Fix daily summary to display real activity counts and add medicine tracker

## Backend Changes
- Update tracking.service.ts getDailySummary to calculate actual counts
- Import ActivityType enum for proper type comparisons
- Calculate feedingCount, sleepTotalMinutes, diaperCount, medicationCount
- Sleep duration now correctly calculated from startedAt/endedAt timestamps

## Frontend API Changes
- Add medicationCount to DailySummary interface
- Extract endTime from metadata and send as endedAt to backend
- Enables proper sleep duration tracking with start/end times

## Homepage Updates
- Add Medicine and Activities quick action buttons
- Update summary grid from 3 to 4 columns (responsive layout)
- Add medication count display with MedicalServices icon
- Improve grid responsiveness (xs=6, sm=3)
- Replace Analytics button with Activities button

## New Activities Page
- Create /activities page to show recent activity history
- Display last 7 days of activities with color-coded icons
- Show smart timestamps (Today/Yesterday/date format)
- Activity-specific descriptions (feeding amount, sleep duration, etc.)

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

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

maternal-app/maternal-app-backend/src/modules/tracking/tracking.service.ts

@@ -6,7 +6,7 @@ import {
 } from '@nestjs/common';
 import { InjectRepository } from '@nestjs/typeorm';
 import { Repository, Between, MoreThanOrEqual, LessThanOrEqual } from 'typeorm';
-import { Activity } from '../../database/entities/activity.entity';
+import { Activity, ActivityType } from '../../database/entities/activity.entity';
 import { Child } from '../../database/entities/child.entity';
 import { FamilyMember } from '../../database/entities/family-member.entity';
 import { CreateActivityDto } from './dto/create-activity.dto';
@@ -255,31 +255,57 @@ export class TrackingService {
       },
     });
 
-    // Group by type
-    const summary: Record<string, any> = {
-      date,
-      childId,
-      activities: [],
-      byType: {},
-    };
+    // Calculate summary statistics
+    let feedingCount = 0;
+    let sleepTotalMinutes = 0;
+    let diaperCount = 0;
+    let medicationCount = 0;
+
+    const activityList = [];
+    const byType: Record<string, any[]> = {};
 
     activities.forEach((activity) => {
-      summary.activities.push({
+      const activityData = {
         id: activity.id,
         type: activity.type,
         startedAt: activity.startedAt,
         endedAt: activity.endedAt,
         notes: activity.notes,
         metadata: activity.metadata,
-      });
+      };
 
-      if (!summary.byType[activity.type]) {
-        summary.byType[activity.type] = [];
+      activityList.push(activityData);
+
+      if (!byType[activity.type]) {
+        byType[activity.type] = [];
       }
+      byType[activity.type].push(activity);
 
-      summary.byType[activity.type].push(activity);
+      // Count by type
+      if (activity.type === ActivityType.FEEDING) {
+        feedingCount++;
+      } else if (activity.type === ActivityType.SLEEP) {
+        // Calculate sleep duration in minutes
+        if (activity.startedAt && activity.endedAt) {
+          const durationMs = new Date(activity.endedAt).getTime() - new Date(activity.startedAt).getTime();
+          sleepTotalMinutes += Math.floor(durationMs / 60000);
+        }
+      } else if (activity.type === ActivityType.DIAPER) {
+        diaperCount++;
+      } else if (activity.type === ActivityType.MEDICATION) {
+        medicationCount++;
+      }
     });
 
-    return summary;
+    return {
+      date,
+      childId,
+      feedingCount,
+      sleepTotalMinutes,
+      diaperCount,
+      medicationCount,
+      activities: activityList,
+      byType,
+    };
   }
 }