First commit of claude's rework in django + vanillajs fronted

apps/sessions/admin.py

@@ -0,0 +1,36 @@
+from django.contrib import admin
+
+from .models import FreePracticeSession, PRSSession, PRSStage, SpeedShootingSession
+
+
+class PRSStageInline(admin.TabularInline):
+    model = PRSStage
+    extra = 0
+    fields = [
+        'order', 'position', 'distance_m',
+        'target_width_cm', 'target_height_cm', 'max_time_s', 'shots_count',
+        'actual_elevation', 'actual_windage',
+        'hits', 'score', 'time_taken_s',
+    ]
+
+
+@admin.register(PRSSession)
+class PRSSessionAdmin(admin.ModelAdmin):
+    list_display  = ['__str__', 'user', 'date', 'location', 'competition_name', 'category']
+    list_filter   = ['date']
+    search_fields = ['user__email', 'competition_name', 'location']
+    inlines       = [PRSStageInline]
+
+
+@admin.register(FreePracticeSession)
+class FreePracticeSessionAdmin(admin.ModelAdmin):
+    list_display  = ['__str__', 'user', 'date', 'location', 'distance_m', 'rounds_fired']
+    list_filter   = ['date']
+    search_fields = ['user__email', 'name', 'location']
+
+
+@admin.register(SpeedShootingSession)
+class SpeedShootingSessionAdmin(admin.ModelAdmin):
+    list_display  = ['__str__', 'user', 'date', 'format', 'rounds_fired']
+    list_filter   = ['date']
+    search_fields = ['user__email', 'name', 'format']