test: comprehensive validation & fuzz testing with bug fixes

fix: robust Foldseek parsing, add logging, handle missing results key and variant target formats

fix: Foldseek alignments are [dict] lists, parse target format

fix: debug alignment structure types

fix: debug Foldseek result structure

fix: Foldseek alignments are dicts, parse with .get() correctly

fix: debug Foldseek alignment format (list vs dict)

fix: add full traceback to Foldseek error

fix: use aiohttp for Foldseek multipart upload

fix: debug Foldseek submit response type

fix: use sync httpx in thread pool for Foldseek submit

fix: restore nested alignments loop, remove debug raw

fix: return raw Foldseek data for debugging

fix: Foldseek returns list directly, no alignments sub-key

fix: move fetch inside httpx async with block

fix: manual multipart for Foldseek, add secrets import

fix: use sync httpx.Client for Foldseek multipart upload

fix: add error detail to Foldseek, use bytes, longer timeout

fix: simplify Foldseek integration, use full PDB, encode as bytes

fix: primer error handling, interactions scores, structure comparison API

feat: domains, interactions, primers, structure analysis, wizard, phylo tree, conservation