feat: Complete Spanish, French, Portuguese, Chinese localization and add German/Italian support

- Updated all Spanish (es) translation files with comprehensive translations for tracking, AI, family, insights, children, and settings pages
- Updated French (fr), Portuguese (pt), and Chinese (zh) translations to match English structure
- Added German (de) and Italian (it) language support with complete translation files
- Fixed medicine tracker route from /track/medication to /track/medicine
- Updated i18n config to support 7 languages: en, es, fr, pt, zh, de, it
- All tracking pages now fully localized: sleep, feeding, diaper, medicine, activity
- AI assistant interface fully translated with thinking messages and suggested questions
- Family management and insights pages now support all languages

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

maternal-web/locales/zh/tracking.json

@@ -1,7 +1,7 @@
 {
-  "title": "活动追踪",
-  "trackActivity": "记录活动",
-  "selectActivity": "选择要追踪的活动",
+  "title": "活动跟踪",
+  "trackActivity": "跟踪活动",
+  "selectActivity": "选择要跟踪的活动",
   "activities": {
     "feeding": "喂养",
     "sleep": "睡眠",
@@ -10,128 +10,270 @@
     "activity": "活动"
   },
   "feeding": {
-    "title": "Feeding",
-    "addFeeding": "Add Feeding",
-    "type": "Feeding Type",
+    "title": "喂养",
+    "addFeeding": "添加喂养",
+    "type": "喂养类型",
     "types": {
-      "breast": "Breast",
-      "bottle": "Bottle",
-      "solid": "Solid Food"
+      "breast": "母乳",
+      "bottle": "奶瓶",
+      "solid": "固体食物"
     },
-    "side": "Side",
+    "side": "侧面",
     "sides": {
-      "left": "Left",
-      "right": "Right",
-      "both": "Both"
+      "left": "左侧",
+      "right": "右侧",
+      "both": "两侧"
     },
-    "amount": "Amount",
-    "duration": "Duration",
-    "startTime": "Start Time",
-    "endTime": "End Time",
-    "notes": "Notes",
+    "amount": "数量",
+    "duration": "持续时间",
+    "startTime": "开始计时",
+    "endTime": "停止计时",
+    "reset": "重置",
+    "notes": "备注",
+    "bottleType": "奶瓶类型",
+    "bottleTypes": {
+      "formula": "配方奶",
+      "breastmilk": "母乳",
+      "other": "其他"
+    },
+    "foodDescription": "食物描述",
+    "amountDescription": "数量描述",
     "placeholders": {
-      "amount": "Enter amount",
-      "notes": "Add any notes about this feeding..."
+      "amount": "输入数量",
+      "notes": "添加关于此次喂养的备注...",
+      "duration": "或手动输入持续时间",
+      "foodDescription": "例如：米糊、香蕉泥",
+      "amountDescription": "例如：1/4杯、2勺"
     },
     "units": {
-      "ml": "ml",
-      "oz": "oz",
-      "minutes": "minutes"
+      "ml": "毫升",
+      "oz": "盎司",
+      "minutes": "分钟"
+    },
+    "validation": {
+      "durationRequired": "请输入持续时间或使用计时器",
+      "amountRequired": "请输入数量",
+      "foodRequired": "请输入食物描述"
+    },
+    "success": "喂养记录成功！",
+    "deleted": "喂养记录删除成功",
+    "recentFeedings": "最近喂养",
+    "error": {
+      "saveFailed": "保存喂养记录失败",
+      "deleteFailed": "删除喂养记录失败"
     }
   },
   "sleep": {
-    "title": "Sleep",
-    "addSleep": "Add Sleep",
-    "startTime": "Sleep Start",
-    "endTime": "Sleep End",
-    "duration": "Duration",
-    "quality": "Quality",
+    "title": "睡眠",
+    "addSleep": "添加睡眠",
+    "logSleep": "记录睡眠",
+    "startTime": "睡眠开始",
+    "endTime": "睡眠结束",
+    "duration": "持续时间",
+    "quality": "质量",
     "qualities": {
-      "poor": "Poor",
-      "fair": "Fair",
-      "good": "Good",
-      "excellent": "Excellent"
+      "poor": "差",
+      "fair": "一般",
+      "good": "好",
+      "excellent": "优秀"
     },
-    "notes": "Notes",
+    "location": "位置",
+    "locations": {
+      "crib": "婴儿床",
+      "bed": "床",
+      "stroller": "婴儿车",
+      "carrier": "背带",
+      "other": "其他"
+    },
+    "status": {
+      "title": "睡眠状态",
+      "completed": "已完成（有结束时间）",
+      "ongoing": "进行中（仍在睡觉）"
+    },
+    "now": "现在",
+    "notes": "备注",
     "placeholders": {
-      "notes": "Add any notes about this sleep session..."
-    }
+      "notes": "添加关于此次睡眠的备注..."
+    },
+    "recentSleeps": "最近睡眠",
+    "success": "睡眠记录成功！",
+    "deleted": "睡眠记录删除成功",
+    "ongoing_duration": "进行中 - {{duration}}"
   },
   "diaper": {
-    "title": "Diaper",
-    "addDiaper": "Add Diaper Change",
-    "type": "Type",
+    "title": "尿布",
+    "addDiaper": "添加换尿布",
+    "logDiaper": "记录换尿布",
+    "type": "类型",
     "types": {
-      "wet": "Wet",
-      "dirty": "Dirty",
-      "both": "Both",
-      "dry": "Dry"
+      "wet": "湿",
+      "dirty": "脏",
+      "both": "两者",
+      "dry": "干"
     },
-    "time": "Time",
-    "notes": "Notes",
+    "time": "时间",
+    "now": "现在",
+    "conditions": {
+      "title": "状况",
+      "normal": "正常",
+      "soft": "软",
+      "hard": "硬",
+      "watery": "水样",
+      "mucus": "粘液",
+      "blood": "血液"
+    },
+    "rash": {
+      "title": "有红疹",
+      "yes": "是",
+      "no": "否",
+      "severity": "红疹严重程度",
+      "alert": "检测到尿布疹。考虑涂抹尿布疹膏，如果持续请咨询您的儿科医生。",
+      "severities": {
+        "mild": "轻微",
+        "moderate": "中等",
+        "severe": "严重"
+      }
+    },
+    "notes": "备注",
     "placeholders": {
-      "notes": "Add any notes about this diaper change..."
-    }
+      "notes": "添加关于此次换尿布的备注..."
+    },
+    "recentDiapers": "最近换尿布",
+    "success": "换尿布记录成功！",
+    "deleted": "换尿布记录删除成功"
   },
   "milestone": {
-    "title": "Milestone",
-    "addMilestone": "Add Milestone",
-    "category": "Category",
+    "title": "里程碑",
+    "addMilestone": "添加里程碑",
+    "category": "类别",
     "categories": {
-      "physical": "Physical",
-      "cognitive": "Cognitive",
-      "social": "Social",
-      "language": "Language"
+      "physical": "身体",
+      "cognitive": "认知",
+      "social": "社交",
+      "language": "语言"
     },
-    "description": "Description",
-    "date": "Date",
-    "notes": "Notes",
+    "description": "描述",
+    "date": "日期",
+    "notes": "备注",
     "placeholders": {
-      "description": "Describe the milestone...",
-      "notes": "Add any additional notes..."
+      "description": "描述里程碑...",
+      "notes": "添加任何额外备注..."
     }
   },
   "health": {
-    "title": "Health",
-    "addHealth": "Add Health Record",
-    "type": "Type",
+    "title": "健康",
+    "addHealth": "添加健康记录",
+    "type": "类型",
     "types": {
-      "temperature": "Temperature",
-      "medication": "Medication",
-      "symptom": "Symptom",
-      "doctor": "Doctor Visit"
+      "temperature": "体温",
+      "medication": "药物",
+      "symptom": "症状",
+      "doctor": "医生就诊"
     },
-    "temperature": "Temperature",
-    "medication": "Medication",
-    "dosage": "Dosage",
-    "symptom": "Symptom",
-    "severity": "Severity",
+    "temperature": "体温",
+    "medication": "药物",
+    "medicineInfo": "药物信息",
+    "medicineName": {
+      "label": "药物名称",
+      "placeholder": "例如：对乙酰氨基酚、布洛芬",
+      "required": "请输入药物名称"
+    },
+    "dosage": {
+      "label": "剂量",
+      "placeholder": "例如：5、2.5",
+      "required": "请输入剂量"
+    },
+    "unit": "单位",
+    "route": {
+      "label": "给药途径",
+      "oral": "口服",
+      "topical": "外用",
+      "injection": "注射",
+      "other": "其他"
+    },
+    "reason": {
+      "label": "原因（可选）",
+      "placeholder": "例如：发烧、疼痛、过敏"
+    },
+    "logMedicine": "记录药物",
+    "recentMedicines": "最近药物",
+    "success": "药物记录成功！",
+    "error": "保存药物失败",
+    "deleted": "药物记录删除成功",
+    "deleteError": "删除药物失败",
+    "symptom": "症状",
+    "severity": "严重程度",
     "severities": {
-      "mild": "Mild",
-      "moderate": "Moderate",
-      "severe": "Severe"
+      "mild": "轻微",
+      "moderate": "中等",
+      "severe": "严重"
     },
-    "notes": "Notes",
+    "notes": "备注",
     "placeholders": {
-      "medication": "Medication name",
-      "dosage": "Dosage amount",
-      "symptom": "Describe symptom",
-      "notes": "Add any notes..."
+      "medication": "药物名称",
+      "dosage": "剂量数量",
+      "symptom": "描述症状",
+      "notes": "添加任何备注..."
     },
     "units": {
+      "ml": "毫升",
+      "mg": "毫克",
+      "tsp": "茶匙",
+      "tbsp": "汤匙",
+      "drops": "滴",
+      "tablet": "片",
       "celsius": "°C",
       "fahrenheit": "°F"
     }
   },
-  "quickLog": "Quick Log",
-  "viewHistory": "View History",
-  "editEntry": "Edit Entry",
-  "deleteEntry": "Delete Entry",
-  "confirmDelete": "Are you sure you want to delete this entry?",
-  "filterByType": "Filter by Type",
-  "filterByChild": "Filter by Child",
-  "sortByNewest": "Newest First",
-  "sortByOldest": "Oldest First",
-  "noEntries": "No entries yet",
-  "addFirstEntry": "Add your first entry to start tracking"
-}
+  "activity": {
+    "title": "活动",
+    "addActivity": "添加活动",
+    "logActivity": "记录活动",
+    "type": "活动类型",
+    "types": {
+      "play": "玩耍",
+      "tummyTime": "趴着时间",
+      "walk": "散步",
+      "music": "音乐",
+      "reading": "阅读",
+      "outdoor": "户外玩耍",
+      "other": "其他"
+    },
+    "duration": "持续时间（分钟）",
+    "description": "描述",
+    "notes": "备注",
+    "placeholders": {
+      "duration": "输入持续时间（分钟）",
+      "description": "描述活动...",
+      "notes": "添加任何备注..."
+    },
+    "recentActivities": "最近活动",
+    "success": "活动记录成功！",
+    "deleted": "活动记录删除成功"
+  },
+  "common": {
+    "selectChild": "选择孩子",
+    "cancel": "取消",
+    "delete": "删除",
+    "loading": "加载中...",
+    "noChildrenAdded": "未添加孩子",
+    "noChildrenMessage": "您需要先添加孩子才能跟踪活动",
+    "addChild": "添加孩子",
+    "recentActivities": "最近活动",
+    "error": {
+      "loadChildrenFailed": "加载孩子信息失败"
+    }
+  },
+  "quickLog": "快速记录",
+  "viewHistory": "查看历史",
+  "editEntry": "编辑条目",
+  "deleteEntry": "删除条目",
+  "confirmDelete": "您确定要删除此条目吗？",
+  "filterByType": "按类型筛选",
+  "filterByChild": "按孩子筛选",
+  "sortByNewest": "最新优先",
+  "sortByOldest": "最旧优先",
+  "noEntries": "还没有条目",
+  "addFirstEntry": "添加您的第一个条目开始跟踪"
+}