 # --- Admin panel ---
 # Sign session cookies + CSRF tokens. Generate:  python3 -c "import secrets; print(secrets.token_hex(32))"
 SECRET_KEY=change_me_to_a_long_random_string