Add ČSFD Anubis bypass, drop legacy preset tags, rename Země → Země původu

CHANGELOG.md

@@ -44,7 +44,7 @@ Each version entry uses these sections (include only those that apply):
 - Project `README.md` (overview, concepts, workflow, run/build instructions).
 - **ČSFD scraping** (`csfd.py`, ported from the Tagger devel branch): fetches
   movie data from a ČSFD link (JSON-LD + HTML parsing). `File.apply_csfd_tags`
-  assigns Žánr / Rok / Země tags and caches the fetched data in the metadata.
+  assigns Žánr / Rok / Země původu tags and caches the fetched data in the metadata.
   The GUI auto-fetches on import when a link is given and offers "Načíst tagy
   z ČSFD" for selected movies.
 - App startup injects `truststore` so HTTPS uses the OS certificate store —
@@ -56,12 +56,35 @@ Each version entry uses these sections (include only those that apply):
 - ČSFD parsing updated for the current site HTML: year is read from JSON-LD
   `dateCreated`, and the origin line (now bullet-separated, no commas) is
   tokenized so country / year / duration are extracted correctly.
+- **ČSFD anti-bot wall (Anubis):** ČSFD now serves a proof-of-work challenge
+  page instead of the movie, so fetches returned a film with no genres/year
+  ("načteno 0 tagů"). `csfd.py` now detects the Anubis challenge, solves the
+  SHA-256 proof-of-work the way the bundled worker JS does, and replays the
+  request through a `requests.Session` (reused across a batch so only the first
+  fetch pays the PoW cost). Žánr / Rok / Země původu tags load again.
+- "Assign tags" dialog crashed on PySide6/Qt6 — `Qt.ItemIsTristate` was renamed
+  to `Qt.ItemIsAutoTristate`.
 
 ### Changed
+- ČSFD country tag category renamed **Země → Země původu**. Added
+  `scripts/migrate_tag_category.py` to rewrite the category in an existing pool
+  index (backs up `.Curator.!index` first); run against the live pool.
+- Filmotéka tree now also builds the **Země původu** branch — it was missing
+  from `FILMOTEKA_CATEGORIES`, so the country level was never generated. Tree
+  categories are now Rok / Žánr / Země původu / Hodnocení.
+- Movie table trimmed to **Název / Štítky / Velikost** — the Datum and ČSFD
+  columns were dropped (a ČSFD link is a prerequisite, so its indicator was
+  always the same).
 - All references to "Tagger" renamed to "Curator" (code, spec, config filenames
   `.Curator.!gtag` / `.Curator.!ftag`, tests).
 - `requires-python` narrowed to `>=3.14,<3.15` (PySide6 compatibility).
 
+### Removed
+- Legacy Tagger predefined tags: the always-available **Hodnocení** (⭐ rating)
+  and **Barva** (color) categories in `TagManager`, and the automatic
+  **Stav/Nové** tag assigned to every newly imported file. `DEFAULT_TAGS` is now
+  empty; the pool is driven by ČSFD-derived tags (Žánr / Rok / Země původu).
+
 ### Dependencies
 - Added `pyside6` (GUI), `requests` + `beautifulsoup4` (ČSFD scraping),
   `truststore` (OS cert store for HTTPS). Declared `python-dotenv`, `pillow`,