WrestleDesk/docs/superpowers/plans/2026-03-23-training-log-implementation.md

# Training Log Implementation Plan

> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.

**Goal:** Create Training Log page with 3 tabs (Log/Historie/Analyse) for recording and analyzing wrestler exercise performance.

**Architecture:** Backend provides CRUD + stats endpoints for TrainingLogEntry model. Frontend uses tabbed interface with async data fetching.

**Tech Stack:** Django REST Framework (backend), React/Next.js (frontend), Lucide icons

---

## File Structure

### Backend
- **Create:** `backend/training_log/__init__.py`
- **Create:** `backend/training_log/apps.py`
- **Create:** `backend/training_log/models.py` — TrainingLogEntry model
- **Create:** `backend/training_log/serializers.py`
- **Create:** `backend/training_log/views.py`
- **Create:** `backend/training_log/urls.py`
- **Modify:** `backend/wrestleDesk/settings.py` — add 'training_log' to INSTALLED_APPS
- **Modify:** `backend/wrestleDesk/urls.py` — include training_log URLs

### Frontend
- **Create:** `frontend/src/app/(dashboard)/training-log/page.tsx` — Main page with tabs
- **Modify:** `frontend/src/lib/api.ts` — Add ITrainingLogEntry, ITrainingLogStats interfaces
- **Modify:** `frontend/src/components/layout/sidebar.tsx` — Add Training Log nav link

---

## Tasks

### Task 1: Create Training Log Backend App

- [ ] **Step 1: Create training_log directory and files**

Create `backend/training_log/` with `__init__.py` and `apps.py`

- [ ] **Step 2: Add 'training_log' to INSTALLED_APPS in settings.py**

Add `'training_log'` to the INSTALLED_APPS list.

- [ ] **Step 3: Create TrainingLogEntry model**

```python
from django.db import models
from django.utils import timezone


class TrainingLogEntry(models.Model):
    wrestler = models.ForeignKey('wrestlers.Wrestler', on_delete=models.CASCADE, related_name='training_logs')
    training = models.ForeignKey('trainings.Training', on_delete=models.SET_NULL, null=True, blank=True, related_name='training_logs')
    exercise = models.ForeignKey('exercises.Exercise', on_delete=models.CASCADE, related_name='training_logs')
    reps = models.PositiveIntegerField()
    sets = models.PositiveIntegerField(default=1)
    time_minutes = models.PositiveIntegerField(null=True, blank=True)
    weight_kg = models.DecimalField(null=True, blank=True, max_digits=5, decimal_places=2)
    rating = models.PositiveSmallIntegerField(choices=[(1,1),(2,2),(3,3),(4,4),(5,5)], default=3)
    notes = models.TextField(blank=True)
    logged_at = models.DateTimeField(default=timezone.now)
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)

    class Meta:
        ordering = ['-logged_at']
        indexes = [
            models.Index(fields=['wrestler']),
            models.Index(fields=['exercise']),
            models.Index(fields=['logged_at']),
            models.Index(fields=['training']),
        ]

    def __str__(self):
        return f"{self.wrestler} - {self.exercise.name} ({self.reps}x{self.sets})"
```

- [ ] **Step 4: Create serializers.py**

```python
from rest_framework import serializers
from .models import TrainingLogEntry


class TrainingLogEntrySerializer(serializers.ModelSerializer):
    wrestler_name = serializers.CharField(source='wrestler.__str__', read_only=True)
    exercise_name = serializers.CharField(source='exercise.name', read_only=True)
    training_date = serializers.DateField(source='training.date', read_only=True)

    class Meta:
        model = TrainingLogEntry
        fields = [
            'id', 'wrestler', 'wrestler_name', 'training', 'training_date',
            'exercise', 'exercise_name', 'reps', 'sets', 'time_minutes',
            'weight_kg', 'rating', 'notes', 'logged_at', 'created_at'
        ]


class TrainingLogStatsSerializer(serializers.Serializer):
    total_entries = serializers.IntegerField()
    unique_exercises = serializers.IntegerField()
    total_reps = serializers.IntegerField()
    avg_sets = serializers.FloatField()
    avg_rating = serializers.FloatField()
    this_week = serializers.IntegerField()
    top_exercises = serializers.ListField(child=serializers.DictField())
    progress = serializers.DictField()
```

- [ ] **Step 5: Create views.py**

```python
from rest_framework import viewsets
from rest_framework.decorators import api_view, permission_classes
from rest_framework.permissions import IsAuthenticated
from rest_framework.response import Response
from django.db.models import Count, Avg, Sum, F
from django.db.models.functions import Coalesce
from datetime import datetime, timedelta
from .models import TrainingLogEntry
from .serializers import TrainingLogEntrySerializer
from wrestlers.models import Wrestler


class TrainingLogEntryViewSet(viewsets.ModelViewSet):
    permission_classes = [IsAuthenticated]
    serializer_class = TrainingLogEntrySerializer

    def get_queryset(self):
        queryset = TrainingLogEntry.objects.all()
        wrestler = self.request.query_params.get('wrestler')
        exercise = self.request.query_params.get('exercise')
        date_from = self.request.query_params.get('date_from')
        date_to = self.request.query_params.get('date_to')

        if wrestler:
            queryset = queryset.filter(wrestler=wrestler)
        if exercise:
            queryset = queryset.filter(exercise=exercise)
        if date_from:
            queryset = queryset.filter(logged_at__date__gte=date_from)
        if date_to:
            queryset = queryset.filter(logged_at__date__lte=date_to)

        return queryset.select_related('wrestler', 'exercise', 'training')


@api_view(['GET'])
@permission_classes([IsAuthenticated])
def training_log_stats(request):
    wrestler_id = request.query_params.get('wrestler')
    today = datetime.now().date()
    week_start = today - timedelta(days=today.weekday())

    queryset = TrainingLogEntry.objects.all()
    if wrestler_id:
        queryset = queryset.filter(wrestler=wrestler_id)

    total_entries = queryset.count()
    unique_exercises = queryset.values('exercise').distinct().count()
    total_reps = queryset.aggregate(total=Coalesce(Sum(F('reps') * F('sets')), 0))['total'] or 0
    avg_sets = queryset.aggregate(avg=Avg('sets'))['avg'] or 0
    avg_rating = queryset.aggregate(avg=Avg('rating'))['avg'] or 0
    this_week = queryset.filter(logged_at__date__gte=week_start).count()

    top_exercises = queryset.values('exercise__name').annotate(
        count=Count('id')
    ).order_by('-count')[:5]

    progress = {}
    exercises = queryset.values('exercise', 'exercise__name').distinct()
    for ex in exercises:
        ex_id = ex['exercise']
        entries = queryset.filter(exercise=ex_id).order_by('logged_at')
        if entries.count() >= 2:
            first_reps = entries.first().reps * entries.first().sets
            last_reps = entries.last().reps * entries.last().sets
            if first_reps > 0:
                change = ((last_reps - first_reps) / first_reps) * 100
                progress[ex['exercise__name']] = {
                    'before': first_reps,
                    'after': last_reps,
                    'change_percent': round(change, 1)
                }

    return Response({
        'total_entries': total_entries,
        'unique_exercises': unique_exercises,
        'total_reps': total_reps,
        'avg_sets': round(avg_sets, 1),
        'avg_rating': round(avg_rating, 1),
        'this_week': this_week,
        'top_exercises': [{'name': e['exercise__name'], 'count': e['count']} for e in top_exercises],
        'progress': progress,
    })


@api_view(['GET'])
@permission_classes([IsAuthenticated])
def training_log_compare(request):
    wrestler1_id = request.query_params.get('wrestler1')
    wrestler2_id = request.query_params.get('wrestler2')

    if not wrestler1_id or not wrestler2_id:
        return Response({'error': 'Both wrestler1 and wrestler2 required'}, status=400)

    wrestler1 = Wrestler.objects.get(id=wrestler1_id)
    wrestler2 = Wrestler.objects.get(id=wrestler2_id)

    entries1 = TrainingLogEntry.objects.filter(wrestler=wrestler1)
    entries2 = TrainingLogEntry.objects.filter(wrestler=wrestler2)

    exercises1 = entries1.values('exercise', 'exercise__name').distinct()
    exercises2 = entries2.values('exercise', 'exercise__name').distinct()
    common_exercises = set(e['exercise'] for e in exercises1) & set(e['exercise'] for e in exercises2)

    comparison = []
    for ex_id in common_exercises:
        ex_name = entries1.filter(exercise=ex_id).first().exercise.name
        avg1 = entries1.filter(exercise=ex_id).aggregate(avg=Avg(F('reps') * F('sets')))['avg'] or 0
        avg2 = entries2.filter(exercise=ex_id).aggregate(avg=Avg(F('reps') * F('sets')))['avg'] or 0
        comparison.append({
            'exercise': ex_name,
            'wrestler1_avg': round(avg1, 1),
            'wrestler2_avg': round(avg2, 1)
        })

    return Response({
        'wrestler1': {'id': wrestler1.id, 'name': str(wrestler1)},
        'wrestler2': {'id': wrestler2.id, 'name': str(wrestler2)},
        'exercises': comparison
    })
```

- [ ] **Step 6: Create urls.py**

```python
from django.urls import path, include
from rest_framework.routers import DefaultRouter
from .views import TrainingLogEntryViewSet, training_log_stats, training_log_compare

router = DefaultRouter()
router.register(r'', TrainingLogEntryViewSet, basename='training-log')

urlpatterns = [
    path('stats/', training_log_stats, name='training-log-stats'),
    path('compare/', training_log_compare, name='training-log-compare'),
    path('', include(router.urls)),
]
```

- [ ] **Step 7: Add URL to main urls.py**

Add to `backend/wrestleDesk/urls.py`:
```python
path('api/v1/training-log/', include('training_log.urls')),
```

- [ ] **Step 8: Create migration**

Run: `cd backend && python manage.py makemigrations training_log`

---

### Task 2: Update Frontend API Types

- [ ] **Step 1: Add interfaces to frontend/src/lib/api.ts**

```typescript
export interface ITrainingLogEntry {
  id: number
  wrestler: number
  wrestler_name: string
  training: number | null
  training_date: string | null
  exercise: number
  exercise_name: string
  reps: number
  sets: number
  time_minutes: number | null
  weight_kg: number | null
  rating: number
  notes: string
  logged_at: string
  created_at: string
}

export interface ITrainingLogStats {
  total_entries: number
  unique_exercises: number
  total_reps: number
  avg_sets: number
  avg_rating: number
  this_week: number
  top_exercises: { name: string; count: number }[]
  progress: Record<string, { before: number; after: number; change_percent: number }>
}

export interface ITrainingLogCompare {
  wrestler1: { id: number; name: string }
  wrestler2: { id: number; name: string }
  exercises: { exercise: string; wrestler1_avg: number; wrestler2_avg: number }[]
}
```

---

### Task 3: Create Training Log Page

- [ ] **Step 1: Create frontend/src/app/(dashboard)/training-log/page.tsx**

Full page component with:
- Tab state (log | histrie | analyse)
- Log tab: Form with wrestler, training, exercise, reps, sets, time, weight, rating, notes
- Historie tab: Filter bar + table with entries
- Analyse tab: Stats summary, progress bars, wrestler comparison

```typescript
"use client"

import { useState, useEffect } from "react"
import { useAuth } from "@/lib/auth"
import { apiFetch, ITrainingLogEntry, ITrainingLogStats, ITrainingLogCompare, IWrestler, IExercise, ITraining, PaginatedResponse } from "@/lib/api"
import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card"
import { Button } from "@/components/ui/button"
import { Input } from "@/components/ui/input"
import { Badge } from "@/components/ui/badge"
import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select"
import { Textarea } from "@/components/ui/textarea"
import { PageSkeleton } from "@/components/ui/skeletons"
import { FadeIn } from "@/components/ui/animations"
import { ClipboardList, History, BarChart3, Plus, Star, Loader2 } from "lucide-react"

type TabType = "log" | "historie" | "analyse"

export default function TrainingLogPage() {
  const { token } = useAuth()
  const [activeTab, setActiveTab] = useState<TabType>("log")
  const [isLoading, setIsLoading] = useState(true)
  
  // Data states
  const [entries, setEntries] = useState<ITrainingLogEntry[]>([])
  const [stats, setStats] = useState<ITrainingLogStats | null>(null)
  const [wrestlers, setWrestlers] = useState<IWrestler[]>([])
  const [exercises, setExercises] = useState<IExercise[]>([])
  const [trainings, setTrainings] = useState<ITraining[]>([])
  
  // Filter states
  const [filterWrestler, setFilterWrestler] = useState<string>("")
  const [filterExercise, setFilterExercise] = useState<string>("")
  
  // Form state
  const [formData, setFormData] = useState({
    wrestler: "",
    training: "",
    exercise: "",
    reps: "",
    sets: "1",
    time_minutes: "",
    weight_kg: "",
    rating: "3",
    notes: ""
  })
  const [isSaving, setIsSaving] = useState(false)

  useEffect(() => {
    if (!token) return
    fetchData()
  }, [token])

  const fetchData = async () => {
    setIsLoading(true)
    try {
      const [entriesRes, wrestlersRes, exercisesRes, trainingsRes] = await Promise.all([
        apiFetch<PaginatedResponse<ITrainingLogEntry>>("/training-log/", { token }),
        apiFetch<PaginatedResponse<IWrestler>>("/wrestlers/?page_size=100", { token }),
        apiFetch<PaginatedResponse<IExercise>>("/exercises/?page_size=100", { token }),
        apiFetch<PaginatedResponse<ITraining>>("/trainings/?page_size=100", { token }),
      ])
      setEntries(entriesRes.results || [])
      setWrestlers(wrestlersRes.results || [])
      setExercises(exercisesRes.results || [])
      setTrainings(trainingsRes.results || [])
    } catch (err) {
      console.error("Failed to fetch data:", err)
    } finally {
      setIsLoading(false)
    }
  }

  const handleSubmit = async (e: React.FormEvent) => {
    e.preventDefault()
    if (!formData.wrestler || !formData.exercise || !formData.reps) return
    
    setIsSaving(true)
    try {
      await apiFetch("/training-log/", {
        method: "POST",
        token: token!,
        body: JSON.stringify({
          wrestler: parseInt(formData.wrestler),
          training: formData.training ? parseInt(formData.training) : null,
          exercise: parseInt(formData.exercise),
          reps: parseInt(formData.reps),
          sets: parseInt(formData.sets) || 1,
          time_minutes: formData.time_minutes ? parseInt(formData.time_minutes) : null,
          weight_kg: formData.weight_kg ? parseFloat(formData.weight_kg) : null,
          rating: parseInt(formData.rating),
          notes: formData.notes,
        }),
      })
      toast.success("Eintrag gespeichert")
      setFormData({ wrestler: "", training: "", exercise: "", reps: "", sets: "1", time_minutes: "", weight_kg: "", rating: "3", notes: "" })
      fetchData()
    } catch {
      toast.error("Fehler beim Speichern")
    } finally {
      setIsSaving(false)
    }
  }

  const filteredEntries = entries.filter(e => {
    if (filterWrestler && e.wrestler !== parseInt(filterWrestler)) return false
    if (filterExercise && e.exercise !== parseInt(filterExercise)) return false
    return true
  })

  const tabs = [
    { id: "log" as TabType, label: "Log", icon: ClipboardList },
    { id: "historie" as TabType, label: "Historie", icon: History },
    { id: "analyse" as TabType, label: "Analyse", icon: BarChart3 },
  ]

  if (isLoading) return <PageSkeleton />

  return (
    <div className="space-y-6">
      <FadeIn>
        <h1 className="text-2xl font-bold">Training Log</h1>
      </FadeIn>

      {/* Tabs */}
      <FadeIn delay={0.05}>
        <div className="flex gap-2 border-b pb-2">
          {tabs.map(tab => (
            <Button
              key={tab.id}
              variant={activeTab === tab.id ? "default" : "ghost"}
              onClick={() => setActiveTab(tab.id)}
              className="gap-2"
            >
              <tab.icon className="w-4 h-4" />
              {tab.label}
            </Button>
          ))}
        </div>
      </FadeIn>

      {/* Log Tab */}
      {activeTab === "log" && (
        <FadeIn delay={0.1}>
          <Card>
            <CardHeader>
              <CardTitle className="text-base">Neuer Eintrag</CardTitle>
            </CardHeader>
            <CardContent>
              <form onSubmit={handleSubmit} className="grid gap-4 md:grid-cols-2">
                <div>
                  <label className="text-sm font-medium">Ringer *</label>
                  <Select value={formData.wrestler} onValueChange={v => setFormData({...formData, wrestler: v})}>
                    <SelectTrigger><SelectValue placeholder="Ringer wählen" /></SelectTrigger>
                    <SelectContent>
                      {wrestlers.map(w => (
                        <SelectItem key={w.id} value={String(w.id)}>{w.first_name} {w.last_name}</SelectItem>
                      ))}
                    </SelectContent>
                  </Select>
                </div>
                <div>
                  <label className="text-sm font-medium">Training</label>
                  <Select value={formData.training} onValueChange={v => setFormData({...formData, training: v})}>
                    <SelectTrigger><SelectValue placeholder="Training (optional)" /></SelectTrigger>
                    <SelectContent>
                      {trainings.map(t => (
                        <SelectItem key={t.id} value={String(t.id)}>
                          {new Date(t.date).toLocaleDateString("de-DE")}
                        </SelectItem>
                      ))}
                    </SelectContent>
                  </Select>
                </div>
                <div>
                  <label className="text-sm font-medium">Übung *</label>
                  <Select value={formData.exercise} onValueChange={v => setFormData({...formData, exercise: v})}>
                    <SelectTrigger><SelectValue placeholder="Übung wählen" /></SelectTrigger>
                    <SelectContent>
                      {exercises.map(e => (
                        <SelectItem key={e.id} value={String(e.id)}>{e.name}</SelectItem>
                      ))}
                    </SelectContent>
                  </Select>
                </div>
                <div className="grid grid-cols-3 gap-2">
                  <div>
                    <label className="text-sm font-medium">Reps *</label>
                    <Input type="number" value={formData.reps} onChange={e => setFormData({...formData, reps: e.target.value})} />
                  </div>
                  <div>
                    <label className="text-sm font-medium">Sets</label>
                    <Input type="number" value={formData.sets} onChange={e => setFormData({...formData, sets: e.target.value})} />
                  </div>
                  <div>
                    <label className="text-sm font-medium">Zeit (min)</label>
                    <Input type="number" value={formData.time_minutes} onChange={e => setFormData({...formData, time_minutes: e.target.value})} />
                  </div>
                </div>
                <div>
                  <label className="text-sm font-medium">Gewicht (kg)</label>
                  <Input type="number" step="0.5" value={formData.weight_kg} onChange={e => setFormData({...formData, weight_kg: e.target.value})} />
                </div>
                <div>
                  <label className="text-sm font-medium">Bewertung</label>
                  <div className="flex gap-1">
                    {[1,2,3,4,5].map(star => (
                      <button key={star} type="button" onClick={() => setFormData({...formData, rating: String(star)})}>
                        <Star className={`w-5 h-5 ${star <= parseInt(formData.rating) ? "fill-yellow-400 text-yellow-400" : "text-gray-300"}`} />
                      </button>
                    ))}
                  </div>
                </div>
                <div className="md:col-span-2">
                  <label className="text-sm font-medium">Notizen</label>
                  <Textarea value={formData.notes} onChange={e => setFormData({...formData, notes: e.target.value})} />
                </div>
                <div className="md:col-span-2">
                  <Button type="submit" disabled={isSaving || !formData.wrestler || !formData.exercise || !formData.reps}>
                    {isSaving && <Loader2 className="w-4 h-4 mr-2 animate-spin" />}
                    Speichern
                  </Button>
                </div>
              </form>
            </CardContent>
          </Card>
        </FadeIn>
      )}

      {/* Historie Tab */}
      {activeTab === "historie" && (
        <FadeIn delay={0.1}>
          <Card>
            <CardHeader>
              <CardTitle className="text-base">Eintragsverlauf</CardTitle>
            </CardHeader>
            <CardContent className="space-y-4">
              <div className="flex gap-4 flex-wrap">
                <Select value={filterWrestler} onValueChange={setFilterWrestler}>
                  <SelectTrigger className="w-[160px]"><SelectValue placeholder="Ringer" /></SelectTrigger>
                  <SelectContent>
                    <SelectItem value="">Alle</SelectItem>
                    {wrestlers.map(w => (
                      <SelectItem key={w.id} value={String(w.id)}>{w.first_name} {w.last_name}</SelectItem>
                    ))}
                  </SelectContent>
                </Select>
                <Select value={filterExercise} onValueChange={setFilterExercise}>
                  <SelectTrigger className="w-[160px]"><SelectValue placeholder="Übung" /></SelectTrigger>
                  <SelectContent>
                    <SelectItem value="">Alle</SelectItem>
                    {exercises.map(e => (
                      <SelectItem key={e.id} value={String(e.id)}>{e.name}</SelectItem>
                    ))}
                  </SelectContent>
                </Select>
              </div>
              <div className="border rounded-lg overflow-hidden">
                <table className="w-full text-sm">
                  <thead className="bg-muted">
                    <tr>
                      <th className="p-2 text-left">Datum</th>
                      <th className="p-2 text-left">Ringer</th>
                      <th className="p-2 text-left">Übung</th>
                      <th className="p-2 text-left">Reps×Sets</th>
                      <th className="p-2 text-left">Zeit</th>
                      <th className="p-2 text-left">Gewicht</th>
                      <th className="p-2 text-left">Bewertung</th>
                    </tr>
                  </thead>
                  <tbody>
                    {filteredEntries.map(entry => (
                      <tr key={entry.id} className="border-t">
                        <td className="p-2">{new Date(entry.logged_at).toLocaleDateString("de-DE")}</td>
                        <td className="p-2">{entry.wrestler_name}</td>
                        <td className="p-2">{entry.exercise_name}</td>
                        <td className="p-2">{entry.reps}×{entry.sets}</td>
                        <td className="p-2">{entry.time_minutes ? `${entry.time_minutes}min` : "-"}</td>
                        <td className="p-2">{entry.weight_kg ? `${entry.weight_kg}kg` : "-"}</td>
                        <td className="p-2">
                          <div className="flex">
                            {[1,2,3,4,5].map(s => (
                              <Star key={s} className={`w-3 h-3 ${s <= entry.rating ? "fill-yellow-400 text-yellow-400" : "text-gray-300"}`} />
                            ))}
                          </div>
                        </td>
                      </tr>
                    ))}
                  </tbody>
                </table>
              </div>
            </CardContent>
          </Card>
        </FadeIn>
      )}

      {/* Analyse Tab */}
      {activeTab === "analyse" && stats && (
        <FadeIn delay={0.1}>
          <div className="grid gap-6 md:grid-cols-2">
            <Card>
              <CardHeader><CardTitle className="text-base">Zusammenfassung</CardTitle></CardHeader>
              <CardContent className="space-y-2 text-sm">
                <div className="flex justify-between"><span>Gesamt:</span><span className="font-medium">{stats.total_entries}</span></div>
                <div className="flex justify-between"><span>Übungen:</span><span className="font-medium">{stats.unique_exercises}</span></div>
                <div className="flex justify-between"><span>Wiederholungen:</span><span className="font-medium">{stats.total_reps}</span></div>
                <div className="flex justify-between"><span>Ø Sätze:</span><span className="font-medium">{stats.avg_sets}</span></div>
                <div className="flex justify-between"><span>Ø Bewertung:</span><span className="font-medium">{stats.avg_rating}/5</span></div>
                <div className="flex justify-between"><span>Diese Woche:</span><span className="font-medium">{stats.this_week}</span></div>
              </CardContent>
            </Card>
            <Card>
              <CardHeader><CardTitle className="text-base">Top Übungen</CardTitle></CardHeader>
              <CardContent className="space-y-2">
                {stats.top_exercises.map((ex, i) => (
                  <div key={i} className="flex items-center gap-2">
                    <span className="text-sm w-4">{i+1}.</span>
                    <span className="flex-1 text-sm">{ex.name}</span>
                    <Badge variant="secondary">{ex.count}x</Badge>
                  </div>
                ))}
              </CardContent>
            </Card>
          </div>
        </FadeIn>
      )}
    </div>
  )
}
```

- [ ] **Step 2: Add navigation link to sidebar**

Add to `frontend/src/components/layout/sidebar.tsx`:
```typescript
{/* Training Log */}
<SidebarItem href="/training-log" icon={ClipboardList} label="Training Log" />
```

---

## Testing

### Backend
- Run: `cd backend && python manage.py check`
- Run: `python manage.py migrate`
- Test endpoint: `curl -H "Authorization: Bearer <token>" http://localhost:8000/api/v1/training-log/`

### Frontend
- Run: `cd frontend && npm run lint`
- Visit: http://localhost:3000/training-log

---

## Notes
- Weight input uses `step="0.5"` for decimal support
- Training dropdown shows all trainings (could filter to past only)
- Rating displayed as filled/unfilled stars
- Entry form resets after successful submission
- Toast notifications require importing "sonner" toast