feat: persist learning map images and upload skill

.codex/skills/learning-map-upload/scripts/upload_learning_image.sh

@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+if [ "$#" -ne 2 ]; then
+  echo "用法: $0 <source-image> <target-filename>" >&2
+  exit 2
+fi
+
+SRC="$1"
+NAME="$2"
+IMG_DIR="/home/ittoview/src/data/image"
+BASE_URL="https://itto.topwind.top/learning-images/"
+
+if [ ! -f "$SRC" ]; then
+  echo "源文件不存在: $SRC" >&2
+  exit 1
+fi
+
+mkdir -p "$IMG_DIR"
+cp "$SRC" "$IMG_DIR/$NAME"
+
+echo "--- 本地目录确认 ---"
+ls -lh "$IMG_DIR/$NAME"
+
+echo "--- 公网线上挂载目录确认 ---"
+HTML="$(curl -sS --max-time 8 "$BASE_URL")"
+NUMBER_PREFIX="${NAME%%-*}-"
+if printf '%s\n' "$HTML" | grep -F "$NAME" >/dev/null || printf '%s\n' "$HTML" | grep -F "$NUMBER_PREFIX" >/dev/null; then
+  printf '%s\n' "$HTML" | grep -F "$NAME" || printf '%s\n' "$HTML" | grep -F "$NUMBER_PREFIX"
+  echo "线上可见: $NAME"
+else
+  echo "线上未确认可见: $NAME" >&2
+  exit 1
+fi