现有组件功能与Amesim组件比较对齐，补全功能；仿真服务启动环境检测，旧版json工程文件适配读取

tests/test_native_friction.py

@@ -0,0 +1,45 @@
+"""Native event integration checked against independent Amesim 2404 runs."""
+import json
+from pathlib import Path
+import subprocess
+import tempfile
+import unittest
+import numpy as np
+from app.simulation.native_codegen.compiler import compile_native_program
+from app.simulation.native_codegen.build import build_native
+from tests.test_native_catalog import Circuit
+
+FIXTURE=Path(__file__).parent/'fixtures/amesim-component-semantics-2404.json'
+
+class NativeFrictionReferenceTests(unittest.TestCase):
+    def test_amesim_stick_slip_endstops_and_joint_circuits(self):
+        for case in json.loads(FIXTURE.read_text(encoding='utf-8'))['cases']:
+            b=Circuit()
+            for c in case['components']:b.add(c['type'],c['name'],**c['parameters'])
+            for l,r in case['connections']:b.net.connect(*l,*r)
+            program=compile_native_program(b.net)
+            build=build_native(program)
+            methods=('BDF','RK45') if case['name'] in ('friction_simple','friction_band') else ('BDF',)
+            for method in methods:
+                with self.subTest(case=case['name'],method=method),tempfile.TemporaryDirectory() as tmp:
+                    path=Path(tmp)/'result.json'
+                    subprocess.run([str(build.executable),'--method',method,'--stop','3','--sample-step','.001',
+                        '--max-step','.002','--rtol','1e-9','--timeout','30','--output',str(path)],
+                        check=True,capture_output=True,timeout=45)
+                    result=json.loads(path.read_text())
+                    self.assertTrue(result['success'],result)
+                    self.assertEqual(result['simulatedUntil'],3)
+                    for key,expected in case['series'].items():
+                        actual=np.interp(case['time'],result['series']['time'],result['series'][key])
+                        field=key.split('.')[-1]
+                        atol=1 if field.startswith('p') else .001 if field.startswith('T') else .002 if field in ('a','Ffric','Fmin','Fmax','force') else 3e-6
+                        np.testing.assert_allclose(actual,expected,rtol=0,atol=atol,err_msg=key)
+                    if case['name'].startswith('friction_'):
+                        # Stored mode makes result replay independent of query order.
+                        state=result['finalState']
+                        inputs=[' '.join(map(str,[t,*state])) for t in (2.8,.1,2.8)]
+                        rows=subprocess.run([str(build.executable),'--probe'],input='\n'.join(inputs)+'\n',
+                            text=True,capture_output=True,check=True,timeout=15).stdout.splitlines()
+                        self.assertEqual(json.loads(rows[0]),json.loads(rows[2]))
+
+if __name__=='__main__':unittest.main()