Initial commit: clean project structure

- Backend: FastAPI + SQLAlchemy + Celery (Python 3.11+)
- Frontend: Vue 3 + TypeScript + Pinia + Tailwind
- Admin Frontend: separate Vue 3 app for management
- Docker Compose: 9 services orchestration
- Specs: design prototypes, memory system PRD, product roadmap

Cleanup performed:
- Removed temporary debug scripts from backend root
- Removed deprecated admin_app.py (embedded UI)
- Removed duplicate docs from admin-frontend
- Updated .gitignore for Vite cache and egg-info

backend/alembic/versions/0008_add_pages_to_stories.py

@@ -0,0 +1,25 @@
+"""add pages column to stories
+
+Revision ID: 0008_add_pages_to_stories
+Revises: 0007_add_push_configs_and_events
+Create Date: 2026-01-20
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+
+# revision identifiers, used by Alembic.
+revision = '0008_add_pages_to_stories'
+down_revision = '0007_add_push_configs_and_events'
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.add_column('stories', sa.Column('pages', postgresql.JSON(), nullable=True))
+
+
+def downgrade() -> None:
+    op.drop_column('stories', 'pages')