test(05-05): Worker no-route-proxy gates RP1+RP2 (D-05)

- RP1: zero /api/route + registerRoute/routeProxy tokens in comment-stripped
  bot/src — the Worker gains no route endpoint, even accidentally (T-05-16)
- RP2: zero @araharah/routing specifiers in bot/src — routing lives in the
  webview bundle only; the Worker imports only @araharah/search
- scans grow with the bot/src tree automatically (the PG-gate pattern)
- TDD note: gates target an already-clean tree, so the RED run is a teeth
  proof — a planted violating file fails both gates; removed, both pass
  (74/0 bot suite green)

bot/test/route-privacy.test.mjs

@@ -0,0 +1,79 @@
+#!/usr/bin/env node
+/*
+ * route-privacy.test.mjs — the D-05 Worker boundary, gated (05-05, T-05-16).
+ * ------------------------------------------------------------------------------
+ * D-05: "The Worker gains no /api/route this phase. Fixtures ride in the web
+ * bundle." The routing stack lives ENTIRELY in the webview — @araharah/routing
+ * is imported by web/src only; the Worker imports only @araharah/search.
+ * The pivot's privacy posture ("your coordinates were never sent anywhere")
+ * is true partly BECAUSE no route endpoint exists to send them to — so the
+ * abstinence is pinned by reading the source itself (the privacy.test.mjs /
+ * PG-gate pattern: comment-stripped, prefer-fail token scans):
+ *
+ *   RP1 no route proxy — zero `/api/route` tokens AND zero
+ *       `registerRoute` / `routeProxy` tokens anywhere in bot/src
+ *       (comment-stripped): the Worker gains no route endpoint, not even
+ *       an accidentally-named one
+ *   RP2 no routing import — zero `@araharah/routing` specifiers in bot/src:
+ *       routing workspace code cannot leak into the Worker bundle even as
+ *       a dead import (the bundle would grow and the boundary would blur)
+ *
+ * The scans cover EVERY TypeScript file under bot/src and grow with the
+ * tree automatically — a future route proxy fails here at test time, not
+ * in review.
+ */
+import { strict as assert } from "node:assert";
+import { readdirSync, readFileSync, statSync } from "node:fs";
+import { fileURLToPath } from "node:url";
+import path from "node:path";
+import { test } from "./harness.mjs";
+
+const SRC = path.join(fileURLToPath(new URL(import.meta.url)), "..", "..", "src");
+
+function listFiles(dir, exts, acc = []) {
+  for (const entry of readdirSync(dir)) {
+    const full = path.join(dir, entry);
+    if (statSync(full).isDirectory()) listFiles(full, exts, acc);
+    else if (exts.some((e) => entry.endsWith(e))) acc.push(full);
+  }
+  return acc;
+}
+
+function stripComments(src) {
+  return src
+    .replace(/\/\*[\s\S]*?\*\//g, " ") // block comments
+    .replace(/(^|[^:\\])\/\/[^\n]*/g, "$1"); // line comments (not URLs inside strings — benign over-stripping, gate is prefer-fail reading)
+}
+
+function codeText(file) {
+  return stripComments(readFileSync(file, "utf8"));
+}
+
+/* ————— RP1 — the Worker gains no route endpoint (D-05, T-05-16) ————— */
+
+test("RP1 no route proxy — zero /api/route + registerRoute/routeProxy tokens in bot/src (comment-stripped, D-05)", () => {
+  const files = listFiles(SRC, [".ts"]);
+  assert.ok(files.length >= 8, `scanned a real tree (found ${files.length} files)`);
+  for (const file of files) {
+    const code = codeText(file);
+    for (const banned of ["/api/route", "registerRoute", "routeProxy"]) {
+      assert.ok(
+        !code.includes(banned),
+        `${path.relative(process.cwd(), file)} references "${banned}" — D-05 forbids a Worker route proxy (T-05-16); fixtures ride the web bundle`,
+      );
+    }
+  }
+});
+
+/* ————— RP2 — routing workspace code never enters the Worker ————— */
+
+test("RP2 no routing import — zero @araharah/routing specifiers in bot/src (D-05)", () => {
+  const files = listFiles(SRC, [".ts"]);
+  for (const file of files) {
+    const code = codeText(file);
+    assert.ok(
+      !code.includes("@araharah/routing"),
+      `${path.relative(process.cwd(), file)} imports @araharah/routing — routing lives in the webview bundle only; the Worker imports only @araharah/search (D-05)`,
+    );
+  }
+});