fix: disable ever-jobs sidecar by default for clean/fast HF startup

chore(06-01): update requirements.txt and start.sh for FastAPI launch

fix(platforms): visible ever-jobs sidecar status + Node20 ESM CommonJS fix

fix(hf): allow extensionless ESM imports in ever-jobs sidecar

fix(hf-spaces): use nest start (ts-node) instead of nest build to avoid webpack

fix(hf-spaces): build ever-jobs at image time, run compiled JS at startup

feat(hf-spaces): install Node.js, clone ever-jobs at build time, start NestJS before Streamlit