Three root causes caused partner_mismatch=1 to loop indefinitely:
1. No-CUI company orders (is_pj=1, no cod_fiscal): old code flagged as
mismatch every cycle. Fixed by requiring new_cf to be non-null for
PF→PJ detection. Stale flags from old code cleared via new
clear_stale_partner_mismatches_no_cui() for out-of-window orders.
2. same_partner resync path did not update cod_fiscal_gomag in SQLite.
On next cycle GoMag returned a CUI but stored_cf was still NULL →
re-detected as mismatch. Fixed by also calling update_partner_resync_data
(not just update_partner_mismatch_batch) in the same_partner branch.
3. GoMag sends CUI with space: 'RO 17922480'. The _strip_ro() regex
^RO left the space → ' 17922480' != '17922480' → false mismatch.
Fixed: changed regex to ^RO\s* and added .strip().
Also adds diagnostic logger.info lines for mismatch detection/resync counts.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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