Merge branch 'main' into fix/alembic-in-dockerfile

Adds alembic.ini and alembic/ directory to the production API image so
alembic upgrade head can run in-cluster as an init container.

Also carries migration 003 (make hashed_password nullable) from PR #66.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

api/Dockerfile

@@ -6,10 +6,8 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /app
-COPY api/pyproject.toml ./
+COPY pyproject.toml ./
-COPY api/src/ ./src/
+COPY src/ ./src/
-COPY api/alembic.ini ./
-COPY api/alembic/ ./alembic/
 RUN pip install --no-cache-dir --prefix=/install .
 
 FROM python:3.12-slim AS prod
@@ -17,9 +15,9 @@ FROM python:3.12-slim AS prod
 WORKDIR /app
 RUN adduser --system --group --uid 1000 app
 COPY --from=build /install /usr/local
-COPY api/src/ ./src/
+COPY src/ ./src/
-COPY api/alembic.ini ./
+COPY alembic.ini ./
-COPY api/alembic/ ./alembic/
+COPY alembic/ ./alembic/
 
 USER 1000
 EXPOSE 8000

api/alembic/versions/003_make_users_hashed_password_nullable.py

@@ -0,0 +1,26 @@
+"""Make users.hashed_password nullable.
+
+Better-Auth inserts users without hashed_password (passwords live in the
+accounts table). This column is now purely optional.
+
+Revision ID: 003_make_users_hashed_password_nullable
+Revises: 002_better_auth_tables
+Create Date: 2026-03-30
+"""
+
+import sqlalchemy as sa
+
+from alembic import op
+
+revision = "003_make_users_hashed_password_nullable"
+down_revision = "002_better_auth_tables"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.alter_column("users", "hashed_password", existing_type=sa.String(255), nullable=True)
+
+
+def downgrade() -> None:
+    op.alter_column("users", "hashed_password", existing_type=sa.String(255), nullable=False)

common/src/cartsnitch_common/models/user.py

@@ -21,7 +21,7 @@ class User(UUIDPrimaryKeyMixin, TimestampMixin, Base):
     __tablename__ = "users"
 
     email: Mapped[str] = mapped_column(String(255), nullable=False, unique=True)
-    hashed_password: Mapped[str] = mapped_column(String(255), nullable=False)
+    hashed_password: Mapped[str | None] = mapped_column(String(255), nullable=True)
     display_name: Mapped[str | None] = mapped_column(String(100))
     email_verified: Mapped[bool] = mapped_column(Boolean, nullable=False, server_default="false")
     image: Mapped[str | None] = mapped_column(Text, nullable=True)