feat: v1.0.0-beta.2 - ExtensionGetter integration, UI revamp, bug fixes

- Replace cross-ClassLoader reflection with ExtensionGetter.getEnabledExtension(AiModelService.class)
- Declare optional pluginDependencies (ai-foundation?: "*") and recommended-apps annotation
- Use OutputSpec.choice for structured classification (sentiment, review safety/quality)
- Use GenerateTextRequest with maxRetries=2 for reliable chat generation
- Add multi-turn conversation context (conversation_history placeholder)
- Fix RateLimitService thread leak (implement DisposableBean)
- Two-stage AI review: safety check + 1-5 quality score mapped to 0-100
- Remove redundant dashboard cards (sentiment distribution, 7-day trend, avg score)
- Redesign settings page with tabbed navigation (basic/persona/model/prompt/cleanup)
- Fix settings layout (move tab bar out of grid container)
- Fix button icon+text alignment via :deep(.btn-content) inline-flex
- Add review score grade labels (excellent/good/fair/poor) in logs

src/main/resources/extensions/settings.yaml

@@ -54,7 +54,7 @@ spec:
         - $formkit: textarea
           name: customPromptTemplate
           label: 自定义Prompt模板
-          value: "{{persona_prompt}}\n\n{{safety_prompt}}\n\n【语言要求】请用评论所使用的语言回复。如果评论是英文，请用英文回复；如果是中文，请用中文回复；如果是日文，请用日文回复；以此类推。\n\n请回复以下评论。注意：\n- 回复长度应与评论长度匹配，简短问候简短回复\n- 不要复述或总结文章内容\n- 自然对话，不要写小作文\n- 只有评论涉及具体内容时才针对性回应\n\n文章（仅供理解上下文，不要复述）：\n{{article}}\n\n评论：\n{{comment}}"
+          value: "{{persona_prompt}}\n\n{{safety_prompt}}\n\n【语言要求】请用评论所使用的语言回复。如果评论是英文，请用英文回复；如果是中文，请用中文回复；如果是日文，请用日文回复；以此类推。\n\n请回复以下评论。注意：\n- 回复长度应与评论长度匹配，简短问候简短回复\n- 不要复述或总结文章内容\n- 自然对话，不要写小作文\n- 只有评论涉及具体内容时才针对性回应\n\n文章（仅供理解上下文，不要复述）：\n{{article}}\n\n{{conversation_history}}\n评论：\n{{comment}}"
         - $formkit: select
           name: enabledPresets
           label: 启用预设