feat: Localize Sleep, Diaper, Activity, and Settings pages

Added comprehensive localization to tracking and settings pages:

**Translation Keys Added:**
- Sleep: locations, status, duration formatting, success/delete messages
- Diaper: conditions, rash severity and alert, success/delete messages
- Activity: activity types, form labels, placeholders
- Settings: profile, preferences, notifications, appearance, account actions
- Common: shared labels (selectChild, noChildrenAdded, etc.)

**Pages Localized:**
1. Sleep tracking page (/app/track/sleep/page.tsx)
   - All form labels and dropdowns
   - Location options (crib, bed, stroller, carrier, other)
   - Sleep status (completed/ongoing)
   - Duration display with interpolation
   - Success and delete messages

2. Diaper tracking page (/app/track/diaper/page.tsx)
   - Diaper types (wet, dirty, both, dry)
   - Conditions (normal, soft, hard, watery, mucus, blood)
   - Rash detection with severity levels
   - Alert message for diaper rash
   - Recent diapers display with translated labels

3. Activity tracking page (/app/track/activity/page.tsx)
   - Activity types (play, walk, music, reading, tummy time, outdoor, other)
   - Duration and description fields
   - Form placeholders
   - Recent activities display

4. Settings page (/app/settings/page.tsx)
   - Profile information section
   - Preferences, notifications, appearance sections
   - Account actions (logout)
   - Save/saving button states
   - Success message

All pages now support multi-language translation and are ready for
Spanish, French, Portuguese, and Chinese translations.

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

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

maternal-web/locales/en/settings.json

@@ -106,8 +106,42 @@
     "rateApp": "Rate App",
     "shareApp": "Share App"
   },
-  "save": "Save Changes",
-  "saved": "Settings saved successfully",
+  "profile": {
+    "title": "Profile Information",
+    "name": "Name",
+    "nameRequired": "Name cannot be empty",
+    "email": "Email",
+    "emailNotEditable": "Email cannot be changed"
+  },
+  "appearance": {
+    "title": "Appearance",
+    "darkMode": "Dark Mode (Coming Soon)"
+  },
+  "security": {
+    "title": "Security"
+  },
+  "sessions": {
+    "title": "Sessions"
+  },
+  "deviceTrust": {
+    "title": "Device Trust"
+  },
+  "biometric": {
+    "title": "Biometric Authentication"
+  },
+  "dataExport": {
+    "title": "Data Export"
+  },
+  "accountDeletion": {
+    "title": "Account Deletion"
+  },
+  "accountActions": {
+    "title": "Account Actions",
+    "logout": "Logout"
+  },
+  "save": "Save Preferences",
+  "saving": "Saving...",
+  "saved": "Settings saved successfully!",
   "cancel": "Cancel",
   "reset": "Reset to Default"
 }

maternal-web/locales/en/tracking.json

@@ -42,6 +42,7 @@
   "sleep": {
     "title": "Sleep",
     "addSleep": "Add Sleep",
+    "logSleep": "Log Sleep",
     "startTime": "Sleep Start",
     "endTime": "Sleep End",
     "duration": "Duration",
@@ -52,14 +53,33 @@
       "good": "Good",
       "excellent": "Excellent"
     },
+    "location": "Location",
+    "locations": {
+      "crib": "Crib",
+      "bed": "Bed",
+      "stroller": "Stroller",
+      "carrier": "Carrier",
+      "other": "Other"
+    },
+    "status": {
+      "title": "Sleep Status",
+      "completed": "Completed (has end time)",
+      "ongoing": "Ongoing (still sleeping)"
+    },
+    "now": "Now",
     "notes": "Notes",
     "placeholders": {
       "notes": "Add any notes about this sleep session..."
-    }
+    },
+    "recentSleeps": "Recent Sleeps",
+    "success": "Sleep logged successfully!",
+    "deleted": "Sleep deleted successfully",
+    "ongoing_duration": "Ongoing - {{duration}}"
   },
   "diaper": {
     "title": "Diaper",
     "addDiaper": "Add Diaper Change",
+    "logDiaper": "Log Diaper Change",
     "type": "Type",
     "types": {
       "wet": "Wet",
@@ -68,10 +88,35 @@
       "dry": "Dry"
     },
     "time": "Time",
+    "now": "Now",
+    "conditions": {
+      "title": "Conditions",
+      "normal": "Normal",
+      "soft": "Soft",
+      "hard": "Hard",
+      "watery": "Watery",
+      "mucus": "Mucus",
+      "blood": "Blood"
+    },
+    "rash": {
+      "title": "Has Rash",
+      "yes": "Yes",
+      "no": "No",
+      "severity": "Rash Severity",
+      "alert": "Diaper rash detected. Consider applying diaper rash cream and consulting your pediatrician if it persists.",
+      "severities": {
+        "mild": "Mild",
+        "moderate": "Moderate",
+        "severe": "Severe"
+      }
+    },
     "notes": "Notes",
     "placeholders": {
       "notes": "Add any notes about this diaper change..."
-    }
+    },
+    "recentDiapers": "Recent Diaper Changes",
+    "success": "Diaper change logged successfully!",
+    "deleted": "Diaper change deleted successfully"
   },
   "milestone": {
     "title": "Milestone",
@@ -123,6 +168,42 @@
       "fahrenheit": "°F"
     }
   },
+  "activity": {
+    "title": "Activity",
+    "addActivity": "Add Activity",
+    "logActivity": "Log Activity",
+    "type": "Activity Type",
+    "types": {
+      "play": "Play",
+      "tummyTime": "Tummy Time",
+      "walk": "Walk",
+      "music": "Music",
+      "reading": "Reading",
+      "outdoor": "Outdoor Play",
+      "other": "Other"
+    },
+    "duration": "Duration (minutes)",
+    "description": "Description",
+    "notes": "Notes",
+    "placeholders": {
+      "duration": "Enter duration in minutes",
+      "description": "Describe the activity...",
+      "notes": "Add any notes..."
+    },
+    "recentActivities": "Recent Activities",
+    "success": "Activity logged successfully!",
+    "deleted": "Activity deleted successfully"
+  },
+  "common": {
+    "selectChild": "Select Child",
+    "cancel": "Cancel",
+    "delete": "Delete",
+    "loading": "Loading...",
+    "noChildrenAdded": "No Children Added",
+    "noChildrenMessage": "You need to add a child before you can track activities",
+    "addChild": "Add Child",
+    "recentActivities": "Recent Activities"
+  },
   "quickLog": "Quick Log",
   "viewHistory": "View History",
   "editEntry": "Edit Entry",