feat(archive): implement comment.archived and add archive page (#1074)

* feat(archive): implement comment.archived and add archive page

Add isCommentArchived() utility, /board/:boardIdentifier/archive route,
archive view with filtered feed, and UI integration (board buttons, edit
menu, catalog row, post). Archived indicator on catalog and posts.

* fix(archive): address review feedback from Bugbot and CodeRabbit

Add missing i18n keys (archived, thread_archived, view, loading_archive),
add /archive/settings route, replace hardcoded English in archive.tsx, and
fix mobile test state.

src/lib/utils/__tests__/route-utils.test.ts

@@ -7,6 +7,7 @@ import {
   getFeedType,
   getPageFromFeedPath,
   getSubplebbitAddress,
+  isArchiveRoute,
   isBoardModRoute,
   isDirectoryBoard,
   isFeedRoute,
@@ -98,6 +99,13 @@ describe('isFeedRoute', () => {
     expect(isFeedRoute('/biz/mod/queue')).toBe(false);
   });
 
+  it('returns false for board archive paths', () => {
+    expect(isFeedRoute('/biz/archive')).toBe(false);
+    expect(isFeedRoute('/biz/archive/settings')).toBe(false);
+    expect(isArchiveRoute('/biz/archive')).toBe(true);
+    expect(isArchiveRoute('/biz/archive/settings')).toBe(true);
+  });
+
   it('returns false for posts and pending items', () => {
     expect(isFeedRoute('/biz/thread/abc')).toBe(false);
     expect(isFeedRoute('/pending/4')).toBe(false);
@@ -175,6 +183,7 @@ describe('feed cache helpers', () => {
     expect(getFeedCacheKey('/biz/3/settings')).toBe('/biz');
     expect(getFeedCacheKey('/biz/catalog/4')).toBe('/biz/catalog');
     expect(getFeedCacheKey('/biz/thread/abc')).toBe('/biz');
+    expect(getFeedCacheKey('/biz/archive')).toBeNull();
   });
 
   it('returns null cache keys for non-feed routes', () => {
@@ -187,5 +196,6 @@ describe('feed cache helpers', () => {
     expect(getFeedType('/biz/thread/abc')).toBe('board');
     expect(getFeedType('/biz/catalog/settings')).toBe('catalog');
     expect(getFeedType('/pending/3')).toBeNull();
+    expect(getFeedType('/biz/archive')).toBeNull();
   });
 });

src/lib/utils/__tests__/view-utils.test.ts

@@ -1,6 +1,7 @@
 import { describe, expect, it } from 'vitest';
 import {
   isAllView,
+  isArchiveView,
   isBoardView,
   isCatalogView,
   isHomeView,
@@ -48,5 +49,8 @@ describe('view-utils', () => {
     expect(isPostPageView('/emoji-%F0%9F%8E%B5.eth/thread/cid-123', params)).toBe(true);
     expect(isNotFoundView('/definitely-not-a-route', params)).toBe(true);
     expect(isNotFoundView('/emoji-%F0%9F%8E%B5.eth/thread/cid-123', params)).toBe(false);
+    expect(isArchiveView('/music.eth/archive', { boardIdentifier: 'music.eth' })).toBe(true);
+    expect(isBoardView('/music.eth/archive', { boardIdentifier: 'music.eth' })).toBe(false);
+    expect(isNotFoundView('/music.eth/archive', { boardIdentifier: 'music.eth' })).toBe(false);
   });
 });