docs-old files

This index covers 6 source-grounded paths. Search matches file and directory names through D1 FTS5/BM25.

• docs-old/input-filter.md
• docs-old/output-api.md
• docs-old/parameter-parsing-api.md
• docs-old/self-contained-extensions.md
• docs-old/streams.md
• docs-old/unix-build-system.md