按建议继续完成后续工作

结论：upstream rs274 side-by-side 基线已扩展到 threading/rigid tap canonical 调用；完整 native 验证已通过。

wasm-port/tools/verify_native_linuxcnc_fixture_baseline.sh

@@ -23,6 +23,7 @@ FIXTURES=(
   percent_file_finish
   position_params
   spindle_orient
+  threading_sync
   tool_reload
 )
 
@@ -224,6 +225,33 @@ normalize_standalone_events() {
         next
       }
 
+      if (line ~ /^START_SPEED_FEED_SYNCH /) {
+        split(line, fields, /[[:space:]]+/)
+        for (i in fields) {
+          split(fields[i], pair, "=")
+          values[pair[1]] = pair[2]
+        }
+        print "START_SPEED_FEED_SYNCH|" norm(values["feed_per_revolution"]) "|" values["velocity_mode"]
+        delete values
+        next
+      }
+
+      if (line == "STOP_SPEED_FEED_SYNCH") {
+        print line
+        next
+      }
+
+      if (line ~ /^RIGID_TAP /) {
+        split(line, fields, /[[:space:]]+/)
+        for (i in fields) {
+          split(fields[i], pair, "=")
+          values[pair[1]] = pair[2]
+        }
+        print "RIGID_TAP|" norm(values["x"]) "|" norm(values["y"]) "|" norm(values["z"])
+        delete values
+        next
+      }
+
       # Upstream rs274 does not emit saicanon WAIT for the M66 case.
       if (line ~ /^WAIT /) {
         next
@@ -476,6 +504,25 @@ normalize_upstream_rs274_output() {
         next
       }
 
+      if (line ~ /^START_SPEED_FEED_SYNC\(/) {
+        args = args_of(line)
+        split(args, values, ",")
+        print "START_SPEED_FEED_SYNCH|" norm(values[1]) "|" trim(values[2])
+        next
+      }
+
+      if (line == "STOP_SPEED_FEED_SYNCH()") {
+        print "STOP_SPEED_FEED_SYNCH"
+        next
+      }
+
+      if (line ~ /^RIGID_TAP\(/) {
+        args = args_of(line)
+        split(args, values, ",")
+        print "RIGID_TAP|" norm(values[1]) "|" norm(values[2]) "|" norm(values[3])
+        next
+      }
+
       if (line ~ /^SET_FEED_MODE\(/) {
         args = args_of(line)
         split(args, values, ",")