Jimi's integration push API (tracksolidprodocs.jimicloud.com) sends
Content-Type: application/json with body {"token":"...","data_list":[...]},
not form-encoded. FastAPI Form() silently defaulted to "" so all pushes
were discarded with "Failed to parse data_list:" warnings.
Replaces per-endpoint Form() params with a shared _parse_request() helper
that tries JSON body first, falls back to form-encoded. All seven push
endpoints (pushobd, pushfaultinfo, pushalarm, pushgps, pushhb,
pushtripreport, pushevent) updated.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
