Add SWE/Terminal Bench trajectory replay

test: HTTPS LFS upload of 50MB object

Add DeepSeek V4 Flash trajectory cache

Replay only completed trajectory commands

Run golden regression as concurrent Harbor job

Run trajectory replay as concurrent Harbor job

Keep golden solution timeout within RLI limit

Add standalone SWE trajectory replay

fix: apply concurrency limit to judge phase

harden PAM integration: fail-fast, openai concurrency/timeout, external meta-override, incremental output