Add daily-stone page showing a different mineral each day

New dailystone app with 207 minerals scraped from Wikipedia.
Each day displays a different mineral with photos, formula,
properties, description, and history. Page theme color matches
the mineral's typical appearance.

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

dailystone/migrations/0001_initial.py

@@ -0,0 +1,38 @@
+# Generated by Django 6.0.3 on 2026-03-30 12:19
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Mineral',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=200, unique=True)),
+                ('formula', models.CharField(blank=True, max_length=200)),
+                ('category', models.CharField(blank=True, max_length=200)),
+                ('crystal_system', models.CharField(blank=True, max_length=200)),
+                ('mohs_hardness', models.CharField(blank=True, max_length=50)),
+                ('luster', models.CharField(blank=True, max_length=200)),
+                ('streak', models.CharField(blank=True, max_length=200)),
+                ('specific_gravity', models.CharField(blank=True, max_length=100)),
+                ('color_description', models.CharField(blank=True, max_length=300)),
+                ('color_hex', models.CharField(default='#6b7280', max_length=7)),
+                ('description', models.TextField(blank=True)),
+                ('history', models.TextField(blank=True)),
+                ('image_urls', models.JSONField(default=list)),
+                ('wikipedia_url', models.URLField(blank=True, max_length=500)),
+                ('day_of_year', models.IntegerField(blank=True, null=True, unique=True)),
+            ],
+            options={
+                'ordering': ['day_of_year'],
+            },
+        ),
+    ]