The soccer plugin uses dotted keys like "eng.1" for league identifiers.
PR #260 fixed backend helpers but the JS frontend still corrupted these
keys by naively splitting on dots. This fixes both the JS and remaining
Python code paths:
- JS getSchemaProperty(): greedy longest-match for dotted property names
- JS dotToNested(): schema-aware key grouping to preserve "eng.1" as one key
- Python fix_array_structures(): remove broken prefix re-navigation in recursion
- Python ensure_array_defaults(): same prefix navigation fix
Closes#254
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
