feat: prevent 3-second exits + result analysis script

fix: retry preflight check on rate limit (429)

fix: tarball fallback when git not available in container

fix: strategy hint shows accurate builder budget, not total timeout

feat: add 8 TB2-related skills from benchflow-ai/skillsbench

feat: non-interactive mode for terminal profile

feat: add web_search and web_fetch tools

fix: also print trace to stderr for Harbor log capture

fix: trace writer falls back to harness dir if workspace not writable

fix: fallback to wget/apt-get curl when curl missing

fix: use standalone python from GitHub instead of apt-get

feat: vendor openai wheels for fully offline install

feat: planner does task decomposition with [DELEGATE] markers

feat: difficulty-aware strategy hints with delegate_task guidance

feat: dynamic time allocation across planner/builder/evaluator