fix(harness): stream sandbox uploads through tar#1881

guslegend0510 wants to merge 9 commits into

agentscope-ai:mainagentscope-ai/agentscope-java:mainfrom

guslegend0510:fix/issue-1876-sessiontree-upload-targuslegend0510/agentscope-java:fix/issue-1876-sessiontree-upload-tarCopy head branch name to clipboard