虚拟HAL完全满足Web数控仿真

结论：motion controller matrix 已显式关联 external-offsets、QtDragon multi-joint、vismach remap sims 的 LinuxCNC configs/sim source evidence，并纳入 SDK、browser diagnostics artifact 与 release validation；虚拟 HAL 仍只作为 Web 仿真替代层，不声明 Linux kernel hard-realtime ABI、外部硬件驱动 ABI 或 native HAL module ABI。

wasm-port/runtime/sdk/README.md

@@ -313,7 +313,9 @@ private page state.
   controller runtime. It supports HAL pin/signal/param storage, `setp`,
   `sets`, `newsig`, `net`, `show`, `getp`, `gets`, `loadrt`/`loadusr` stubs,
   `addf`, thread start/stop, and servo-period motion stepping for browser
-  simulation and Node dashboards.
+  simulation and Node dashboards. The motion controller matrix rows also carry
+  LinuxCNC `configs/sim` evidence for external offsets, QtDragon multi-joint,
+  and vismach remap simulation coverage.
 - `createVirtualHalSourceComplianceReport()` is the machine-readable gate for
   the virtual HAL source rule. It maps replacement targets, runtime
   capabilities, and HAL pin families back to LinuxCNC source files such as