Build AIEWF 2024 RAG stacks

Action playbook from eight AI Engineer / World's Fair talks. Do not summarize talks — pick a workflow and execute it.

Supporting files (read when needed):

• workflows.md — workflows A–H (steps, deliverables, stop conditions)
• source-index.md — src-NNN → talk learnings in ingest-into-skills

Optional: {SKILL_OUTPUT_DIR}/build-aiewf-2024-rag/

Step 0 — Pick workflow

Use the decision tree below. Open the matching section in workflows.md.