继续完成 web-rtcp-5axis-sim-plan

结论：完成 LinuxCNC kinematics WASM ABI 覆盖，并将 web-rtcp-5axis-sim-plan 的 RTCP frame/boundary adapter 接到 xyzac-trt kinematics SDK；Node、build、browser smoke 验证通过。

wasm-port/tests/docs/node/verify_sim_configs_coverage_docs.mjs

@@ -45,6 +45,7 @@ for (const phrase of [
   "sim_configs_wasm_node_inventory_skip_UPSTREAM_DEMO=1",
   "build/wasm/sim-configs-inventory/skip-summary.tsv",
   "build/wasm/sim-configs-inventory/blocked-dependency-summary.tsv",
+  "build/wasm/sim-configs-inventory/remaining-skip-simulation-implementation-coverage.tsv",
   "remaining_skip_count=77",
   "remaining_skipped_main_program_rows=2",
   "remaining_skipped_main_program_promotion_allowed=0",
@@ -177,4 +178,30 @@ if (existsSync(remainingSkipAuditPath)) {
   }
 }
 
+const remainingSkipImplementationCoveragePath = resolve(
+  root,
+  "build/wasm/sim-configs-inventory/remaining-skip-simulation-implementation-coverage.tsv",
+);
+if (existsSync(remainingSkipImplementationCoveragePath)) {
+  const rows = parseTsv(readFileSync(remainingSkipImplementationCoveragePath, "utf8"));
+  assert.equal(rows.length, 77);
+  assert.deepEqual(
+    Object.fromEntries(rows.reduce((counts, row) => {
+      counts.set(row.skip_kind, (counts.get(row.skip_kind) ?? 0) + 1);
+      return counts;
+    }, new Map())),
+    {
+      "ASSET-ONLY": 65,
+      "L4-USER-M-PROCESS": 1,
+      NON_MAIN_CLASS: 10,
+      "UPSTREAM-DEMO": 1,
+    },
+  );
+  for (const row of rows) {
+    assert.equal(row.linuxcnc_source_available, "1");
+    assert.equal(row.simulation_coverage_ready, "1");
+    assert.equal(row.promotion_allowed, "0");
+  }
+}
+
 console.log("sim_configs_coverage_docs_node_smoke=ok");