v1.5.0 — CloakBrowser, CARSI standalone

What's Changed

Breaking Changes

• Replace Camoufox with CloakBrowser — browser automation now uses cloakbrowser package. Remove selenium and camoufox dependencies.
• Decouple CARSI from WebVPN — CARSI publisher SSO is now a standalone download tier in the orchestrator, independent of WebVPN flow.

Improvements

• Add .gitignore rules for test artifacts and temp files
• Harden architecture with cleaner separation of download strategies

Migration

• pip install scansci-pdf[cloakbrowser] for browser-based downloads (replaces [vpnsci] for browser needs)
• pip install scansci-pdf[vpnsci] still available for WebVPN-only use (pycryptodome + selenium kept for legacy)

Full Changelog: v1.4.0...v1.5.0