fix: permission bottom sheet and hosts TypeError on fresh profiles

Add missing tabs.sendMessage to browser-polyfill so the inline
permission bottom sheet works instead of falling back to a new tab.
Guard getPermission against undefined profile on fresh installs.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: vveerrgg

src/utilities/browser-polyfill.js

@@ -181,6 +181,12 @@ api.tabs = {
         }
         return promisify(_browser.tabs, _browser.tabs.getCurrent)(...args);
     },
+    sendMessage(...args) {
+        if (!isChrome) {
+            return _browser.tabs.sendMessage(...args);
+        }
+        return promisify(_browser.tabs, _browser.tabs.sendMessage)(...args);
+    },
 };
 
 export { api, isChrome };

src/utilities/utils.js

@@ -1,5 +1,6 @@
 import { api } from './browser-polyfill';
 import { encrypt, decrypt, hashPassword, verifyPassword } from './crypto';
+import { looksLikeSeedPhrase, isValidSeedPhrase } from './seedphrase';
 
 const DB_VERSION = 5;
 const storage = api.storage.local;
@@ -263,7 +264,7 @@ export async function getPermissions(index = null) {
 export async function getPermission(host, action) {
     let index = await getProfileIndex();
     let profile = await getProfile(index);
-    return profile.hosts?.[host]?.[action] || 'ask';
+    return profile?.hosts?.[host]?.[action] || 'ask';
 }
 
 export async function setPermission(host, action, perm, index = null) {
@@ -312,9 +313,12 @@ export function validateKey(key) {
     const hexMatch = /^[\da-f]{64}$/i.test(key);
     const b32Match = /^nsec1[qpzry9x8gf2tvdw0s3jn54khce6mua7l]{58}$/.test(key);
 
-    return hexMatch || b32Match || isNcryptsec(key);
+    return hexMatch || b32Match || isNcryptsec(key) || isValidSeedPhrase(key);
 }
 
+export { looksLikeSeedPhrase };
+export const isSeedPhrase = isValidSeedPhrase;
+
 export function isNcryptsec(key) {
     return /^ncryptsec1[qpzry9x8gf2tvdw0s3jn54khce6mua7l]+$/.test(key);
 }