feat: implement step 2 species confirm view and template

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

plants/templates/plants/identify_confirm.html

@@ -1,5 +1,54 @@
 {% extends "plants/base.html" %}
 {% block title %}Confirm species — PlantDB{% endblock %}
 {% block content %}
-<p>Confirm step (coming soon)</p>
+
+<div class="d-flex align-items-center gap-2 mb-3">
+    <a href="{% url 'identify_upload' %}" class="btn btn-sm btn-outline-secondary">←</a>
+    <h5 class="mb-0">Is this your plant?</h5>
+</div>
+
+<p class="text-muted small mb-3">Tap the correct species, then confirm.</p>
+
+<form method="post" id="confirm-form">
+    {% csrf_token %}
+    <input type="hidden" name="match_idx" id="match_idx_input" value="0">
+
+    <div class="d-flex flex-column gap-2 mb-4" id="match-list">
+        {% for m in matches %}
+        <div class="match-card d-flex align-items-center gap-3 p-3 border rounded"
+             style="cursor:pointer; {% if forloop.first %}border-color:#52b788 !important; background:#f0faf4;{% endif %}"
+             data-idx="{{ forloop.counter0 }}"
+             onclick="selectMatch(this)">
+            <div class="flex-grow-1">
+                <div class="fw-bold">{{ m.scientific_name }}</div>
+                {% if m.common_names %}
+                <div class="text-muted small">{{ m.common_names|join:", " }}</div>
+                {% endif %}
+                <div class="text-muted small fst-italic">{{ m.family }}</div>
+            </div>
+            <div>
+                <span class="badge {% if m.score >= 0.70 %}bg-success{% elif m.score >= 0.30 %}bg-warning text-dark{% else %}bg-secondary{% endif %}">
+                    {% widthratio m.score 1 100 %}%
+                </span>
+            </div>
+        </div>
+        {% endfor %}
+    </div>
+
+    <button type="submit" class="btn btn-success w-100" id="confirm-btn">
+        Use selected species →
+    </button>
+</form>
+
+<script>
+function selectMatch(el) {
+    document.querySelectorAll('.match-card').forEach(c => {
+        c.style.borderColor = '';
+        c.style.background = '';
+    });
+    el.style.borderColor = '#52b788';
+    el.style.background = '#f0faf4';
+    document.getElementById('match_idx_input').value = el.dataset.idx;
+}
+</script>
 {% endblock %}

plants/tests/test_identify_views.py

@@ -73,3 +73,46 @@ def test_upload_post_plantnet_error_rerenders(client, settings):
             })
     assert resp.status_code == 200
     assert b'No match found' in resp.content
+
+
+def _set_matches(client):
+    session = client.session
+    session['identify_matches'] = [
+        {'scientific_name': 'Liatris spicata', 'common_names': ['Blazing star'],
+         'score': 0.94, 'gbif_id': '123', 'family': 'Asteraceae', 'genus': 'Liatris'},
+        {'scientific_name': 'Liatris pycnostachya', 'common_names': ['Prairie blazing star'],
+         'score': 0.04, 'gbif_id': '456', 'family': 'Asteraceae', 'genus': 'Liatris'},
+    ]
+    session['identify_image_paths'] = [{'path': 'plants/temp_identify/x_0.jpg', 'organ': 'flower'}]
+    session.save()
+
+
+@pytest.mark.django_db
+def test_confirm_get_with_session(client):
+    _set_matches(client)
+    resp = client.get(reverse('identify_confirm'))
+    assert resp.status_code == 200
+    assert b'Liatris spicata' in resp.content
+
+
+@pytest.mark.django_db
+def test_confirm_post_stores_selection_and_redirects(client):
+    _set_matches(client)
+    with patch('plants.views.identify.vpc_search', return_value=[
+        {'slug': 'liatris-spicata', 'common_name': 'Liatris spicata', 'scientific_name': 'Liatris spicata', 'thumbnail_url': '', 'source': 'vpc'},
+    ]):
+        resp = client.post(reverse('identify_confirm'), {'match_idx': '0'})
+    assert resp.status_code == 302
+    assert reverse('identify_fields') in resp['Location']
+    assert client.session['identify_selected']['scientific_name'] == 'Liatris spicata'
+    assert len(client.session['identify_vpc_results']) == 1
+
+
+@pytest.mark.django_db
+def test_confirm_post_handles_vpc_failure(client):
+    _set_matches(client)
+    from plants.services.vpc import VPCError
+    with patch('plants.views.identify.vpc_search', side_effect=VPCError('down')):
+        resp = client.post(reverse('identify_confirm'), {'match_idx': '0'})
+    assert resp.status_code == 302
+    assert client.session['identify_vpc_results'] == []