增加解释器WASM程序结束夹具

结论：解释器核心WASM验证新增program_end_modal_reset夹具，并通过LinuxCNC _setup状态读回覆盖程序结束后的modal复位行为。

wasm-port/docs/compatibility-validation.md

@@ -201,13 +201,14 @@ for `minimal_linear`, `arc_semantics`, `length_units`, `modal_incremental`,
 `comment_logging`, `numbered_params`, `tool_semantics`, `tool_table_setup`,
 `tool_reload`, `canned_cycles`, `cutter_comp_motion`, `threading_sync`,
 `nurbs_g5_semantics`, `nurbs_g6_semantics`, `state_tag_motion`,
-`canon_runtime_edges`, and `namedparam_semantics`, plus the `g1_zero_feed`,
-`arc_radius_mismatch`, `arc_zero_radius`, `g53_incremental`, `tool_not_found`,
-and `tool_length_offset_not_found` negative fixtures. The WASM interpreter
-file path additionally covers `file_open_reset`, `percent_file_finish`, and
-`oword_subroutine`. OPFS validation is limited to the JavaScript host-boundary
-adapter plus the INI browser smoke harness. Full browser coverage, full SDK
-coverage, and full machine-session validation remain future work.
+`canon_runtime_edges`, `program_end_modal_reset`, and `namedparam_semantics`,
+plus the `g1_zero_feed`, `arc_radius_mismatch`, `arc_zero_radius`,
+`g53_incremental`, `tool_not_found`, and `tool_length_offset_not_found`
+negative fixtures. The WASM interpreter file path additionally covers
+`file_open_reset`, `percent_file_finish`, and `oword_subroutine`. OPFS
+validation is limited to the JavaScript host-boundary adapter plus the INI
+browser smoke harness. Full browser coverage, full SDK coverage, and full
+machine-session validation remain future work.
 
 The current fixture expectations validate standalone behavior against both the
 vendored LinuxCNC source path and an upstream `rs274` side-by-side baseline for