p10-1A-1 (PR #139) added SearchFilters.code_lang + .repo fields and the CLI
--code-lang / --repo flags propagate them correctly into SearchFilters, but
neither the lexical retriever's FTS SQL nor the shared filter_chunks helper
(used by the vector retriever) ever applied them — so a code-lang-filtered
search returned all-doc hits (markdown / pdf / code mixed).
Discovered while dogfooding p10-1B with httpx + zod + lodash clones:
`kebab search 'AsyncClient' --code-lang python --json` returned markdown
hits from httpx/docs/ first.
Fix: add IN-list filters on json_extract(d.metadata_json, '$.code_lang')
and '$.repo' to both lexical.rs and filters.rs, mirroring the existing
media filter pattern. Two regression tests added in each crate covering
the new filter behavior.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
