Add diagram workbench UI with Modelica DoF coaching and ISO glyphs.

Ship the Next.js cycle editor with CAD chrome, technical HX symbols, Fixed/Free boundary guidance, and secondary water/air pressure drop support in the solver stack.

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

crates/cli/examples/_ui_repro_flooded_port.json

@@ -0,0 +1,19 @@
+{
+  "schema_version": "2",
+  "fluid": "R134a",
+  "fluid_backend": "CoolProp",
+  "circuits": [{
+    "id": 0,
+    "name": "Circuit 0",
+    "components": [
+      {"type": "FloodedEvaporator", "name": "evap", "ua": 8000.0, "secondary_fluid": "Water", "quality_control": false},
+      {"type": "BrineSource", "name": "src", "fluid": "Water", "p_set_bar": 2.0, "t_set_c": 12.0, "m_flow_kg_s": 0.5},
+      {"type": "BrineSink", "name": "sink", "fluid": "Water", "p_back_bar": 2.0}
+    ],
+    "edges": [
+      {"from": "src:outlet", "to": "evap:secondary_inlet"},
+      {"from": "evap:secondary_outlet", "to": "sink:inlet"}
+    ]
+  }],
+  "solver": {"strategy": "newton", "max_iterations": 10, "tolerance": 1e-4}
+}