Add configurable timezone support with environment variables

.env.example

@@ -0,0 +1,18 @@
+# SLMM Configuration
+# Copy this file to .env and customize as needed
+
+# Timezone Configuration
+# Set the timezone offset from UTC (in hours)
+# Examples:
+#   -5 = EST (Eastern Standard Time)
+#   -4 = EDT (Eastern Daylight Time)
+#    0 = UTC
+#   +1 = CET (Central European Time)
+#  -8 = PST (Pacific Standard Time)
+TIMEZONE_OFFSET=-5
+
+# Optional: Timezone name for logging (cosmetic only)
+TIMEZONE_NAME=EST
+
+# CORS Configuration (comma-separated list of allowed origins)
+CORS_ORIGINS=*