feat(phase-4b): backend business-logic, 8 entities, 32 endpoints, 58 tests

app/models/__init__.py

@@ -1,14 +1,36 @@
 """SQLAlchemy ORM models for the CRM system."""
 
+from app.models.account import Account, AccountSize, Industry
+from app.models.activity import Activity, ActivityType
 from app.models.base import Base, OrgScopedMixin, SoftDeleteMixin, TimestampMixin
+from app.models.contact import Contact
+from app.models.deal import Deal, DealStage
+from app.models.deal_stage_history import DealStageHistory
+from app.models.note import Note, NoteParentType
 from app.models.org import Org
+from app.models.tag import Tag
+from app.models.tag_link import TagLink, TagLinkParentType
 from app.models.user import User, UserRole
 
 __all__ = [
+    "Account",
+    "AccountSize",
+    "Activity",
+    "ActivityType",
     "Base",
+    "Contact",
+    "Deal",
+    "DealStage",
+    "DealStageHistory",
+    "Industry",
+    "Note",
+    "NoteParentType",
     "Org",
     "OrgScopedMixin",
     "SoftDeleteMixin",
+    "Tag",
+    "TagLink",
+    "TagLinkParentType",
     "TimestampMixin",
     "User",
     "UserRole",