fix: the StateRecovery erase warning names every kind of wallet backup (closes #593)

The erase warning told every user to rely on each wallet's recovery
phrase. A wallet imported from a private key or an extended private key
has no recovery phrase. The warning now names all three, in the words the
delete wallet screens use. The screen cannot read the wallets, so one
sentence covers every kind. README's StateRecovery entry says the same.

Model: opus-5-5

tests/stateRecovery.test.js

@@ -23,6 +23,9 @@
 // version field, and showing those users a wipe prompt would be a worse defect
 // than the one being fixed. It is migrated in place and keeps working.
 
+const fs = require("fs");
+const path = require("path");
+
 const {
     bootPopup,
     cleanupPopup,
@@ -148,6 +151,29 @@ describe("the destructive reset on the recovery screen", () => {
     });
 });
 
+// A key or xprv wallet has no recovery phrase, so the erase warning names all
+// three backups (https://git.eeqj.de/sneak/AutistMask/issues/593). The boot
+// harness holds no static text, so this reads the markup itself.
+describe("the erase warning on the recovery screen", () => {
+    test("names the recovery phrase, the private key and the extended private key", () => {
+        const html = fs.readFileSync(
+            path.join(__dirname, "..", "src", "popup", "index.html"),
+            "utf8",
+        );
+        const start = html.indexOf('id="view-state-recovery"');
+        const end = html.indexOf('id="btn-state-recovery-reset"', start);
+        const screenText = html
+            .slice(start, end)
+            .replace(/<[^>]*>/g, " ")
+            .replace(/\s+/g, " ");
+
+        expect(screenText).toContain(
+            "If you kept a copy of a wallet's recovery phrase, private key or " +
+                "extended private key, you can add that wallet again.",
+        );
+    });
+});
+
 describe("a popup already open when the stored profile becomes unreadable", () => {
     // https://git.eeqj.de/sneak/AutistMask/issues/373. The popup used to stay
     // on the wallet list with the last good balances, and only a reopen