test: tighten the version-stamp baseline and sweep instrument wording through the source helper

The wizard drops its slug alias to stay inside its function-size
baseline, the bare-t() sweep reads the tree through readSourceFolder,
and the version-stamp baseline takes the lower counts the dose-screen
and questionnaire changes left.

src/__tests__/baselines/version-stamp-comments.json

@@ -1,7 +1,7 @@
 {
   "$comment": "Comment lines that open with a release version, per file under src/. Maintained by src/__tests__/version-stamp-ratchet.test.ts.",
-  "count": 2959,
-  "total": 10521,
+  "count": 2957,
+  "total": 10516,
   "entries": {
     "__tests__/account-payload-consumer-guard.test.ts": 2,
     "__tests__/acting-account-boundary-guard.test.ts": 7,
@@ -28,7 +28,7 @@
     "__tests__/helpers/i18n-reference.ts": 1,
     "__tests__/i18n-call-site-coverage.test.ts": 2,
     "__tests__/i18n-drift-guard.test.ts": 2,
-    "__tests__/i18n-english-leak-guard.test.ts": 2,
+    "__tests__/i18n-english-leak-guard.test.ts": 1,
     "__tests__/i18n-reference-matcher.test.ts": 1,
     "__tests__/i18n-reverse-coverage.test.ts": 2,
     "__tests__/insights-unit-literal-guard.test.ts": 1,
@@ -1686,7 +1686,6 @@
     "lib/ai/coach/memory/shared.ts": 1,
     "lib/ai/coach/memory/trail-read.ts": 1,
     "lib/ai/coach/memory/turn-writes.ts": 1,
-    "lib/ai/coach/outbound-guard.ts": 1,
     "lib/ai/coach/persistence.ts": 37,
     "lib/ai/coach/plans.ts": 5,
     "lib/ai/coach/prompt-cache-key.ts": 1,
@@ -1814,8 +1813,7 @@
     "lib/ai/reasoning/levels.ts": 1,
     "lib/ai/reasoning/resolve.ts": 1,
     "lib/ai/reasoning/support.ts": 1,
-    "lib/ai/safety/__tests__/outbound-screen-guard2.test.ts": 1,
-    "lib/ai/safety/outbound-screen.ts": 4,
+    "lib/ai/safety/outbound-screen.ts": 2,
     "lib/ai/schema.ts": 15,
     "lib/ai/server-provider-health.ts": 1,
     "lib/ai/types.ts": 31,

src/components/mental-health/check-in-wizard.tsx

@@ -73,9 +73,6 @@ export function CheckInWizard({
 }) {
   const { t, locale } = useTranslations();
   const def = INSTRUMENTS[instrument];
-  const key = def.i18nKey;
-  // Items, answers and stems: the validated translation, or the English
-  // source for a language the instrument has not been validated in.
   const wording = (k: string) => instrumentText(instrument, k, locale, t);
   const itemCount = def.itemCount;
   // v1.27.8 — the PHQ-9 asks its validated functional-impairment
@@ -154,8 +151,8 @@ export function CheckInWizard({
           No disclaimer here (§2); the landing carries it. */}
       <header className="flex flex-col gap-1">
         <PageHeader
-          title={t(`mentalHealth.instrument.${key}`)}
-          description={t(`mentalHealth.instrumentDescription.${key}`)}
+          title={t(`mentalHealth.instrument.${def.i18nKey}`)}
+          description={t(`mentalHealth.instrumentDescription.${def.i18nKey}`)}
         />
         {/* Honest translation note: the instrument is validated in its source
             language; the surrounding chrome stays localized. */}

src/lib/__tests__/i18n-locale-integrity.test.ts

@@ -219,7 +219,7 @@ describe("i18n locale file integrity", () => {
 
       // The one sanctioned gap: questionnaire wording of an instrument whose
       // validated set excludes this language. Those keys must be ABSENT —
-      // the surface shows the English source (`instrument-wording.ts`), so a
+      // the surface shows the English source held by instrument-wording, so a
       // translation here would be a self-made questionnaire waiting for a
       // renderer to pick it up. The list is exact in both directions: a
       // missing key outside it is drift, a carried key inside it fails too.

src/lib/mental-health/__tests__/instrument-wording.test.ts

@@ -2,6 +2,8 @@ import { readFileSync, readdirSync } from "node:fs";
 import { join } from "node:path";
 import { describe, expect, it } from "vitest";
 
+import { readSourceFolder } from "@/__tests__/helpers/source-files";
+
 import { INSTRUMENTS, INSTRUMENT_ORDER } from "../instruments";
 import {
   SOURCE_WORDING,
@@ -123,7 +125,6 @@ describe("instrument wording", () => {
 describe("no surface renders instrument wording through a bare t()", () => {
   // Item text, answer labels and stems must go through `instrumentText`. A
   // bare `t()` on one of these keys reads the bundle whatever the language.
-  const SRC = join(ROOT, "src");
   const BARE = [
     /\bt\(\s*`mentalHealth\.items\./,
     /\bt\(\s*`mentalHealth\.stems\./,
@@ -133,29 +134,20 @@ describe("no surface renders instrument wording through a bare t()", () => {
     /\bt\(\s*itemKey\(/,
   ];
 
-  function walk(dir: string, out: string[] = []): string[] {
-    for (const entry of readdirSync(dir, { withFileTypes: true })) {
-      if (entry.name === "generated" || entry.name === "__tests__") continue;
-      const path = join(dir, entry.name);
-      if (entry.isDirectory()) walk(path, out);
-      else if (/\.tsx?$/.test(entry.name) && !/\.test\.tsx?$/.test(entry.name))
-        out.push(path);
-    }
-    return out;
-  }
-
-  it("finds the two item surfaces and no bare lookup anywhere", () => {
-    const files = walk(SRC);
-    expect(files.length).toBeGreaterThan(500);
-    const users = files.filter((f) =>
-      readFileSync(f, "utf8").includes("instrumentText("),
-    );
+  it("finds the item surfaces and no bare lookup anywhere", () => {
+    const files = readSourceFolder("src", {
+      floor: 500,
+      include: (rel) =>
+        !rel.startsWith("generated/") &&
+        !rel.includes("__tests__/") &&
+        !/\.test\.tsx?$/.test(rel),
+    });
+    const users = files.filter(([, text]) => text.includes("instrumentText("));
     // The wizard and the history breakdown, plus the module itself.
     expect(users.length).toBeGreaterThanOrEqual(3);
-    const offenders = files.filter((f) => {
-      const src = readFileSync(f, "utf8");
-      return BARE.some((re) => re.test(src));
-    });
+    const offenders = files
+      .filter(([, text]) => BARE.some((re) => re.test(text)))
+      .map(([rel]) => rel);
     expect(offenders).toEqual([]);
   });
 });