fix(mindspace): keep standalone service data paths under MindSpace root

Prevent Portal .env from overriding MindSpace storage/users roots, and
set launchd env plus runtime docs to use /Users/john/MindSpace paths.

Co-authored-by: Cursor <cursoragent@cursor.com>

scripts/release-mindspace-service-prod.sh

@@ -279,6 +279,10 @@ cat > "${SERVICE_PLIST}" <<EOF
     <string>8082</string>
     <key>MINDSPACE_SERVICE_HOST</key>
     <string>127.0.0.1</string>
+    <key>MINDSPACE_STORAGE_ROOT</key>
+    <string>${APP_DIR}/data/mindspace</string>
+    <key>H5_USERS_ROOT</key>
+    <string>${APP_DIR}/users</string>
     <key>MINDSPACE_SERVICE_AGENT_WORKER_ENABLED</key>
     <string>true</string>
     <key>MINDSPACE_SERVICE_WORKSPACE_MAINTENANCE</key>
@@ -306,6 +310,7 @@ mv "${NEW_DIR}" "${APP_DIR}"
 APP_MOVED=1
 
 say "启动 MindSpace service"
+mkdir -p "${APP_DIR}/data/mindspace" "${APP_DIR}/users"
 launchctl bootstrap "${LAUNCHD_GUI}" "${SERVICE_PLIST}" >/dev/null 2>&1 || true
 launchctl enable "${LAUNCHD_GUI}/${SERVICE_LABEL}" >/dev/null 2>&1 || true
 launchctl kickstart -k "${LAUNCHD_GUI}/${SERVICE_LABEL}" >/dev/null 2>&1 || true