58fcb04ce4
Second pass on docs/ cleanup (item #15 in STATUS.md): - pfi/chromadb-setup.md: deleted. References configs/pfi-ana/... and scripts/setup-chromadb.sh, neither of which exist in this repo (artifacts of an earlier project layout). ChromaDB is already live per docker-stack.md; the operational truth lives there. - pfi/docker-stack.md: removed the cross-link to the deleted file and pulled the bit of useful content from it (auth-token generation + client Settings example) into the inline ChromaDB section. - pfi/vm-102-matrix-{synapse,appservice}.md: stripped the YAML frontmatter. The `path:` values pointed at docs/pfi-ana/... which doesn't exist in this repo; no toolchain consumed the metadata. - README.md: tree updated to reflect the deletion. VM-102 docs kept separate by design — each is right-sized; merging would push past the ~500-line guideline.