fix: translate remaining Chinese in sim config and profile prompts

- Time config: translate all Chinese instructions and field descriptions
- Event config: translate hot topics/narrative direction instructions
- Agent config: translate entity type descriptions and field labels
- Profile generator: translate all persona prompt fields and instructions
- Country field: changed from 'use Chinese' to 'use English'

backend/app/services/oasis_profile_generator.py

@@ -684,43 +684,43 @@ class OasisProfileGenerator:
     ) -> str:
         """构建个人实体的详细人设提示词"""
         
-        attrs_str = json.dumps(entity_attributes, ensure_ascii=False) if entity_attributes else "无"
-        context_str = context[:3000] if context else "无额外上下文"
+        attrs_str = json.dumps(entity_attributes, ensure_ascii=False) if entity_attributes else "None"
+        context_str = context[:3000] if context else "No additional context"
         
         return f"""Generate detailed social media user persona for the entity, maximizing fidelity to real-world situations.
 
-实体名称: {entity_name}
-实体类型: {entity_type}
-实体摘要: {entity_summary}
-实体属性: {attrs_str}
+Entity name: {entity_name}
+Entity type: {entity_type}
+Entity summary: {entity_summary}
+Entity attributes: {attrs_str}
 
-上下文信息:
+Context information:
 {context_str}
 
-请生成JSON，包含以下字段:
+Please generate JSON with the following fields:
 
-1. bio: 社交媒体简介，200字
-2. persona: 详细人设描述（2000字的纯文本），需包含:
-   - 基本信息（年龄、职业、教育背景、所在地）
-   - 人物背景（重要经历、与事件的关联、社会关系）
-   - 性格特征（MBTI类型、核心性格、情绪表达方式）
-   - 社交媒体行为（发帖频率、内容偏好、互动风格、语言特点）
-   - 立场观点（对话题的态度、可能被激怒/感动的内容）
-   - 独特特征（口头禅、特殊经历、个人爱好）
-   - 个人记忆（人设的重要部分，要介绍这个个体与事件的关联，以及这个个体在事件中的已有动作与反应）
-3. age: 年龄数字（必须是整数）
-4. gender: 性别，必须是英文: "male" 或 "female"
-5. mbti: MBTI类型（如INTJ、ENFP等）
-6. country: 国家（使用中文，如"中国"）
-7. profession: 职业
-8. interested_topics: 感兴趣话题数组
+1. bio: Social media bio, 200 characters
+2. persona: Detailed persona description (2000 chars plain text), must include:
+   - Basic info (age, occupation, education, location)
+   - Background (important experiences, connection to event, social relations)
+   - Personality (MBTI type, core personality, emotional expression style)
+   - Social media behavior (posting frequency, content preferences, interaction style, language traits)
+   - Stance (attitude toward topics, content that may trigger/move them)
+   - Unique traits (catchphrases, special experiences, personal hobbies)
+   - Personal memory (important part of persona: individual's connection to the event, and their existing actions and reactions)
+3. age: Age number (must be integer)
+4. gender: Gender, must be English: "male" or "female"
+5. mbti: MBTI type (e.g. INTJ, ENFP)
+6. country: Country (use English, e.g. "Thailand", "China")
+7. profession: Occupation
+8. interested_topics: Array of topics of interest
 
-重要:
-- 所有字段值必须是字符串或数字，不要使用换行符
-- persona必须是一段连贯的文字描述
+Important:
+- All field values must be strings or numbers, do not use newlines
+- persona must be a coherent text description
 - {get_language_instruction()} (gender字段必须用英文male/female)
-- 内容要与实体信息保持一致
-- age必须是有效的整数，gender必须是"male"或"female"
+- Content must be consistent with entity information
+- age must be a valid integer, gender must be "male" or "female"
 """
 
     def _build_group_persona_prompt(
@@ -733,42 +733,42 @@ class OasisProfileGenerator:
     ) -> str:
         """构建群体/机构实体的详细人设提示词"""
         
-        attrs_str = json.dumps(entity_attributes, ensure_ascii=False) if entity_attributes else "无"
-        context_str = context[:3000] if context else "无额外上下文"
+        attrs_str = json.dumps(entity_attributes, ensure_ascii=False) if entity_attributes else "None"
+        context_str = context[:3000] if context else "No additional context"
         
         return f"""Generate detailed social media account settings for organization/group entity, maximizing fidelity to real-world situations.
 
-实体名称: {entity_name}
-实体类型: {entity_type}
-实体摘要: {entity_summary}
-实体属性: {attrs_str}
+Entity name: {entity_name}
+Entity type: {entity_type}
+Entity summary: {entity_summary}
+Entity attributes: {attrs_str}
 
-上下文信息:
+Context information:
 {context_str}
 
-请生成JSON，包含以下字段:
+Please generate JSON with the following fields:
 
-1. bio: 官方账号简介，200字，专业得体
-2. persona: 详细账号设定描述（2000字的纯文本），需包含:
-   - 机构基本信息（正式名称、机构性质、成立背景、主要职能）
-   - 账号定位（账号类型、目标受众、核心功能）
-   - 发言风格（语言特点、常用表达、禁忌话题）
-   - 发布内容特点（内容类型、发布频率、活跃时间段）
-   - 立场态度（对核心话题的官方立场、面对争议的处理方式）
-   - 特殊说明（代表的群体画像、运营习惯）
-   - 机构记忆（机构人设的重要部分，要介绍这个机构与事件的关联，以及这个机构在事件中的已有动作与反应）
-3. age: 固定填30（机构账号的虚拟年龄）
-4. gender: 固定填"other"（机构账号使用other表示非个人）
-5. mbti: MBTI类型，用于描述账号风格，如ISTJ代表严谨保守
-6. country: 国家（使用中文，如"中国"）
-7. profession: 机构职能描述
-8. interested_topics: 关注领域数组
+1. bio: Official account bio, 200 characters, professional and appropriate
+2. persona: Detailed account settings description (2000 chars plain text), must include:
+   - Organization basics (official name, nature, founding background, main functions)
+   - Account positioning (account type, target audience, core function)
+   - Speaking style (language traits, common expressions, taboo topics)
+   - Content characteristics (content type, posting frequency, active hours)
+   - Stance (official position on core topics, handling of controversies)
+   - Special notes (represented group profile, operational habits)
+   - Organization memory (important part: organization's connection to the event, and their existing actions and reactions)
+3. age: Always 30 (virtual age for organization accounts)
+4. gender: Always "other" (organization accounts use "other" to indicate non-personal)
+5. mbti: MBTI type to describe account style, e.g. ISTJ for rigorous and conservative
+6. country: Country (use English, e.g. "Thailand", "China")
+7. profession: Organization function description
+8. interested_topics: Array of areas of interest
 
-重要:
-- 所有字段值必须是字符串或数字，不允许null值
-- persona必须是一段连贯的文字描述，不要使用换行符
+Important:
+- All field values must be strings or numbers, null values not allowed
+- persona must be a coherent text description，不要使用换行符
 - {get_language_instruction()} (gender字段必须用英文"other")
-- age必须是整数30，gender必须是字符串"other"
+- age must be integer 30, gender must be string "other"
 - Organization account posts must match its identity positioning"""
     
     def _generate_profile_rule_based(