feat: component

backend/uframe/ir.py

@@ -355,3 +355,22 @@ class StateDecl(IRNode):
     """State persistence: state "name" "/path.json"."""
     state_name: str = ""
     path: str = ""
+
+
+# ---------------------------------------------------------------------------
+# Components (Phase 8)
+# ---------------------------------------------------------------------------
+
+@dataclass
+class ComponentDef(IRNode):
+    """Component definition: component name(arg1, arg2)."""
+    comp_name: str = ""
+    params: list[str] = field(default_factory=list)
+    # children = the component body template
+
+
+@dataclass
+class ComponentUse(IRNode):
+    """Component instantiation: name "arg1" "arg2"."""
+    comp_name: str = ""
+    args: list[str] = field(default_factory=list)