Root causes found for Tempo worklogs never reaching Tempo:
1. Wrong API region: workspace is on api.eu.tempo.io/4 but code used api.tempo.io/4
→ Tempo returned "User is invalid" (400) for all POST /worklogs
2. Trailing space in jira_account_id stored in DB (now stripped with .strip())
3. tempo_synced field was never updated even on success (now set from Tempo response)
Fix: add tempo.base_url system_config key (admin-configurable without redeploy),
fall back to TEMPO_BASE_URL env-var, then global default. DB already updated with
https://api.eu.tempo.io/4 for this workspace.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>