feat(04-04-visual-distinction): Add custom vs program workout badges on WorkoutSelectPage

- Fetch custom workouts for authenticated user
- Display 'Anpassad' (custom) or 'Program' badge on each workout card
- Add badge component with orange accent for custom, muted color for program
- Badge positioned bottom-right of workout icon
- Responsive styling consistent with Gravl dark theme
- All build checks pass

.pm-checkpoint.json

@@ -1,12 +1,13 @@
 {
-  "lastRun": "2026-03-01T11:31:00+01:00",
-  "status": "in_progress",
+  "lastRun": "2026-03-01T17:38:00+01:00",
+  "status": "completed",
   "phase": "04-workout-modification",
   "activeTask": "04-03-frontend-workout-edit",
-  "tasksCompleted": ["01-input-ux", "02-flexible-sets", "03-design-polish", "04-01-schema-migration", "04-02-backend-api"],
-  "nextTask": "04-03-frontend-workout-edit",
-  "agentSession": "swift-trail",
-  "agentType": "claude-coding-agent",
-  "spawnTime": "2026-03-01T11:31:00+01:00",
-  "notes": "Spawned Claude coding agent (swift-trail) with exec+pty in background. Task: Build Edit Workout button, ExercisePicker modal, swap/add exercise flows, fork confirmation dialog, and save to custom_workouts API. Monitoring progress."
+  "tasksCompleted": ["01-input-ux", "02-flexible-sets", "03-design-polish", "04-01-schema-migration", "04-02-backend-api", "04-03-frontend-workout-edit"],
+  "nextTask": "04-04-visual-distinction",
+  "agentSession": "claude-code-frontend",
+  "agentType": "claude-code-local-exec",
+  "spawnTime": "2026-03-01T17:38:00+01:00",
+  "result": "Phase 04-03 complete. Edit workflow implemented: ExercisePicker modal, swap/add/remove exercise flows, fork confirmation dialog, API integration (POST/PUT custom-workouts). All success criteria met. Ready for 04-04.",
+  "notes": "Previous attempt hit Gemini quota limit. Recovered at 17:38. Advancing to 04-04: Add visual distinction badges (custom vs program) on WorkoutSelectPage."
 }

frontend/src/App.css

@@ -2958,3 +2958,43 @@
   border: 2px solid var(--border); display: flex; align-items: center; justify-content: center;
 }
 .warmup-item.done .warmup-check { background: var(--success); border-color: var(--success); color: white; }
+
+/* Workout badge styling */
+.workout-badge-container {
+  position: relative;
+  display: flex;
+  align-items: flex-end;
+}
+
+.workout-badge {
+  position: absolute;
+  bottom: -6px;
+  right: -6px;
+  font-size: var(--font-xs);
+  font-weight: 600;
+  padding: var(--space-1) var(--space-2);
+  border-radius: var(--radius-sm);
+  border: 1px solid transparent;
+  text-transform: uppercase;
+  letter-spacing: 0.5px;
+  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
+  white-space: nowrap;
+  color: white;
+}
+
+.workout-badge.custom {
+  background: var(--accent);
+  color: white;
+  border-color: var(--accent);
+}
+
+.workout-badge.program {
+  background: var(--text-muted);
+  color: white;
+  border-color: var(--text-muted);
+  opacity: 0.7;
+}
+
+.workout-select-card:hover .workout-badge {
+  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
+}

frontend/src/pages/WorkoutSelectPage.jsx

@@ -17,11 +17,13 @@ const getWorkoutColor = (name) => {
 
 function WorkoutSelectPage({ onBack, onSelectWorkout }) {
   const [program, setProgram] = useState(null)
+  const [customWorkouts, setCustomWorkouts] = useState([])
   const [loading, setLoading] = useState(true)
   const [selectedWorkout, setSelectedWorkout] = useState(null)
 
   useEffect(() => {
     fetchProgram()
+    fetchCustomWorkouts()
   }, [])
 
   const fetchProgram = async () => {
@@ -36,6 +38,24 @@ function WorkoutSelectPage({ onBack, onSelectWorkout }) {
     }
   }
 
+  const fetchCustomWorkouts = async () => {
+    try {
+      const token = localStorage.getItem('token')
+      if (!token) return
+      const res = await fetch(`${API_URL}/custom-workouts`, {
+        headers: { 'Authorization': `Bearer ${token}` }
+      })
+      const data = await res.json()
+      setCustomWorkouts(data || [])
+    } catch (err) {
+      console.error('Failed to fetch custom workouts:', err)
+    }
+  }
+
+  const isWorkoutCustom = (programDayId) => {
+    return customWorkouts.some(cw => cw.source_program_day_id === programDayId)
+  }
+
   const handleSelect = (workout) => {
     setSelectedWorkout(workout)
   }
@@ -76,6 +96,7 @@ function WorkoutSelectPage({ onBack, onSelectWorkout }) {
             const color = getWorkoutColor(workout.name)
             const isSelected = selectedWorkout?.id === workout.id
             const exerciseCount = workout.exercises?.filter(e => e.name).length || 0
+            const isCustom = isWorkoutCustom(workout.id)
 
             return (
               <div
@@ -84,8 +105,13 @@ function WorkoutSelectPage({ onBack, onSelectWorkout }) {
                 style={{ '--workout-color': color }}
                 onClick={() => handleSelect(workout)}
               >
-                <div className="workout-icon" style={{ background: color }}>
-                  <Icon name={iconName} size={28} />
+                <div className="workout-badge-container">
+                  <div className="workout-icon" style={{ background: color }}>
+                    <Icon name={iconName} size={28} />
+                  </div>
+                  <span className={`workout-badge ${isCustom ? 'custom' : 'program'}`}>
+                    {isCustom ? 'Anpassad' : 'Program'}
+                  </span>
                 </div>
                 <div className="workout-details">
                   <h3>{workout.name}</h3>