Add worldwide genre style selector

docs/ARCHITECTURE.md

@@ -24,6 +24,7 @@ macOS App
 ├── Application Services
 │   ├── AI Director
 │   ├── Prompt Compiler
+│   ├── Genre & Style Catalog
 │   ├── Instrument Catalog
 │   ├── Arabic Pronunciation Processor
 │   ├── Project Versioning
@@ -109,3 +110,11 @@ the Suno Style Prompt.
 The current architecture does not include instrument images, audio
 previews, sound samples, playback, Freesound, an Instrument API or
 external API calls for instrument data.
+
+## Genre & Style Selector Boundary
+
+Genre and style catalog data is structured local data, separate from
+SwiftUI views. The Presentation layer may search, filter and toggle
+selections, while the catalog service owns stable ids, categories,
+optional regional metadata and search aliases. Selections are stored as
+existing `GenreStyle` values on the SongProject.

docs/DATA_MODEL.md

@@ -41,6 +41,14 @@ InstrumentCatalogItem
 - aliases[]
 - searchTerms[]
 
+GenreStyleCatalogItem
+- id
+- name
+- familyCategory
+- regionOrigin (optional)
+- aliases[]
+- searchTerms[]
+
 SongSection
 - id
 - type (intro, verse, preChorus, chorus, bridge, outro, custom)

docs/OPEN_QUESTIONS.md

@@ -7,8 +7,8 @@ finalized.
 -   Exact Swift/SwiftUI architecture conventions for the repository.
 -   OpenAI model(s) and API endpoint strategy.
 -   Exact private AI rules/system prompt.
--   Complete genre/style taxonomy and whether it is curated locally or
-    AI-assisted.
+-   Resolved: genres/styles use a large curated local catalog with
+    category/region browsing, search aliases and checkbox multi-select.
 -   Complete worldwide instrument catalog taxonomy, family/category
     groups, region/origin coverage, aliases/search terms and maintenance
     strategy.

docs/PRODUCT.md

@@ -21,6 +21,8 @@ and writing engine, then prepares final lyrics and style instructions.
 ## Song Controls
 
 -   Multiple genres/styles can be blended.
+-   Genres and styles can be selected from a large worldwide catalog with
+    search, category/region browsing and checkbox-based multi-select.
 -   Instruments can be selected from a large worldwide instrument
     catalog.
 -   Instruments can be searched by name, browsed by family/category and
@@ -75,6 +77,14 @@ Instrument images, audio previews, sound samples, audio playback,
 Freesound, an Instrument API and external API calls for instrument data
 are not part of the current product requirement.
 
+## Genre & Style Selector
+
+The application provides a large, curated local catalog of worldwide
+music genres and styles. Users can search it, browse by category and
+region/origin where useful, and select or deselect multiple entries with
+checkboxes. Catalog data is structured and separate from SwiftUI views;
+it does not require an external API.
+
 ## Project Management
 
 Every song is stored as a project. Important changes can create versions

docs/TASKS.md

@@ -131,3 +131,4 @@ lyrics and style prompt in the project.
 ## Current Improvements
 
 -   [x] Add confirmed project deletion from the project browser.
+-   [x] Add a worldwide genre and style selector with checkbox multi-select.