v4.13.0

Added

• In-process translation engine — the built-in translator backends (Google/Bing/Baidu/Microsoft/Lingva) are replaced by the external lncrawl-translator package run in-process, giving multi-engine routing and failover managed from an admin-gated dashboard mounted at /api/translator. New config: a translator.enabled master switch to turn the feature off, plus translator.request_timeout and translator.config_file
• Novel glossary — a per-novel, per-language translation glossary (new add_novel_glossary_table migration) is sent with every request and merged back from the engine so names stay consistent across chapters; manageable via the API and kept when a translation is deleted
• Single-volume artifacts — POST /api/jobs/create/make-artifacts accepts an optional volume (volume serial number) to build an e-book covering just that volume; artifacts record the volume in a new volume column (new artifact_volume_column migration) and can be filtered by it via GET /api/artifacts. Whole-novel listings (list_latest/novel page/download emails) still show only full-novel artifacts
• Per-translation delete — remove a single language's translation of a novel without touching the others (the glossary is preserved)
• Translated titles & volume filtering — list_latest/get_latest support a volume filter, and the chapter/volume detail endpoints accept a language query param to return translated titles
• Library favorites — favorite a library and list favorites (new library_favorites migration)
• Reading history page — new endpoints and response models surface reading stats and continue-reading
• Basic-tier translation — single-novel translation jobs are available to the basic tier
• Automatic novel language — a novel's language is detected and set while crawling

Changed

• Per-source request rate limiting — request_concurrency and the rate knob are merged into a single per-source request_rate_limit, now enforced across every concurrent job hitting a source; FetchService uses one scraper instance per thread
• Resilient desktop webview startup — startup is reworked for a smoother experience: readiness is gated on /health, with a fail-fast path when the server exits early and a system-browser fallback
• Faster CLI startup — the FastAPI import is deferred off the crawler/source import path
• Sliding sessions — the current session is kept alive via a refresh token on /me, now with an absolute cap (new server.session_max_lifetime, default 30 days) and role/tier re-derived from the live user on each refresh
• Translator dashboard proxying — proxied via base-href injection instead of URL rewriting; only the translator API is admin-gated

Fixed

• SMTP — reconnect stale connections before sending mail
• Glossary merge race — concurrent translation jobs of the same novel no longer collide on the glossary unique constraint or drop each other's terms
• Invite reply loop — the incoming Subject/Message-ID reused for threaded invite replies are sanitized, so a crafted email can no longer wedge the invite handler into an endless reprocess loop
• Artifact listing count — the paginated total now applies the same filters as the results, fixing page counts
• Source crawlers — migrated many sources to the declarative request_rate_limit attribute