fix(tagger): model-neutral session log; changelog for JoyTag

create_tagger_session is shared by both models but logged "WD tagger: using
CPU execution provider" even when loading JoyTag. Make the CPU/DirectML
session logs model-neutral. Add the JoyTag tagging-model picker to the
changelog now that it's runtime-verified.

CHANGELOG.md

@@ -42,6 +42,12 @@ aims to follow [Semantic Versioning](https://semver.org/spec/v2.0.0.html)
   changes grouped into collapsible Added / Changed / Fixed sections.
 - **Build badge in Settings** — the version line in Settings → Updates now shows
   whether the running build is the CPU or CUDA (GPU-accelerated) variant.
+- **Choose your tagging model** — Settings → AI Workspace now lets you switch the
+  AI tagger between the WD tagger (anime-focused) and **JoyTag**, which also
+  handles photographic content and is stronger on NSFW concepts — a better fit
+  for real-photo libraries. Each model downloads on demand, and tags are
+  attributed to the model that produced them. JoyTag has no built-in rating, so
+  its explicitness rating is derived from its tags.
 
 ### Changed
 

src-tauri/src/tagger.rs

@@ -987,15 +987,13 @@ fn create_tagger_session(path: &Path, acceleration: TaggerAcceleration) -> Resul
 
     let mut builder = match acceleration {
         TaggerAcceleration::Cpu => {
-            log::info!(
-                "WD tagger: using CPU execution provider ({intra_threads} intra-op threads)"
-            );
+            log::info!("Tagger: using CPU execution provider ({intra_threads} intra-op threads)");
             builder
         }
         TaggerAcceleration::Auto => builder
             .with_execution_providers([ep::DirectML::default().build().fail_silently()])
             .unwrap_or_else(|error| {
-                log::info!("WD tagger: DirectML unavailable, falling back to CPU");
+                log::info!("Tagger: DirectML unavailable, falling back to CPU");
                 error.recover()
             }),
         TaggerAcceleration::Directml => builder

src/dev/mockBackend.ts

@@ -344,6 +344,9 @@ export async function handleMockCommand(cmd: string, payload?: unknown): Promise
       return 12;
     case "get_tagger_model_status":
       return { model_id: "SmilingWolf/wd-vit-tagger-v3", model_name: "WD ViT Tagger", local_dir: "mock://models/tagger", ready: true, missing_files: [] };
+    case "get_tagger_model":
+    case "set_tagger_model":
+      return p.model ?? "wd";
     case "get_tagger_acceleration":
     case "set_tagger_acceleration":
       return p.acceleration ?? "auto";

src/store.ts

@@ -2166,7 +2166,8 @@ export const useGalleryStore = create<GalleryState>((set, get) => ({
   loadTaggerModel: async () => {
     try {
       const taggerModel = await invoke<TaggerModel>("get_tagger_model");
-      set({ taggerModel });
+      // Never clobber the valid default with a missing/blank backend response.
+      if (taggerModel) set({ taggerModel });
     } catch (error) {
       set({ taggerModelError: String(error) });
     }