Phase 0: Add ModuleEnableSettings model and migration

- Created ModuleEnableSettings model with enabled flags for all modules
- Added migration for ModuleEnableSettings
- Updated imports across system module files

backend/igny8_core/modules/system/migrations/0007_add_module_enable_settings.py

@@ -0,0 +1,37 @@
+# Generated manually for Phase 0: Module Enable Settings
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('igny8_core_modules_system', '0006_alter_systemstatus_unique_together_and_more'),
+        ('igny8_core_auth', '0008_passwordresettoken_alter_industry_options_and_more'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='ModuleEnableSettings',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('planner_enabled', models.BooleanField(default=True, help_text='Enable Planner module')),
+                ('writer_enabled', models.BooleanField(default=True, help_text='Enable Writer module')),
+                ('thinker_enabled', models.BooleanField(default=True, help_text='Enable Thinker module')),
+                ('automation_enabled', models.BooleanField(default=True, help_text='Enable Automation module')),
+                ('site_builder_enabled', models.BooleanField(default=True, help_text='Enable Site Builder module')),
+                ('linker_enabled', models.BooleanField(default=True, help_text='Enable Linker module')),
+                ('optimizer_enabled', models.BooleanField(default=True, help_text='Enable Optimizer module')),
+                ('publisher_enabled', models.BooleanField(default=True, help_text='Enable Publisher module')),
+                ('account', models.ForeignKey(on_delete=models.CASCADE, to='igny8_core_auth.account', db_column='tenant_id')),
+            ],
+            options={
+                'db_table': 'igny8_module_enable_settings',
+            },
+        ),
+        migrations.AddConstraint(
+            model_name='moduleenablesettings',
+            constraint=models.UniqueConstraint(fields=('account',), name='unique_account_module_enable_settings'),
+        ),
+    ]
+