接续上一轮：推进浏览器验证与M428配置收拢

结论：已完成浏览器侧真实加载验证，M428/M429/M430 的配置入口进一步从 LinuxCNC INI/HALFILE/REMAP 来源生成，native 与 source-link 验证通过。

core/wasm_shims/pythonplugin/python_plugin.cc

@@ -1,5 +1,8 @@
 #include "pythonplugin/python_plugin.hh"
 
+#include <cstdio>
+#include <cstdlib>
+
 __attribute__((weak)) std::string handle_pyerror() {
     return "python disabled in wasm-safe probe";
 }
@@ -13,7 +16,30 @@ PythonPlugin *PythonPlugin::instantiate(struct _inittab *) {
     return python_plugin;
 }
 
-int PythonPlugin::configure(const char *, const char *) {
+int PythonPlugin::configure(const char *iniFilename, const char *section) {
+    if (!section) {
+        error_msg = "no section";
+        status = PLUGIN_NO_SECTION;
+        return status;
+    }
+
+    if (!iniFilename) {
+        iniFilename = std::getenv("INI_FILE_NAME");
+        if (!iniFilename) {
+            error_msg = "no inifile";
+            status = PLUGIN_NO_INIFILE;
+            return status;
+        }
+    }
+
+    FILE *file = std::fopen(iniFilename, "r");
+    if (!file) {
+        error_msg = "bad inifile";
+        status = PLUGIN_BAD_INIFILE;
+        return status;
+    }
+    std::fclose(file);
+
     status = PLUGIN_OK;
     return status;
 }
@@ -23,12 +49,17 @@ bool PythonPlugin::is_callable(const char *, const char *) {
 }
 
 int PythonPlugin::call(const char *,
-                       const char *,
+                       const char *callable,
                        boost::python::object,
                        boost::python::object,
                        boost::python::object &retval) {
+    if (!callable) {
+        return PLUGIN_NO_CALLABLE;
+    }
+
     retval = boost::python::object();
-    status = PLUGIN_NO_CALLABLE;
+    exception_msg = handle_pyerror();
+    status = PLUGIN_EXCEPTION;
     return status;
 }
 

core/wasm_shims/pythonplugin/python_plugin_probe_main.cc

@@ -8,10 +8,34 @@ int main() {
     if (!plugin->usable()) {
         return 2;
     }
+    if (plugin->configure(nullptr, nullptr) != PLUGIN_NO_SECTION) {
+        return 6;
+    }
+    if (plugin->configure("/tmp/cnc_sim_missing_python_plugin_probe.ini", "PYTHON") != PLUGIN_BAD_INIFILE) {
+        return 7;
+    }
     boost::python::object retval;
     if (plugin->run_string("noop", retval, false) != PLUGIN_OK) {
         return 3;
     }
+    if (plugin->call(nullptr, nullptr, boost::python::object(), boost::python::object(), retval) != PLUGIN_NO_CALLABLE) {
+        return 8;
+    }
+    if (plugin->plugin_status() != PLUGIN_OK) {
+        return 9;
+    }
+    if (plugin->call(nullptr, "noop", boost::python::object(), boost::python::object(), retval) != PLUGIN_EXCEPTION) {
+        return 10;
+    }
+    if (plugin->plugin_status() != PLUGIN_EXCEPTION) {
+        return 11;
+    }
+    if (plugin->last_exception().empty()) {
+        return 12;
+    }
+    if (plugin->run_string("noop", retval, false) != PLUGIN_OK) {
+        return 13;
+    }
     if (plugin->is_callable(nullptr, "noop")) {
         return 4;
     }
@@ -20,4 +44,3 @@ int main() {
     }
     return 0;
 }
-