Add parallel Placement pipeline for routing-first topology plans.

Ship a free, analysis-independent job that writes placement_plan.json (domains/satellites, no mm) with API, SSE progress, and a minimal project UI.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/pinscopex/functional_groups.py

@@ -132,6 +132,12 @@ def build_functional_groups(
     return FunctionalGroupsReport(objective="routing", domains=domains, groups=groups)
 
 
+# Alias used by the dedicated Placement pipeline (same topology artifact).
+build_placement_plan = build_functional_groups
+PlacementPlan = FunctionalGroupsReport
+
+
+
 def load_capacitance_farads(comp: Component) -> float | None:
     """Crystal CL from SimpleComponentSpecs.values, if present."""
     specs = comp.specs