v1.4.0 — CARSI publisher SSO, unified login, code quality

New Features

CARSI Publisher SSO (14 publishers)

• Wiley, Elsevier, Springer, ACS, IEEE, Nature, Science, ACM, RSC, IOP, APS, AIP, Oxford, Tandfonline
• Unified SSO config module (publisher_strategies.py)
• scansci_pdf_carsi_login / scansci_pdf_carsi_status

Zero-Config Download

• scansci_pdf_smart_download — one-click download with auto Tor + all sources
• scansci_pdf_login — unified paywall login: give DOI, auto SSO

New Tools

• scansci_pdf_auto_setup — first-run environment check
• scansci_pdf_source_scores — per-source success rate ranking
• EZProxy library proxy (scansci_pdf_ezproxy_login/status)
• camofox persistent browser (scansci_pdf_camofox_login/status/import_cookies)
• Publisher SSO test suite (tests/test_sso_publishers.py)

Code Quality Refactor

• Unified Netscape cookie formatter (cookies_to_netscape)
• Unified .part atomic write pattern
• Deduplicated _IDP_MAP, SSO selectors
• Sci-Hub domain list cleaned: 18 -> 6 working domains

Bug Fixes

• domain_db.set_probe_timestamp TypeError (missing optional arg)
• server.py _log undefined in closures

Breaking Changes

• Removed all hardcoded Tsinghua University defaults — institution must be configured via CARSI_IDP_NAME

Docs

• Rewritten skill and README with smart_download/login as primary workflow