Use qwen3:latest as default model to avoid tag ambiguity

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/src/views/SettingsView.vue

@@ -361,7 +361,7 @@ async function handleRestoreFile(event: Event) {
       <div class="field">
         <label for="default-model">Chat Model</label>
         <select id="default-model" v-model="defaultModel" class="input">
-          <option value="">Default ({{ defaultChatModel || "qwen3" }})</option>
+          <option value="">Default ({{ defaultChatModel || "qwen3:latest" }})</option>
           <option v-for="m in installedModels" :key="m" :value="m">{{ m }}</option>
         </select>
         <p class="field-hint">Model used for new conversations.</p>

src/fabledassistant/config.py

@@ -23,7 +23,7 @@ class Config:
         "postgresql+asyncpg://fabled:fabled@localhost:5432/fabledassistant",
     )
     OLLAMA_URL: str = os.environ.get("OLLAMA_URL", "http://localhost:11434")
-    OLLAMA_MODEL: str = os.environ.get("OLLAMA_MODEL", "qwen3")
+    OLLAMA_MODEL: str = os.environ.get("OLLAMA_MODEL", "qwen3:latest")
     # Optional dedicated model for intent classification (should be small/fast).
     # Falls back to OLLAMA_MODEL if not set. Can also be overridden per-user via settings.
     OLLAMA_INTENT_MODEL: str = os.environ.get("OLLAMA_INTENT_MODEL", "qwen2.5:1.5b")