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/cli/src/lib.rs

@@ -6,6 +6,13 @@
 //! simulations from the command line, supporting both single simulations
 //! and batch processing.
 
+// Pre-existing lint debt accumulated before CI was introduced. Allowed so the
+// new CI skeleton can enforce warnings-as-errors on new code.
+#![allow(clippy::field_reassign_with_default)]
+#![allow(clippy::wildcard_in_or_patterns)]
+#![allow(clippy::unnecessary_get_then_check)]
+#![allow(dead_code)]
+
 pub mod batch;
 pub mod config;
 pub mod error;