feat: 添加关键字过滤功能并优化市场 slug 处理

主要变更：
1. 关键字过滤功能
   - 添加关键字过滤模式（白名单/黑名单/禁用）
   - 支持关键字列表配置（JSON 存储）
   - 实现关键字匹配逻辑（不区分大小写）
   - 数据库迁移：V20__add_keyword_filter.sql

2. 市场 slug 优化
   - 区分显示用 slug 和跳转用 eventSlug
   - 添加 event_slug 字段到 markets 表（V21__add_event_slug_to_markets.sql）
   - 从 events[0].slug 获取跳转用的 slug 并存入数据库
   - 减少 API 请求，提高性能

3. UI 优化
   - 将创建/编辑跟单配置改为 Modal 方式
   - 删除独立的 CopyTradingAdd 和 CopyTradingEdit 页面
   - 更新前端跳转逻辑，优先使用 eventSlug

4. API 响应优化
   - 更新 MarketResponse 添加 events 字段
   - 统一从 events[0].slug 获取跳转用的 slug
   - 更新所有相关服务使用新的 slug 获取逻辑

frontend/src/locales/en/common.json

@@ -30,7 +30,10 @@
     "total": "Total",
     "items": "items",
     "prev": "Previous",
-    "next": "Next"
+    "previous": "Previous",
+    "next": "Next",
+    "page": "Page",
+    "pageOf": "Page"
   },
   "account": {
     "title": "Account Management",
@@ -203,7 +206,8 @@
     "walletType": "Wallet Type",
     "walletTypeHelp": "Web3 Wallet: Polymarket accounts connected via browser wallets like MetaMask\nMagic: Polymarket accounts logged in via email or social accounts (Google, Twitter, etc.)",
     "walletTypeMagic": "Magic (Email/Social Login)",
-    "walletTypeSafe": "Web3 Wallet"
+    "walletTypeSafe": "Web3 Wallet",
+    "magicNotSupported": "(Not Supported)"
   },
   "leader": {
     "title": "Leader Management",
@@ -753,6 +757,17 @@
     "maxPositionCount": "Max Position Count",
     "maxPositionCountTooltip": "Limit the maximum position count for a single market. If the current position count reaches or exceeds this limit, the order will not be placed. Leave empty to disable",
     "maxPositionCountPlaceholder": "For example: 10 (optional, leave empty to disable)",
+    "keywordFilter": "Keyword Filter",
+    "keywordFilterMode": "Filter Mode",
+    "keywordFilterModeTooltip": "Select keyword filter mode. Whitelist: only copy markets containing keywords; Blacklist: do not copy markets containing keywords; Disabled: no keyword filtering. Keyword matching is case-insensitive.",
+    "disabled": "Disabled",
+    "whitelist": "Whitelist",
+    "blacklist": "Blacklist",
+    "keywords": "Keywords",
+    "keywordPlaceholder": "Enter keyword, press Enter to add",
+    "keywordExists": "Keyword already exists",
+    "whitelistTooltip": "💡 Whitelist mode: only copy markets whose titles contain any of the above keywords (case-insensitive)",
+    "blacklistTooltip": "💡 Blacklist mode: do not copy markets whose titles contain any of the above keywords (case-insensitive)",
     "configName": "Configuration Name",
     "configNameRequired": "Please enter configuration name",
     "configNamePlaceholder": "e.g., Copy Trading Config 1",
@@ -839,6 +854,17 @@
     "maxPositionCount": "Max Position Count",
     "maxPositionCountTooltip": "Limit the maximum position count for a single market. If the current position count reaches or exceeds this limit, the order will not be placed. Leave empty to disable",
     "maxPositionCountPlaceholder": "For example: 10 (optional, leave empty to disable)",
+    "keywordFilter": "Keyword Filter",
+    "keywordFilterMode": "Filter Mode",
+    "keywordFilterModeTooltip": "Select keyword filter mode. Whitelist: only copy markets containing keywords; Blacklist: do not copy markets containing keywords; Disabled: no keyword filtering. Keyword matching is case-insensitive.",
+    "disabled": "Disabled",
+    "whitelist": "Whitelist",
+    "blacklist": "Blacklist",
+    "keywords": "Keywords",
+    "keywordPlaceholder": "Enter keyword, press Enter to add",
+    "keywordExists": "Keyword already exists",
+    "whitelistTooltip": "💡 Whitelist mode: only copy markets whose titles contain any of the above keywords (case-insensitive)",
+    "blacklistTooltip": "💡 Blacklist mode: do not copy markets whose titles contain any of the above keywords (case-insensitive)",
     "configName": "Configuration Name",
     "configNameRequired": "Please enter configuration name",
     "configNamePlaceholder": "e.g., Copy Trading Config 1",