feat: store VPC raw scrape data and add reset button

Species.vpc_raw (JSONField) stores the full scrape payload at import time.
vpc_species_reset view restores bloom_months, sunlight, max_height_cm etc.
from that snapshot. If vpc_raw is missing (species imported before this
feature), it re-scrapes from VPC on demand and saves the result.
Reset button appears on plant detail page for any plant with a VPC species.
A 'next' hidden field returns the user to the same plant after reset.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

plants/migrations/0006_species_vpc_raw.py

@@ -0,0 +1,16 @@
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('plants', '0005_species_vpc_slug'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='species',
+            name='vpc_raw',
+            field=models.JSONField(blank=True, null=True),
+        ),
+    ]

plants/models.py

@@ -26,6 +26,7 @@ class Species(models.Model):
     api_image_url = models.URLField(blank=True)
     perenual_id = models.IntegerField(unique=True, null=True, blank=True)
     vpc_slug = models.CharField(max_length=200, blank=True, db_index=True)
+    vpc_raw = models.JSONField(null=True, blank=True)
 
     class Meta:
         ordering = ['common_name']

plants/templates/plants/plant_detail.html

@@ -43,6 +43,18 @@
     <span class="care-chip" style="background:#e8f5e9; color:#1b5e20;">🌱 {{ plant.species.growth_rate }}</span>
     {% endif %}
 </div>
+{% if plant.species.vpc_slug %}
+<div class="mb-3">
+    <form method="post" action="{% url 'vpc_species_reset' plant.species.pk %}">
+        {% csrf_token %}
+        <input type="hidden" name="next" value="{% url 'plant_detail' plant.pk %}">
+        <button type="submit" class="btn btn-sm btn-outline-secondary"
+                onclick="return confirm('Reset species data to original VPC values?')">
+            ↩ Reset to original VPC data
+        </button>
+    </form>
+</div>
+{% endif %}
 {% endif %}
 
 {% load plant_extras %}

plants/urls.py

@@ -16,4 +16,5 @@ urlpatterns = [
     path('species/search/', species.species_search, name='species_search'),
     path('species/select/', species.species_select, name='species_select'),
     path('species/select/vpc/', species.vpc_select, name='vpc_select'),
+    path('species/<int:species_pk>/reset-vpc/', species.vpc_species_reset, name='vpc_species_reset'),
 ]

plants/views/species.py

@@ -1,6 +1,7 @@
 from concurrent.futures import ThreadPoolExecutor
-from django.shortcuts import render, redirect
+from django.shortcuts import render, redirect, get_object_or_404
 from django.urls import reverse
+from django.views.decorators.http import require_POST
 from plants.models import Species
 from plants.services.perenual import search_species as perenual_search, PerenualError
 from plants.services import vpc as vpc_service
@@ -93,5 +94,35 @@ def vpc_select(request):
         description=data['description'],
         api_image_url=data['api_image_url'],
         vpc_slug=slug,
+        vpc_raw=data,
     )
     return redirect(f"{reverse('plant_add')}?species_id={species.pk}")
+
+
+@require_POST
+def vpc_species_reset(request, species_pk):
+    """Restore species fields to the original VPC scrape values."""
+    species = get_object_or_404(Species, pk=species_pk, vpc_slug__gt='')
+    raw = species.vpc_raw
+    if not raw:
+        # vpc_raw missing (imported before this feature) — re-scrape
+        try:
+            raw = vpc_service.scrape_plant(species.vpc_slug)
+            species.vpc_raw = raw
+        except VPCError:
+            pass
+
+    if raw:
+        species.common_name = raw.get('common_name', species.common_name)
+        species.scientific_name = raw.get('scientific_name', species.scientific_name)
+        species.bloom_months = raw.get('bloom_months', species.bloom_months)
+        species.max_height_cm = raw.get('max_height_cm', species.max_height_cm)
+        species.sunlight = raw.get('sunlight', species.sunlight)
+        species.growth_rate = raw.get('growth_rate', species.growth_rate)
+        species.description = raw.get('description', species.description)
+        species.api_image_url = raw.get('api_image_url', species.api_image_url)
+        species.save()
+
+    # Redirect back to the plant that triggered the reset, if provided
+    next_url = request.POST.get('next') or reverse('plant_list')
+    return redirect(next_url)