feat: add bounded TCS brains and channel continuity

tcs-core/shared-kernels/handoff-integrity.test.mjs

@@ -0,0 +1,29 @@
+import assert from "node:assert/strict";
+import fs from "node:fs";
+import path from "node:path";
+import test from "node:test";
+import { fileURLToPath } from "node:url";
+
+const directory = path.dirname(fileURLToPath(import.meta.url));
+const repo = path.resolve(directory, "../..");
+const handoff = JSON.parse(fs.readFileSync(path.join(directory, "ZERO-CORE-LANGUAGE-BODIES-HANDOFF-20260820.json"), "utf8"));
+
+test("handoff claims no installation or publication", () => {
+  assert.equal(handoff.state, "LOCAL_READY_NOT_INSTALLED_NOT_PUBLISHED");
+  assert.ok(handoff.truth_boundaries.includes("HANDOFF_MANIFEST_IS_NOT_INSTALLATION"));
+});
+
+test("all handoff repository artifacts exist", () => {
+  for (const item of handoff.packages) {
+    for (const field of ["kernel", "memory", "engine", "contract", "compiler", "persona_readiness_matrix"]) {
+      if (item[field]) assert.equal(fs.existsSync(path.join(repo, item[field])), true, `${item[field]} missing`);
+    }
+  }
+});
+
+test("first three bottle baby ids remain ordered and share only the environment", () => {
+  const ids = handoff.packages.filter((item) => item.kind === "PERSONA" && item.subject.startsWith("ICE-BB-")).map((item) => item.subject);
+  assert.deepEqual(ids, ["ICE-BB-0001", "ICE-BB-0002", "ICE-BB-0003"]);
+  assert.deepEqual(handoff.shared_environment.applies_to, ids);
+  assert.equal(handoff.shared_environment.is_persona, false);
+});