feat: add qualified research exports and accessible voice handoff

web/index.html

@@ -29,7 +29,7 @@
     </section>
     <main class="app-shell" id="authenticatedApp" hidden>
 <aside id="chatSidebar" class="chat-sidebar" aria-label="Conversations"><div class="sidebar-brand"><span class="hope-mark" aria-hidden="true">✳</span><strong>Hope</strong><button id="drawerClose" class="btn btn-ghost" aria-label="Close navigation">×</button></div><button id="newConversation" class="btn new-chat">＋ New chat</button><label class="sr-only" for="conversationSearch">Search conversations</label><input id="conversationSearch" type="search" placeholder="Search conversations"><nav aria-label="Chat history"><h2>Pinned</h2><div id="pinnedConversations"></div><div class="nav-heading"><h2>Workspaces</h2><button id="newWorkspace" class="btn btn-ghost" aria-label="Create workspace">＋</button></div><div id="workspaceList"></div><div class="nav-heading"><h2 id="recentHeading">Recent</h2><button id="showArchived" class="btn btn-ghost" aria-pressed="false">Archived</button></div><div id="recentConversations"></div><button id="loadMoreConversations" class="btn btn-ghost" hidden>Load more</button></nav><div class="sidebar-footer"><button id="openVoice" class="btn btn-ghost">Voice &amp; account</button><button id="openPreferences" class="btn btn-ghost">Appearance</button></div></aside><button id="drawerBackdrop" class="drawer-backdrop" aria-label="Close navigation" hidden></button>
-<section id="primaryChat" class="primary-chat" aria-labelledby="chatTitle"><header class="chat-topbar"><button id="drawerOpen" class="btn btn-ghost" aria-label="Open navigation" aria-expanded="false" aria-controls="chatSidebar">☰</button><h1 id="chatTitle">New chat</h1><div id="featureActions" class="feature-actions"></div><button id="conversationMenu" class="btn btn-ghost" popovertarget="conversationActions" aria-label="Conversation actions" hidden>•••</button><div id="conversationActions" class="conversation-actions"><button id="pinConversation" class="btn btn-ghost" disabled>Pin</button><button id="renameConversation" class="btn btn-ghost" disabled>Rename</button><button id="moveConversation" class="btn btn-ghost" disabled>Move</button><button id="archiveConversation" class="btn btn-ghost" disabled>Archive</button><button id="deleteConversation" class="btn btn-ghost" disabled>Delete</button></div></header><div id="chatNotice" class="chat-notice" role="status" aria-live="polite"></div><div id="chatTimeline" class="chat-timeline" tabindex="-1" aria-label="Messages"><div class="chat-welcome"><span class="hope-mark" aria-hidden="true">✳</span><h2>A little space to think.</h2><p>Ask a question, work through an idea, or start something new.</p></div></div><div id="runProgress" class="run-progress" role="status" aria-live="polite"></div><form id="primaryComposer" class="primary-composer" aria-label="Message Hope"><label class="sr-only" for="primaryInput">Message Hope</label><textarea id="primaryInput" rows="2" placeholder="What's on your mind?" required disabled></textarea><div id="attachmentPreviews"></div><div class="composer-footer"><span>Enter to send · Shift + Enter for a new line</span><button id="cancelRun" class="btn" type="button" hidden>Stop response</button><button id="primarySend" class="btn btn-primary" disabled>Send ↑</button></div></form><p class="chat-footnote">Your chats are private to your account. Hope can make mistakes.</p></section><section id="legacyVoice" class="legacy-voice" hidden aria-label="Voice and account settings"><button id="backToChat" class="btn btn-secondary">← Back to chat</button><p>Live voice controls and account settings.</p>        <header class="topbar">
+<section id="primaryChat" class="primary-chat" aria-labelledby="chatTitle"><header class="chat-topbar"><button id="drawerOpen" class="btn btn-ghost" aria-label="Open navigation" aria-expanded="false" aria-controls="chatSidebar">☰</button><h1 id="chatTitle">New chat</h1><div id="featureActions" class="feature-actions"></div><button id="conversationMenu" class="btn btn-ghost" popovertarget="conversationActions" aria-label="Conversation actions" hidden>•••</button><div id="conversationActions" class="conversation-actions"><button id="pinConversation" class="btn btn-ghost" disabled>Pin</button><button id="renameConversation" class="btn btn-ghost" disabled>Rename</button><button id="exportMarkdown" class="btn btn-ghost">Download Markdown</button><button id="exportJSON" class="btn btn-ghost">Download JSON</button><button id="moveConversation" class="btn btn-ghost" disabled>Move</button><button id="archiveConversation" class="btn btn-ghost" disabled>Archive</button><button id="deleteConversation" class="btn btn-ghost" disabled>Delete</button></div></header><div id="chatNotice" class="chat-notice" role="status" aria-live="polite"></div><div id="chatTimeline" class="chat-timeline" tabindex="-1" aria-label="Messages"><div class="chat-welcome"><span class="hope-mark" aria-hidden="true">✳</span><h2>A little space to think.</h2><p>Ask a question, work through an idea, or start something new.</p></div></div><div id="runProgress" class="run-progress" role="status" aria-live="polite"></div><form id="primaryComposer" class="primary-composer" aria-label="Message Hope"><label class="sr-only" for="primaryInput">Message Hope</label><textarea id="primaryInput" rows="2" placeholder="What's on your mind?" required disabled></textarea><div id="attachmentPreviews"></div><div class="composer-footer"><label id="researchModeLabel" for="researchMode" hidden>Mode</label><select id="researchMode" hidden><option value="normal">Chat</option><option value="research">Research</option></select><span>Enter to send · Shift + Enter for a new line</span><button id="cancelRun" class="btn" type="button" hidden>Stop response</button><button id="primarySend" class="btn btn-primary" disabled>Send ↑</button></div></form><p class="chat-footnote">Your chats are private to your account. Hope can make mistakes.</p></section><section id="legacyVoice" class="legacy-voice" hidden aria-label="Voice and account settings"><button id="backToChat" class="btn btn-secondary">← Back to chat</button><p>Live voice controls and account settings.</p>        <header class="topbar">
             <div class="brand">
                 <span class="brand-glyph" aria-hidden="true"><i></i></span>
                 <div>