Decouple per-service Alembic migrations and fix cross-DB queries

Each service (blog, market, cart, events, federation, account) now owns
its own database schema with independent Alembic migrations. Removes the
monolithic shared/alembic/ that ran all migrations against a single DB.

- Add per-service alembic.ini, env.py, and 0001_initial.py migrations
- Add shared/db/alembic_env.py helper with table-name filtering
- Fix cross-DB FK in blog/models/snippet.py (users lives in db_account)
- Fix cart_impl.py cross-DB queries: fetch products and market_places
  via internal data endpoints instead of direct SQL joins
- Fix blog ghost_sync to fetch page_configs from cart via data endpoint
- Add products-by-ids and page-config-ensure data endpoints
- Update all entrypoint.sh to create own DB and run own migrations
- Cart now uses db_cart instead of db_market
- Add docker-compose.dev.yml, dev.sh for local development
- CI deploys both rose-ash swarm stack and rose-ash-dev compose stack
- Fix Quart namespace package crash (root_path in factory.py)

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

blog/alembic.ini

@@ -0,0 +1,35 @@
+[alembic]
+script_location = alembic
+sqlalchemy.url =
+
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s

blog/alembic/env.py

@@ -0,0 +1,20 @@
+from alembic import context
+from shared.db.alembic_env import run_alembic
+
+MODELS = [
+    "shared.models.ghost_content",
+    "shared.models.kv",
+    "shared.models.menu_item",
+    "shared.models.menu_node",
+    "shared.models.container_relation",
+    "blog.models.snippet",
+    "blog.models.tag_group",
+]
+
+TABLES = frozenset({
+    "posts", "authors", "post_authors", "tags", "post_tags", "post_likes",
+    "snippets", "tag_groups", "tag_group_tags",
+    "menu_items", "menu_nodes", "kv", "container_relations",
+})
+
+run_alembic(context.config, MODELS, TABLES)

blog/alembic/versions/0001_initial.py

@@ -0,0 +1,268 @@
+"""Initial blog tables
+
+Revision ID: blog_0001
+Revises: -
+Create Date: 2026-02-26
+"""
+
+import sqlalchemy as sa
+from alembic import op
+
+revision = "blog_0001"
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def _table_exists(conn, name):
+    result = conn.execute(sa.text(
+        "SELECT 1 FROM information_schema.tables WHERE table_schema='public' AND table_name=:t"
+    ), {"t": name})
+    return result.scalar() is not None
+
+
+def upgrade():
+    if _table_exists(op.get_bind(), "posts"):
+        return
+
+    op.create_table(
+        "tags",
+        sa.Column("id", sa.Integer(), autoincrement=True, nullable=False),
+        sa.Column("ghost_id", sa.String(64), nullable=False),
+        sa.Column("slug", sa.String(191), nullable=False),
+        sa.Column("name", sa.String(255), nullable=False),
+        sa.Column("description", sa.Text(), nullable=True),
+        sa.Column("visibility", sa.String(32), nullable=False),
+        sa.Column("feature_image", sa.Text(), nullable=True),
+        sa.Column("meta_title", sa.String(300), nullable=True),
+        sa.Column("meta_description", sa.Text(), nullable=True),
+        sa.Column("created_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("deleted_at", sa.DateTime(timezone=True), nullable=True),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("ghost_id"),
+    )
+    op.create_index("ix_tags_ghost_id", "tags", ["ghost_id"])
+    op.create_index("ix_tags_slug", "tags", ["slug"])
+
+    op.create_table(
+        "authors",
+        sa.Column("id", sa.Integer(), autoincrement=True, nullable=False),
+        sa.Column("ghost_id", sa.String(64), nullable=False),
+        sa.Column("slug", sa.String(191), nullable=False),
+        sa.Column("name", sa.String(255), nullable=False),
+        sa.Column("email", sa.String(255), nullable=True),
+        sa.Column("profile_image", sa.Text(), nullable=True),
+        sa.Column("cover_image", sa.Text(), nullable=True),
+        sa.Column("bio", sa.Text(), nullable=True),
+        sa.Column("website", sa.Text(), nullable=True),
+        sa.Column("location", sa.Text(), nullable=True),
+        sa.Column("facebook", sa.Text(), nullable=True),
+        sa.Column("twitter", sa.Text(), nullable=True),
+        sa.Column("created_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("deleted_at", sa.DateTime(timezone=True), nullable=True),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("ghost_id"),
+    )
+    op.create_index("ix_authors_ghost_id", "authors", ["ghost_id"])
+    op.create_index("ix_authors_slug", "authors", ["slug"])
+
+    op.create_table(
+        "posts",
+        sa.Column("id", sa.Integer(), autoincrement=True, nullable=False),
+        sa.Column("ghost_id", sa.String(64), nullable=False),
+        sa.Column("uuid", sa.String(64), nullable=False),
+        sa.Column("slug", sa.String(191), nullable=False),
+        sa.Column("title", sa.String(500), nullable=False),
+        sa.Column("html", sa.Text(), nullable=True),
+        sa.Column("plaintext", sa.Text(), nullable=True),
+        sa.Column("mobiledoc", sa.Text(), nullable=True),
+        sa.Column("lexical", sa.Text(), nullable=True),
+        sa.Column("feature_image", sa.Text(), nullable=True),
+        sa.Column("feature_image_alt", sa.Text(), nullable=True),
+        sa.Column("feature_image_caption", sa.Text(), nullable=True),
+        sa.Column("excerpt", sa.Text(), nullable=True),
+        sa.Column("custom_excerpt", sa.Text(), nullable=True),
+        sa.Column("visibility", sa.String(32), nullable=False),
+        sa.Column("status", sa.String(32), nullable=False),
+        sa.Column("featured", sa.Boolean(), nullable=False),
+        sa.Column("is_page", sa.Boolean(), nullable=False),
+        sa.Column("email_only", sa.Boolean(), nullable=False),
+        sa.Column("canonical_url", sa.Text(), nullable=True),
+        sa.Column("meta_title", sa.String(500), nullable=True),
+        sa.Column("meta_description", sa.Text(), nullable=True),
+        sa.Column("og_image", sa.Text(), nullable=True),
+        sa.Column("og_title", sa.String(500), nullable=True),
+        sa.Column("og_description", sa.Text(), nullable=True),
+        sa.Column("twitter_image", sa.Text(), nullable=True),
+        sa.Column("twitter_title", sa.String(500), nullable=True),
+        sa.Column("twitter_description", sa.Text(), nullable=True),
+        sa.Column("custom_template", sa.String(191), nullable=True),
+        sa.Column("reading_time", sa.Integer(), nullable=True),
+        sa.Column("comment_id", sa.String(191), nullable=True),
+        sa.Column("published_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("created_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("deleted_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("user_id", sa.Integer(), nullable=True),
+        sa.Column("publish_requested", sa.Boolean(), nullable=False, server_default="false"),
+        sa.Column("primary_author_id", sa.Integer(), nullable=True),
+        sa.Column("primary_tag_id", sa.Integer(), nullable=True),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("ghost_id"),
+        sa.UniqueConstraint("uuid"),
+        sa.ForeignKeyConstraint(["primary_author_id"], ["authors.id"], ondelete="SET NULL"),
+        sa.ForeignKeyConstraint(["primary_tag_id"], ["tags.id"], ondelete="SET NULL"),
+    )
+    op.create_index("ix_posts_ghost_id", "posts", ["ghost_id"])
+    op.create_index("ix_posts_slug", "posts", ["slug"])
+    op.create_index("ix_posts_user_id", "posts", ["user_id"])
+
+    op.create_table(
+        "post_authors",
+        sa.Column("post_id", sa.Integer(), nullable=False),
+        sa.Column("author_id", sa.Integer(), nullable=False),
+        sa.Column("sort_order", sa.Integer(), nullable=False),
+        sa.PrimaryKeyConstraint("post_id", "author_id"),
+        sa.ForeignKeyConstraint(["post_id"], ["posts.id"], ondelete="CASCADE"),
+        sa.ForeignKeyConstraint(["author_id"], ["authors.id"], ondelete="CASCADE"),
+    )
+
+    op.create_table(
+        "post_tags",
+        sa.Column("post_id", sa.Integer(), nullable=False),
+        sa.Column("tag_id", sa.Integer(), nullable=False),
+        sa.Column("sort_order", sa.Integer(), nullable=False),
+        sa.PrimaryKeyConstraint("post_id", "tag_id"),
+        sa.ForeignKeyConstraint(["post_id"], ["posts.id"], ondelete="CASCADE"),
+        sa.ForeignKeyConstraint(["tag_id"], ["tags.id"], ondelete="CASCADE"),
+    )
+
+    op.create_table(
+        "post_likes",
+        sa.Column("id", sa.Integer(), autoincrement=True, nullable=False),
+        sa.Column("user_id", sa.Integer(), nullable=False),
+        sa.Column("post_id", sa.Integer(), nullable=False),
+        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.text("now()")),
+        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.text("now()")),
+        sa.Column("deleted_at", sa.DateTime(timezone=True), nullable=True),
+        sa.PrimaryKeyConstraint("id"),
+        sa.ForeignKeyConstraint(["post_id"], ["posts.id"], ondelete="CASCADE"),
+    )
+
+    op.create_table(
+        "snippets",
+        sa.Column("id", sa.Integer(), autoincrement=True, nullable=False),
+        sa.Column("user_id", sa.Integer(), nullable=False),
+        sa.Column("name", sa.String(255), nullable=False),
+        sa.Column("value", sa.Text(), nullable=False),
+        sa.Column("visibility", sa.String(20), nullable=False, server_default="private"),
+        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.text("now()")),
+        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.text("now()")),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("user_id", "name", name="uq_snippets_user_name"),
+    )
+    op.create_index("ix_snippets_user_id", "snippets", ["user_id"])
+    op.create_index("ix_snippets_visibility", "snippets", ["visibility"])
+
+    op.create_table(
+        "tag_groups",
+        sa.Column("id", sa.Integer(), autoincrement=True, nullable=False),
+        sa.Column("name", sa.String(255), nullable=False),
+        sa.Column("slug", sa.String(191), nullable=False),
+        sa.Column("feature_image", sa.Text(), nullable=True),
+        sa.Column("colour", sa.String(32), nullable=True),
+        sa.Column("sort_order", sa.Integer(), nullable=False),
+        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.text("now()")),
+        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.text("now()")),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("slug"),
+    )
+
+    op.create_table(
+        "tag_group_tags",
+        sa.Column("id", sa.Integer(), autoincrement=True, nullable=False),
+        sa.Column("tag_group_id", sa.Integer(), nullable=False),
+        sa.Column("tag_id", sa.Integer(), nullable=False),
+        sa.PrimaryKeyConstraint("id"),
+        sa.ForeignKeyConstraint(["tag_group_id"], ["tag_groups.id"], ondelete="CASCADE"),
+        sa.ForeignKeyConstraint(["tag_id"], ["tags.id"], ondelete="CASCADE"),
+        sa.UniqueConstraint("tag_group_id", "tag_id", name="uq_tag_group_tag"),
+    )
+
+    op.create_table(
+        "menu_items",
+        sa.Column("id", sa.Integer(), autoincrement=True, nullable=False),
+        sa.Column("post_id", sa.Integer(), nullable=False),
+        sa.Column("sort_order", sa.Integer(), nullable=False),
+        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.text("now()")),
+        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.text("now()")),
+        sa.Column("deleted_at", sa.DateTime(timezone=True), nullable=True),
+        sa.PrimaryKeyConstraint("id"),
+    )
+    op.create_index("ix_menu_items_post_id", "menu_items", ["post_id"])
+    op.create_index("ix_menu_items_sort_order", "menu_items", ["sort_order"])
+
+    op.create_table(
+        "menu_nodes",
+        sa.Column("id", sa.Integer(), autoincrement=True, nullable=False),
+        sa.Column("container_type", sa.String(32), nullable=False),
+        sa.Column("container_id", sa.Integer(), nullable=False),
+        sa.Column("parent_id", sa.Integer(), nullable=True),
+        sa.Column("sort_order", sa.Integer(), nullable=False),
+        sa.Column("depth", sa.Integer(), nullable=False),
+        sa.Column("label", sa.String(255), nullable=False),
+        sa.Column("slug", sa.String(255), nullable=True),
+        sa.Column("href", sa.String(1024), nullable=True),
+        sa.Column("icon", sa.String(64), nullable=True),
+        sa.Column("feature_image", sa.Text(), nullable=True),
+        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.text("now()")),
+        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.text("now()")),
+        sa.Column("deleted_at", sa.DateTime(timezone=True), nullable=True),
+        sa.PrimaryKeyConstraint("id"),
+        sa.ForeignKeyConstraint(["parent_id"], ["menu_nodes.id"], ondelete="SET NULL"),
+    )
+    op.create_index("ix_menu_nodes_container", "menu_nodes", ["container_type", "container_id"])
+    op.create_index("ix_menu_nodes_parent_id", "menu_nodes", ["parent_id"])
+
+    op.create_table(
+        "kv",
+        sa.Column("key", sa.String(120), nullable=False),
+        sa.Column("value", sa.Text(), nullable=True),
+        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False),
+        sa.PrimaryKeyConstraint("key"),
+    )
+
+    op.create_table(
+        "container_relations",
+        sa.Column("id", sa.Integer(), autoincrement=True, nullable=False),
+        sa.Column("parent_type", sa.String(32), nullable=False),
+        sa.Column("parent_id", sa.Integer(), nullable=False),
+        sa.Column("child_type", sa.String(32), nullable=False),
+        sa.Column("child_id", sa.Integer(), nullable=False),
+        sa.Column("sort_order", sa.Integer(), nullable=False),
+        sa.Column("label", sa.String(255), nullable=True),
+        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.text("now()")),
+        sa.Column("deleted_at", sa.DateTime(timezone=True), nullable=True),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("parent_type", "parent_id", "child_type", "child_id", name="uq_container_relations_parent_child"),
+    )
+    op.create_index("ix_container_relations_parent", "container_relations", ["parent_type", "parent_id"])
+    op.create_index("ix_container_relations_child", "container_relations", ["child_type", "child_id"])
+
+
+def downgrade():
+    op.drop_table("container_relations")
+    op.drop_table("kv")
+    op.drop_table("menu_nodes")
+    op.drop_table("menu_items")
+    op.drop_table("tag_group_tags")
+    op.drop_table("tag_groups")
+    op.drop_table("snippets")
+    op.drop_table("post_likes")
+    op.drop_table("post_tags")
+    op.drop_table("post_authors")
+    op.drop_table("posts")
+    op.drop_table("authors")
+    op.drop_table("tags")

blog/bp/blog/ghost/ghost_sync.py

@@ -21,8 +21,7 @@ from sqlalchemy.ext.asyncio import AsyncSession
 from models.ghost_content import (
     Post, Author, Tag, PostAuthor, PostTag
 )
-from shared.models.page_config import PageConfig
-
+from shared.infrastructure.data_client import fetch_data
 from shared.infrastructure.ghost_admin_token import make_ghost_admin_jwt
 
 GHOST_ADMIN_API_URL = os.environ["GHOST_ADMIN_API_URL"]
@@ -218,14 +217,13 @@ async def _upsert_post(sess: AsyncSession, gp: Dict[str, Any], author_map: Dict[
     finally:
         sess.autoflush = old_autoflush
 
-    # Auto-create PageConfig for pages
+    # Auto-create PageConfig for pages (lives in db_cart, accessed via internal API)
     if obj.is_page:
-        existing_pc = (await sess.execute(
-            select(PageConfig).where(PageConfig.container_type == "page", PageConfig.container_id == obj.id)
-        )).scalar_one_or_none()
-        if existing_pc is None:
-            sess.add(PageConfig(container_type="page", container_id=obj.id, features={}))
-            await sess.flush()
+        await fetch_data(
+            "cart", "page-config-ensure",
+            params={"container_type": "page", "container_id": obj.id},
+            required=False,
+        )
 
     return obj, old_status
 

blog/entrypoint.sh

@@ -10,10 +10,33 @@ if [[ -n "${DATABASE_HOST:-}" && -n "${DATABASE_PORT:-}" ]]; then
   done
 fi
 
-# Run DB migrations only if RUN_MIGRATIONS=true (blog service only)
-if [[ "${RUN_MIGRATIONS:-}" == "true" ]]; then
-  echo "Running Alembic migrations..."
-  (cd shared && alembic upgrade head)
+# Create own database + run own migrations
+if [[ "${RUN_MIGRATIONS:-}" == "true" && -n "${ALEMBIC_DATABASE_URL:-}" ]]; then
+  python3 -c "
+import os, re
+url = os.environ['ALEMBIC_DATABASE_URL']
+m = re.match(r'postgresql\+\w+://([^:]+):([^@]+)@([^:]+):(\d+)/(.+)', url)
+if not m:
+    print('Could not parse ALEMBIC_DATABASE_URL, skipping DB creation')
+    exit(0)
+user, password, host, port, dbname = m.groups()
+
+import psycopg
+conn = psycopg.connect(
+    f'postgresql://{user}:{password}@{host}:{port}/postgres',
+    autocommit=True,
+)
+cur = conn.execute('SELECT 1 FROM pg_database WHERE datname = %s', (dbname,))
+if not cur.fetchone():
+    conn.execute(f'CREATE DATABASE {dbname}')
+    print(f'Created database {dbname}')
+else:
+    print(f'Database {dbname} already exists')
+conn.close()
+" || echo "DB creation failed (non-fatal), continuing..."
+
+  echo "Running blog Alembic migrations..."
+  (cd blog && alembic upgrade head)
 fi
 
 # Clear Redis page cache on deploy
@@ -28,5 +51,11 @@ print('Redis cache cleared.')
 fi
 
 # Start the app
-echo "Starting Hypercorn (${APP_MODULE:-app:app})..."
-PYTHONUNBUFFERED=1 exec hypercorn "${APP_MODULE:-app:app}" --bind 0.0.0.0:${PORT:-8000} --workers ${WORKERS:-2} --keep-alive 75
+RELOAD_FLAG=""
+if [[ "${RELOAD:-}" == "true" ]]; then
+  RELOAD_FLAG="--reload"
+  echo "Starting Hypercorn (${APP_MODULE:-app:app}) with auto-reload..."
+else
+  echo "Starting Hypercorn (${APP_MODULE:-app:app})..."
+fi
+PYTHONUNBUFFERED=1 exec hypercorn "${APP_MODULE:-app:app}" --bind 0.0.0.0:${PORT:-8000} --workers ${WORKERS:-2} --keep-alive 75 ${RELOAD_FLAG}

blog/models/snippet.py

@@ -2,7 +2,7 @@ from __future__ import annotations
 
 from datetime import datetime
 
-from sqlalchemy import Integer, String, Text, DateTime, ForeignKey, UniqueConstraint, Index, func
+from sqlalchemy import Integer, String, Text, DateTime, UniqueConstraint, Index, func
 from sqlalchemy.orm import Mapped, mapped_column
 
 from shared.db.base import Base
@@ -16,9 +16,7 @@ class Snippet(Base):
     )
 
     id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
-    user_id: Mapped[int] = mapped_column(
-        ForeignKey("users.id", ondelete="CASCADE"), nullable=False,
-    )
+    user_id: Mapped[int] = mapped_column(Integer, nullable=False, index=True)
     name: Mapped[str] = mapped_column(String(255), nullable=False)
     value: Mapped[str] = mapped_column(Text, nullable=False)
     visibility: Mapped[str] = mapped_column(