Store library settings in the pool index and drop legacy sidecars

CHANGELOG.md

@@ -21,6 +21,29 @@ Each version entry uses these sections (include only those that apply):
 
 ## Unreleased
 
+## 1.8.0 — 2026-07-03
+
+### Changed
+- **Split config responsibilities by scope.** The global config (`.Curator.!gtag`)
+  now carries **application data only** — window state, MRU folders, and the
+  `pool_dir` / `filmoteka_dir` pointers. Everything describing a particular
+  library — **`tag_schema`** and **`copyasis_folders`** — moved into the pool
+  index (`.Curator.!index`, under a new `settings` section), so it travels with
+  the pool. `FileManager` reads/writes those via the index (`PoolIndex.get_setting`
+  / `set_setting`) and **migrates** any values left in an old global config into
+  the index once, on first open (`FileManager._migrate_global_settings`).
+
+### Removed
+- **Per-folder config (`.Curator.!ftag`)** and the whole legacy folder-scan path
+  (`FileManager.append` / `get_folder_config` / `save_folder_config` /
+  `set_ignore_patterns` / `get_ignore_patterns`, `config.load_folder_config` etc.)
+  — inherited from Tagger and unused by the Filmotéka workflow.
+- **Per-file metadata sidecars (`.{filename}.!tag`).** `File` metadata is now
+  stored only in the pool index; an index-less `File` is an in-memory object and
+  writes nothing to disk.
+- **Old tkinter GUI** (`src/ui/gui.py`), orphaned since the PySide6 rewrite and
+  the only remaining consumer of the folder-config/sidecar code.
+
 ## 1.7.0 — 2026-07-02
 
 ### Added