Storyline 3 (极客张): - 3.4 PASS: SaaS Relay SSE chain verified - 3.6 FAIL: BUG-009 confirmed - middleware chain bypassed - Others NOT TESTED: require Tauri kernel local mode Storyline 4 (妈妈): - 4.1 PASS: simple mode UI + message flow - Others SKIP/NOT TESTED: voice input, cold start Sign-off report updated with full test matrix and release recommendation. Blocking: BUG-009 (DataMasking bypass in SaaS Relay mode)