fossy: Add created_time to CommunityTrackProposal model

Also move templates into app.

conservancy/fossy/admin.py

@@ -5,5 +5,4 @@ from .models import CommunityTrackProposal
 
 @admin.register(CommunityTrackProposal)
 class CommunityTrackProposalAdmin(admin.ModelAdmin):
-    list_display = ['title', 'primary_proposer']
-    pass
+    list_display = ['created_time', 'title', 'primary_proposer']

conservancy/fossy/migrations/0003_communitytrackproposal_created_time.py

@@ -0,0 +1,20 @@
+# Generated by Django 3.2.19 on 2024-02-27 02:56
+
+import datetime
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('fossy', '0002_auto_20230130_1841'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='communitytrackproposal',
+            name='created_time',
+            field=models.DateTimeField(auto_now_add=True, default=datetime.datetime(2023, 3, 19, 0, 0)),
+            preserve_default=False,
+        ),
+    ]

conservancy/fossy/models.py

@@ -4,6 +4,7 @@ from django.db import models
 
 
 class CommunityTrackProposal(models.Model):
+    created_time = models.DateTimeField(auto_now_add=True)
     uuid = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
     title = models.CharField('Track title', max_length=255)
     description = models.TextField(