feat(psa): add PsaMemberMapping model and migration

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

backend/alembic/env.py

@@ -21,6 +21,7 @@ from app.models.kb_import import KBImport, KBImportNode  # noqa: F401
 from app.models.script_template import ScriptCategory, ScriptTemplate, ScriptGeneration  # noqa: F401
 from app.models.psa_connection import PsaConnection  # noqa: F401
 from app.models.psa_post_log import PsaPostLog  # noqa: F401
+from app.models.psa_member_mapping import PsaMemberMapping  # noqa: F401
 from app.core.config import settings
 
 # this is the Alembic Config object

backend/alembic/versions/061_add_psa_member_mappings.py

@@ -0,0 +1,60 @@
+"""Add psa_member_mappings table for user-to-CW-member mapping.
+
+Revision ID: 061
+Revises: 060
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+revision = "061"
+down_revision = "060"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "psa_member_mappings",
+        sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True),
+        sa.Column(
+            "psa_connection_id",
+            postgresql.UUID(as_uuid=True),
+            sa.ForeignKey("psa_connections.id", ondelete="CASCADE"),
+            nullable=False,
+            index=True,
+        ),
+        sa.Column(
+            "user_id",
+            postgresql.UUID(as_uuid=True),
+            sa.ForeignKey("users.id", ondelete="CASCADE"),
+            nullable=False,
+        ),
+        sa.Column("external_member_id", sa.String(100), nullable=False),
+        sa.Column("external_member_name", sa.String(200), nullable=False),
+        sa.Column("matched_by", sa.String(50), nullable=False),
+        sa.Column(
+            "created_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.func.now(),
+        ),
+        sa.Column(
+            "updated_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.func.now(),
+        ),
+        sa.UniqueConstraint(
+            "psa_connection_id", "user_id",
+            name="uq_psa_member_mapping_connection_user",
+        ),
+        sa.UniqueConstraint(
+            "psa_connection_id", "external_member_id",
+            name="uq_psa_member_mapping_connection_member",
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_table("psa_member_mappings")

backend/app/models/__init__.py

@@ -38,6 +38,7 @@ from .kb_import import KBImport, KBImportNode
 from .script_template import ScriptCategory, ScriptTemplate, ScriptGeneration
 from .psa_connection import PsaConnection
 from .psa_post_log import PsaPostLog
+from .psa_member_mapping import PsaMemberMapping
 
 __all__ = [
     "User",
@@ -90,4 +91,5 @@ __all__ = [
     "ScriptGeneration",
     "PsaConnection",
     "PsaPostLog",
+    "PsaMemberMapping",
 ]

backend/app/models/psa_member_mapping.py

@@ -0,0 +1,47 @@
+"""Maps ResolutionFlow users to CW members."""
+import uuid
+from datetime import datetime, timezone
+
+from sqlalchemy import String, DateTime, ForeignKey, UniqueConstraint
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+from sqlalchemy.dialects.postgresql import UUID
+
+from app.core.database import Base
+
+
+class PsaMemberMapping(Base):
+    __tablename__ = "psa_member_mappings"
+    __table_args__ = (
+        UniqueConstraint("psa_connection_id", "user_id", name="uq_psa_member_mapping_connection_user"),
+        UniqueConstraint("psa_connection_id", "external_member_id", name="uq_psa_member_mapping_connection_member"),
+    )
+
+    id: Mapped[uuid.UUID] = mapped_column(
+        UUID(as_uuid=True), primary_key=True, default=uuid.uuid4
+    )
+    psa_connection_id: Mapped[uuid.UUID] = mapped_column(
+        UUID(as_uuid=True),
+        ForeignKey("psa_connections.id", ondelete="CASCADE"),
+        nullable=False,
+        index=True,
+    )
+    user_id: Mapped[uuid.UUID] = mapped_column(
+        UUID(as_uuid=True),
+        ForeignKey("users.id", ondelete="CASCADE"),
+        nullable=False,
+    )
+    external_member_id: Mapped[str] = mapped_column(String(100), nullable=False)
+    external_member_name: Mapped[str] = mapped_column(String(200), nullable=False)
+    matched_by: Mapped[str] = mapped_column(String(50), nullable=False)  # 'auto_email', 'manual_admin', 'manual_self'
+    created_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), nullable=False, default=lambda: datetime.now(timezone.utc)
+    )
+    updated_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), nullable=False,
+        default=lambda: datetime.now(timezone.utc),
+        onupdate=lambda: datetime.now(timezone.utc),
+    )
+
+    # Relationships
+    psa_connection = relationship("PsaConnection", foreign_keys=[psa_connection_id])
+    user = relationship("User", foreign_keys=[user_id])