Snapshot WIP: solver HP epic progress, BPHX/HX physics, BMAD skill refresh.

Capture uncommitted solver robustness work (regularization, domain errors, linear solver lifecycle, tube DP/MSH), web workbench updates, and synced BMAD skills across IDE agent folders before starting BPHX pressure-drop.

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

crates/solver/tests/inverse_calibration.rs

@@ -26,7 +26,7 @@ impl Component for MockCalibratedComponent {
     ) -> Result<(), ComponentError> {
         // Fix the edge states to a known value.
         // Per-edge state is (ṁ, P, h); P at index 1, h at index 2.
-        residuals[0] = state[1] - 300.0;
+        residuals[0] = state[1] - 300_000.0;
         residuals[1] = state[2] - 400.0;
         // CM1.3: mass-flow equation — pin ṁ at a seed value.
         residuals[2] = state[0] - 0.05;
@@ -128,7 +128,7 @@ fn test_inverse_calibration_f_ua() {
     let result = solver.solve(&mut sys);
 
     // Should converge quickly
-    assert!(dbg!(&result).is_ok());
+    assert!(result.is_ok());
     let converged = result.unwrap();
 
     // The control variable `f_ua` is at the end of the state vector