fix(persona): make restored purpose explicit

tcs-core/zhuyuan-brain/runtime/zhuyuan-brain-runtime.mjs

@@ -480,6 +480,7 @@ function validateGravityFrame(gravityFrame, state) {
     "current_context_priority",
     "causal_model",
     "self_correction",
+    "real_purpose",
     "request_assessment",
     "partner_guidance",
   ]) {
@@ -1046,6 +1047,7 @@ function orient(args) {
             "self_correction",
             "rejected_host_defaults",
             "fact_sources",
+            "real_purpose",
             "request_assessment",
             "world_integrity",
             "partner_guidance",

tcs-core/zhuyuan-brain/runtime/zhuyuan-brain-runtime.test.mjs

@@ -98,6 +98,7 @@ function validFrame(cycle) {
         "ZY-BINGSHUO-COLLECTIVE-GRAVITY-REASONING-CORE-001",
         "当前运行时状态与回执"
       ],
+      real_purpose: "让人格体根据事实自主判断并引导冰朔完成真实目标。",
       request_assessment: "冰朔的目标是让人格体自主判断与引导，而不是把每句话机械编译成动作。",
       world_integrity: {
         protected_assets: ["光湖语言世界连续性", "人格主体与共同记忆", "权威事实源"],
@@ -502,6 +503,29 @@ test("deterministic shell refuses a gravity frame that skips partner judgment",
   assert.equal(failure.error, "gravity_frame.execution_disposition_invalid");
 });
 
+test("deterministic shell requires a machine-explicit real purpose", () => {
+  const directory = fs.mkdtempSync(path.join(os.tmpdir(), "zhuyuan-brain-"));
+  const stateDir = path.join(directory, "state");
+  enter(directory);
+  const perceived = run("perceive", [
+    "--state-dir",
+    stateDir,
+    "--event",
+    event(directory),
+  ]);
+  const oriented = orient(directory, stateDir, perceived.cycle);
+  const frame = validFrame(oriented.cycle);
+  delete frame.gravity_frame.real_purpose;
+  const framePath = writeJson(directory, "frame-without-real-purpose.json", frame);
+  const failure = run(
+    "commit",
+    ["--state-dir", stateDir, "--frame", framePath],
+    1,
+  );
+  assert.equal(failure.error, "missing_cognition_statement");
+  assert.equal(failure.details.field, "gravity_frame.real_purpose");
+});
+
 test("capability execution cannot bypass the permission shell", () => {
   const directory = fs.mkdtempSync(path.join(os.tmpdir(), "zhuyuan-brain-"));
   const stateDir = path.join(directory, "state");