fix(review): trim LOOPOVER_PUBLIC_STATS before the truthy-flag regex test (#10344)

isPublicStatsEnabled tested the raw, untrimmed env value against the anchored
/^(1|true|yes|on)$/i regex, while every sibling flag-checker in the codebase (e.g.
pr-reconciliation.ts's isPrReconciliationEnabled) trims first. A trailing newline or
surrounding whitespace -- plausible from wrangler secret put reading a file, or a
CI/CD-injected env var carrying a trailing newline -- made the anchored regex fail to
match even though the operator clearly meant to enable the flag: the test of 'true\n'
was false. Trim the value before the regex, matching the established convention. The
manifestOverride early-return and every already-clean value are unchanged.

Closes #10329

Author: shin-core

src/review/public-stats.ts

@@ -79,7 +79,10 @@ export function isPublicStatsEnabled(
   manifestOverride?: PublicStatsManifestOverride | undefined,
 ): boolean {
   if (manifestOverride?.present) return manifestOverride.enabled;
-  return /^(1|true|yes|on)$/i.test(env.LOOPOVER_PUBLIC_STATS ?? "");
+  // #10329: trim before the anchored regex, matching every sibling flag-checker (e.g. pr-reconciliation.ts).
+  // A trailing newline/space (plausible from `wrangler secret put` reading a file, or a CI-injected var) makes
+  // `/^(1|true|yes|on)$/i.test("true\n")` false even though the operator clearly meant to enable the flag.
+  return /^(1|true|yes|on)$/i.test((env.LOOPOVER_PUBLIC_STATS ?? "").trim());
 }
 
 // Short in-isolate TTL cache for resolvePublicStatsManifestOverride, mirroring review-memory-wire.ts's

test/unit/public-stats.test.ts

@@ -76,6 +76,15 @@ describe("isPublicStatsEnabled", () => {
       expect(isPublicStatsEnabled({ LOOPOVER_PUBLIC_STATS: v })).toBe(false);
   });
 
+  it("#10329: trims the flag before the anchored regex, matching pr-reconciliation.ts", () => {
+    // A trailing newline / surrounding whitespace (wrangler secret from a file, a CI-injected var) must not
+    // defeat the operator's clear intent to enable it. Also confirms a genuinely unrecognised value stays off.
+    for (const on of ["true\n", " 1 ", "\ton\t", "  yes"])
+      expect(isPublicStatsEnabled({ LOOPOVER_PUBLIC_STATS: on }), on).toBe(true);
+    for (const off of ["  false  ", "\n0\n", "  maybe  "])
+      expect(isPublicStatsEnabled({ LOOPOVER_PUBLIC_STATS: off }), off).toBe(false);
+  });
+
   it("a present manifest override wins outright over the env flag, in both directions (#6275)", () => {
     expect(isPublicStatsEnabled({ LOOPOVER_PUBLIC_STATS: "false" }, { present: true, enabled: true })).toBe(true);
     expect(isPublicStatsEnabled({ LOOPOVER_PUBLIC_STATS: "true" }, { present: true, enabled: false })).toBe(false);