feat: Complete comprehensive localization of all tracking and management pages

- Feeding page: 47+ strings localized with validation, success/error messages
- Medicine page: 44 strings localized with unit conversion support
- Sleep page: Already localized (verified)
- Diaper page: Already localized (verified)
- Activity page: Already localized (verified)
- AI Assistant: 51 strings localized including chat interface and suggested questions
- Children page: 38 strings fully localized with gender labels
- Family page: 42 strings localized with role management
- Insights page: 41 strings localized including charts and analytics

Added translation files:
- locales/en/ai.json (44 keys)
- locales/en/family.json (42 keys)
- locales/en/insights.json (41 keys)

Updated translation files:
- locales/en/tracking.json (added feeding, health/medicine sections)
- locales/en/children.json (verified complete)

All pages now use useTranslation hook with proper namespaces.
All user-facing text externalized and ready for multi-language support.

maternal-web/locales/en/tracking.json

@@ -26,17 +26,41 @@
     },
     "amount": "Amount",
     "duration": "Duration",
-    "startTime": "Start Time",
-    "endTime": "End Time",
+    "startTime": "Start Timer",
+    "endTime": "Stop Timer",
+    "reset": "Reset",
     "notes": "Notes",
+    "bottleType": "Bottle Type",
+    "bottleTypes": {
+      "formula": "Formula",
+      "breastmilk": "Breast Milk",
+      "other": "Other"
+    },
+    "foodDescription": "Food Description",
+    "amountDescription": "Amount Description",
     "placeholders": {
       "amount": "Enter amount",
-      "notes": "Add any notes about this feeding..."
+      "notes": "Add any notes about this feeding...",
+      "duration": "Or enter duration manually",
+      "foodDescription": "e.g., Rice cereal, Banana puree",
+      "amountDescription": "e.g., 1/4 cup, 2 spoonfuls"
     },
     "units": {
       "ml": "ml",
       "oz": "oz",
       "minutes": "minutes"
+    },
+    "validation": {
+      "durationRequired": "Please enter duration or use the timer",
+      "amountRequired": "Please enter amount",
+      "foodRequired": "Please enter food description"
+    },
+    "success": "Feeding logged successfully!",
+    "deleted": "Feeding deleted successfully",
+    "recentFeedings": "Recent Feedings",
+    "error": {
+      "saveFailed": "Failed to save feeding",
+      "deleteFailed": "Failed to delete feeding"
     }
   },
   "sleep": {
@@ -148,7 +172,35 @@
     },
     "temperature": "Temperature",
     "medication": "Medication",
-    "dosage": "Dosage",
+    "medicineInfo": "Medicine Information",
+    "medicineName": {
+      "label": "Medicine Name",
+      "placeholder": "e.g., Acetaminophen, Ibuprofen",
+      "required": "Please enter medicine name"
+    },
+    "dosage": {
+      "label": "Dosage",
+      "placeholder": "e.g., 5, 2.5",
+      "required": "Please enter dosage"
+    },
+    "unit": "Unit",
+    "route": {
+      "label": "Route",
+      "oral": "Oral",
+      "topical": "Topical",
+      "injection": "Injection",
+      "other": "Other"
+    },
+    "reason": {
+      "label": "Reason (optional)",
+      "placeholder": "e.g., Fever, Pain, Allergy"
+    },
+    "logMedicine": "Log Medicine",
+    "recentMedicines": "Recent Medicines",
+    "success": "Medicine logged successfully!",
+    "error": "Failed to save medicine",
+    "deleted": "Medicine deleted successfully",
+    "deleteError": "Failed to delete medicine",
     "symptom": "Symptom",
     "severity": "Severity",
     "severities": {
@@ -164,6 +216,12 @@
       "notes": "Add any notes..."
     },
     "units": {
+      "ml": "ml",
+      "mg": "mg",
+      "tsp": "tsp",
+      "tbsp": "tbsp",
+      "drops": "drops",
+      "tablet": "tablet(s)",
       "celsius": "°C",
       "fahrenheit": "°F"
     }
@@ -202,7 +260,10 @@
     "noChildrenAdded": "No Children Added",
     "noChildrenMessage": "You need to add a child before you can track activities",
     "addChild": "Add Child",
-    "recentActivities": "Recent Activities"
+    "recentActivities": "Recent Activities",
+    "error": {
+      "loadChildrenFailed": "Failed to load children"
+    }
   },
   "quickLog": "Quick Log",
   "viewHistory": "View History",