Sync Portaly donation notification emails (Gmail) into the supporters SSOT via canonical SUPPORTERS-PIPELINE — checkpoint from last_fetched, read full email bodies (never snippets, since amount/monthly-type can be truncated), dry-run before write, regen the two privacy-partitioned derived views for /about#sponsors, verify no cross-layer privacy leak before commit. TRIGGER when: user says "抓贊助", "更新贊助者", "跑 Portaly", "supporters sync", or routine `twmd-supporters-weekly` fires.