feat: enforce single tool type with port config

- Replace interfaces array with interface_type string and requires_port boolean
- Add database migration for schema change
- Update backend model, API schemas, and validation
- Update frontend types and tool workshop UI
- Add dropdown for interface type selection
- Conditionally show/hide port fields based on requires_port
- Update tests and mock data
- All frontend tests pass (37/37)
- Frontend typecheck and lint pass

apps/api/src/models/tool_type.py

@@ -18,7 +18,8 @@ class ToolType(UUIDPrimaryKeyMixin, TimestampMixin, Base):
     display_name: Mapped[str] = mapped_column(String(255), nullable=False)
     description: Mapped[str | None] = mapped_column(Text, nullable=True)
     category: Mapped[str] = mapped_column(String(50), nullable=False, default="other")
-    interfaces: Mapped[list[str]] = mapped_column(JSON, default=list, nullable=False)
+    interface_type: Mapped[str] = mapped_column(String(20), nullable=False, default="web")
+    requires_port: Mapped[bool] = mapped_column(Boolean, default=True, nullable=False)
     default_port: Mapped[int] = mapped_column(nullable=False)
     definition_type: Mapped[str] = mapped_column(
         String(20), nullable=False, default="compose"