Release v0.3.1

- Feed bounded context with DDD implementation (Phases 1-5)
- Domain event handlers for cross-context coordination
- Fix Blossom media upload setting persistence
- Fix wallet connection persistence on page reload
- New branding assets and icons
- Vitest testing infrastructure with 151 domain model tests
- Help page scaffolding
- Keyboard navigation provider

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/components/Sidebar/index.tsx

@@ -9,6 +9,7 @@ import { useUserPreferences } from '@/providers/UserPreferencesProvider'
 import { ChevronsLeft, ChevronsRight } from 'lucide-react'
 import AccountButton from './AccountButton'
 import BookmarkButton from './BookmarkButton'
+import HelpButton from './HelpButton'
 import HomeButton from './HomeButton'
 import InboxButton from './InboxButton'
 import LayoutSwitcher from './LayoutSwitcher'
@@ -55,16 +56,17 @@ export default function PrimaryPageSidebar() {
             <Logo />
           </button>
         )}
-        <HomeButton collapse={isCollapsed} />
-        <NotificationsButton collapse={isCollapsed} />
-        <SearchButton collapse={isCollapsed} />
-        {pubkey && <InboxButton collapse={isCollapsed} />}
-        <ProfileButton collapse={isCollapsed} />
-        {pubkey && <BookmarkButton collapse={isCollapsed} />}
-        <SettingsButton collapse={isCollapsed} />
-        <PostButton collapse={isCollapsed} />
+        <HomeButton collapse={isCollapsed} navIndex={0} />
+        <NotificationsButton collapse={isCollapsed} navIndex={1} />
+        <SearchButton collapse={isCollapsed} navIndex={2} />
+        {pubkey && <InboxButton collapse={isCollapsed} navIndex={3} />}
+        <ProfileButton collapse={isCollapsed} navIndex={pubkey ? 4 : 3} />
+        {pubkey && <BookmarkButton collapse={isCollapsed} navIndex={5} />}
+        <SettingsButton collapse={isCollapsed} navIndex={pubkey ? 6 : 4} />
+        <PostButton collapse={isCollapsed} navIndex={pubkey ? 7 : 5} />
       </div>
       <div className="space-y-4">
+        <HelpButton collapse={isCollapsed} navIndex={pubkey ? 8 : 6} />
         <LayoutSwitcher collapse={isCollapsed} />
         <AccountButton collapse={isCollapsed} />
       </div>