Add Doris Schoolhouse and clean pending homelab changes

home/doris-schoolhouse/bin/test-recording-handoff.sh

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+set -euo pipefail
+if [ "$#" -lt 2 ]; then
+  echo "usage: $0 <file> <class_name>" >&2
+  exit 1
+fi
+FILE="$1"
+CLASS_NAME="$2"
+TARGET="${N8N_BASE_URL:-https://n8n.example.com}${SCHOOLHOUSE_N8N_RECORDING_WEBHOOK:-/webhook/class/upload}"
+cat <<MSG
+Dry-run recording handoff preview
+Target: $TARGET
+Command:
+curl -X POST "$TARGET" \\
+  -F "data=@$FILE" \\
+  -F "class_name=$CLASS_NAME" \\
+  -F "lecture_title=${CLASS_NAME} Recording" \\
+  -F "source=doris-schoolhouse"
+MSG