说明virtual HAL仿真提升

结论：补充 virtual HAL 成果对 Web 数控仿真的提升说明，并用 docs smoke 固化关键提升点；baseline 保持 28/28/131/0，Python remap、tool DB、external user-M hard block 未解锁。

wasm-port/docs/sim-config-coverage-promotion-analysis.md

@@ -51,6 +51,34 @@ motion feedback. It does not unlock rows whose defining behavior is Python
 remap runtime, tool database process protocol, external user-M process state,
 or upstream-invalid demo code.
 
+## Web Simulation Improvements From Virtual HAL
+
+Using the completed virtual HAL evidence improves the Web CNC simulation in
+these concrete ways:
+
+- Browser and Node simulation no longer need host `halcmd`, `halrun`, or a
+  native motion-controller process for HAL-level diagnostics.
+- UI workflows can inspect and update HAL pins, signals, and params through a
+  shared source-derived registry instead of private page state.
+- Simulation pages can run deterministic `halcmd`-style command fixtures such
+  as `setp`, `sets`, `newsig`, `net`, `show`, `getp`, `gets`, `loadrt`,
+  `loadusr`, `addf`, `start`, and `stop`.
+- Motion feedback can advance through servo-period stepping so dashboards can
+  display axis/joint target and feedback state without host realtime services.
+- Browser diagnostics artifacts can carry source compliance, sim-config source
+  coverage, command fixture, promotion candidate, macro/load fixture, and
+  manifest-backed motion matrix evidence in one release surface.
+- Release URL workflows can show the promotion candidate summary, including
+  8 diagnostics-ready candidates across 3 families and 17 source files.
+- OPFS/session workflows can persist and reload virtual HAL-backed diagnostics
+  evidence for repeatable browser validation.
+
+These improvements make the Web simulation more complete and inspectable for
+HAL/UI/machine-state cases. They are still evidence and simulation-surface
+improvements only: they do not implement Linux kernel hard realtime, native HAL
+module ABI loading, Python remap runtime, tool DB process protocol, external
+user-M process execution, or new JavaScript-owned CNC semantics.
+
 ## Promotion Rules After Virtual HAL
 
 A sim-config case can move forward only when all of these are true: