Initial TypeScript event calendar service

.env.example

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+PORT=3000
+DB_PATH=./data/events.sqlite
+
+# Apprise API service
+apprise_host=apprise
+apprise_port=80
+apprise_https=false
+notification_mock=false
+
+# Private ntfy server
+ntfy_host=ntfy.example.com
+ntfy_topic=77th-events
+ntfy_username=
+ntfy_password=
+
+# Discord incoming webhook; use WEBHOOK_ID/WEBHOOK_TOKEN or the full HTTPS URL
+# dc_webhook=WEBHOOK_ID/WEBHOOK_TOKEN
+discord_botname=77th Event Calendar
+discord_avatar_url=
+discord_href=