Merge pull request #62 from TeigenZhang/feat/mobile-response-viewer

feat: mobile response viewer with markdown rendering

src/web/public/app.js

@@ -869,6 +869,124 @@ class CodemanApp {
     }
   }
 
+  // ═══════════════════════════════════════════════════════════════
+  // Response Viewer — native-scroll panel for reading full Claude responses
+  // ═══════════════════════════════════════════════════════════════
+
+  /** Render markdown to sanitized HTML, falling back to plain text if marked.js unavailable */
+  _renderMarkdown(text) {
+    if (typeof marked !== 'undefined' && marked.parse) {
+      try {
+        return marked.parse(text, { breaks: true, gfm: true });
+      } catch { /* fall through */ }
+    }
+    // Fallback: escape HTML and preserve whitespace
+    const escaped = text.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
+    return `<pre style="white-space:pre-wrap;word-break:break-word">${escaped}</pre>`;
+  }
+
+  async toggleResponseViewer() {
+    const viewer = document.getElementById('responseViewer');
+    const backdrop = document.getElementById('responseViewerBackdrop');
+    if (!viewer) return;
+
+    const isOpen = viewer.classList.contains('visible');
+    if (isOpen) {
+      viewer.classList.remove('visible');
+      backdrop.classList.remove('visible');
+      return;
+    }
+
+    if (!this.activeSessionId) return;
+    try {
+      // Source 1: Transcript JSONL (best quality — clean structured text from Claude)
+      const res = await fetch(`/api/sessions/${this.activeSessionId}/last-response`);
+      const data = await res.json();
+      let lastResponse = data.text || '';
+
+      // Source 2: Terminal buffer fallback (strip ANSI codes)
+      if (!lastResponse) {
+        const termRes = await fetch(`/api/sessions/${this.activeSessionId}/terminal`);
+        const termData = await termRes.json();
+        if (termData.terminalBuffer) {
+          lastResponse = termData.terminalBuffer
+            .replace(/\x1b\[\?[0-9;]*[a-zA-Z]/g, '')
+            .replace(/\x1b\[[0-9;]*[a-zA-Z]/g, '')
+            .replace(/\x1b\][^\x07\x1b]*(?:\x07|\x1b\\)/g, '')
+            .replace(/\x1b[()][A-Z0-9]/g, '')
+            .replace(/\x1b[>=<]/g, '')
+            .replace(/[\x00-\x08\x0b\x0c\x0e-\x1f\x7f]/g, '')
+            .replace(/\r\n/g, '\n').replace(/\r/g, '\n')
+            .replace(/[ \t]+$/gm, '')
+            .replace(/\n{4,}/g, '\n\n\n')
+            .trim();
+        }
+      }
+
+      const body = document.getElementById('responseViewerBody');
+      body.innerHTML = this._renderMarkdown(lastResponse);
+
+      // Reset state for fresh open
+      const title = document.getElementById('responseViewerTitle');
+      const moreBtn = document.getElementById('responseViewerMore');
+      if (title) title.textContent = 'Last Response';
+      if (moreBtn) { moreBtn.style.display = ''; moreBtn.textContent = 'More'; }
+
+      viewer.classList.add('visible');
+      backdrop.classList.add('visible');
+      body.scrollTop = 0;
+    } catch (err) {
+      console.error('Failed to load response:', err);
+    }
+  }
+
+  async loadFullContext() {
+    if (!this.activeSessionId) return;
+    const moreBtn = document.getElementById('responseViewerMore');
+    if (moreBtn) moreBtn.textContent = '...';
+    try {
+      const res = await fetch(`/api/sessions/${this.activeSessionId}/last-response?context=full`);
+      const data = await res.json();
+      const messages = data.messages || [];
+      const body = document.getElementById('responseViewerBody');
+      const title = document.getElementById('responseViewerTitle');
+      if (!body) return;
+
+      if (messages.length === 0) {
+        body.textContent = 'No conversation history available';
+        return;
+      }
+
+      // Render conversation thread
+      body.innerHTML = '';
+      for (const msg of messages) {
+        const div = document.createElement('div');
+        div.className = 'rv-message';
+
+        const role = document.createElement('div');
+        role.className = 'rv-role ' + (msg.role === 'user' ? 'rv-role-user' : 'rv-role-assistant');
+        role.textContent = msg.role === 'user' ? 'You' : 'Claude';
+        div.appendChild(role);
+
+        const text = document.createElement('div');
+        text.className = 'rv-text';
+        text.innerHTML = this._renderMarkdown(msg.text);
+        div.appendChild(text);
+
+        body.appendChild(div);
+      }
+
+      if (title) title.textContent = `Conversation (${messages.length} messages)`;
+      if (moreBtn) moreBtn.style.display = 'none';
+      // Scroll to bottom (latest message)
+      body.scrollTop = body.scrollHeight;
+    } catch (err) {
+      console.error('Failed to load context:', err);
+    } finally {
+      if (moreBtn) moreBtn.textContent = 'More';
+    }
+  }
+
   async _onSessionNeedsRefresh() {
     // Server sends this after SSE backpressure clears — terminal data was dropped,
     // so reload the buffer to recover from any display corruption.

src/web/public/index.html

@@ -26,6 +26,7 @@
   <!-- WebGL addon lazy-loaded by app.js on desktop only (skipped on mobile, saving 244KB) -->
   <script defer src="vendor/xterm-addon-unicode11.min.js"></script>
   <script defer src="vendor/xterm-zerolag-input.js"></script>
+  <script defer src="vendor/marked.min.js"></script>
   <!-- Synchronous mobile detection — runs before first paint to prevent panel flash -->
   <script>if(window.innerWidth<768||(('ontouchstart' in window||navigator.maxTouchPoints>0)&&window.innerWidth<1024))document.documentElement.classList.add('mobile-init');</script>
   <!-- Inline critical CSS for instant skeleton paint (before styles.css loads) -->
@@ -92,6 +93,7 @@
             <span class="stat-value" id="statMem">--</span>
           </div>
         </div>
+        <button class="btn-icon-header btn-response-viewer-header" onclick="app.toggleResponseViewer()" title="View last response" aria-label="View last response"><svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><path d="M1 12s4-8 11-8 11 8 11 8-4 8-11 8-11-8-11-8z"/><circle cx="12" cy="12" r="3"/></svg></button>
         <button class="btn-icon-header btn-notifications" onclick="app.toggleNotifications()" title="Notifications" aria-label="Toggle notifications">
           <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M18 8A6 6 0 0 0 6 8c0 7-3 9-3 9h18s-3-2-3-9"/><path d="M13.73 21a2 2 0 0 1-3.46 0"/></svg>
           <span class="notification-badge" id="notifBadge" style="display:none;">0</span>
@@ -331,6 +333,19 @@
       </div>
     </div>
 
+    <!-- Response Viewer (mobile: native-scroll overlay for reading full Claude responses) -->
+    <div class="response-viewer" id="responseViewer">
+      <div class="response-viewer-header">
+        <span id="responseViewerTitle">Last Response</span>
+        <div class="response-viewer-actions">
+          <button class="response-viewer-more" id="responseViewerMore" onclick="app.loadFullContext()">More</button>
+          <button class="response-viewer-close" onclick="app.toggleResponseViewer()">&times;</button>
+        </div>
+      </div>
+      <div class="response-viewer-body" id="responseViewerBody"></div>
+    </div>
+    <div class="response-viewer-backdrop" id="responseViewerBackdrop" onclick="app.toggleResponseViewer()"></div>
+
     <!-- Bottom Toolbar -->
     <footer class="toolbar">
       <div class="toolbar-left">

src/web/public/mobile.css

@@ -301,9 +301,15 @@ html.mobile-init .file-browser-panel {
    Phone Breakpoint (<430px)
    ============================================================================ */
 @media (max-width: 430px) {
-  /* Hide header brand on phones */
+  /* Compact header brand on phones — acts as home button */
   .header-brand {
-    display: none;
+    padding-right: 0.25rem;
+    margin-right: 0.2rem;
+    border-right: none;
+  }
+
+  .header-brand .logo {
+    font-size: 0.7rem;
   }
 
   /* Font controls - compact on phones, visibility controlled by JS */
@@ -1189,6 +1195,20 @@ html.mobile-init .file-browser-panel {
     touch-action: none;
   }
 
+  /* Response viewer — show eye icon in header on mobile */
+  .btn-response-viewer-header {
+    display: inline-flex !important;
+  }
+
+  .response-viewer {
+    padding-bottom: var(--safe-area-bottom, 0px);
+  }
+
+  .response-viewer-body {
+    font-size: 12px;
+    padding: 12px;
+  }
+
   /* Compact welcome overlay for mobile */
   .welcome-content {
     max-width: calc(100vw - 1.5rem);

src/web/public/styles.css

@@ -2224,6 +2224,24 @@ body {
   text-align: right;
 }
 
+.history-show-more {
+  width: 100%;
+  padding: 0.5rem;
+  margin-top: 0.25rem;
+  background: rgba(255, 255, 255, 0.04);
+  border: 1px dashed rgba(255, 255, 255, 0.1);
+  border-radius: 8px;
+  color: var(--text-muted);
+  font-size: 0.75rem;
+  cursor: pointer;
+  transition: background var(--transition-smooth), color var(--transition-smooth);
+}
+
+.history-show-more:hover {
+  background: rgba(255, 255, 255, 0.08);
+  color: var(--text);
+}
+
 .welcome-hint {
   color: var(--text-muted);
   font-size: 0.8rem;
@@ -5485,7 +5503,12 @@ kbd {
 /* Responsive */
 @media (max-width: 600px) {
   .header-brand {
-    display: none;
+    padding-right: 0.4rem;
+    margin-right: 0.3rem;
+  }
+
+  .header-brand .logo {
+    font-size: 0.75rem;
   }
 
   .connection-text {
@@ -7741,6 +7764,232 @@ kbd {
   padding-left: 0.5rem;
 }
 
+/* ═══════════════════════════════════════════════════════════════
+   Response Viewer — native-scroll overlay for reading Claude responses
+   ═══════════════════════════════════════════════════════════════ */
+
+/* Hidden on desktop — only shown on mobile via mobile.css override */
+.btn-response-viewer-header {
+  display: none !important;
+}
+
+.response-viewer {
+  display: none;
+  position: fixed;
+  bottom: 0;
+  left: 0;
+  right: 0;
+  max-height: 85vh;
+  background: #1a1a2e;
+  border-top: 1px solid #333;
+  border-radius: 12px 12px 0 0;
+  z-index: 5000;
+  flex-direction: column;
+  transform: translateY(100%);
+  transition: transform 0.25s ease-out;
+}
+
+.response-viewer.visible {
+  display: flex;
+  transform: translateY(0);
+}
+
+.response-viewer-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 12px 16px;
+  border-bottom: 1px solid #333;
+  flex-shrink: 0;
+  font-size: 14px;
+  font-weight: 600;
+  color: #e0e0e0;
+}
+
+.response-viewer-actions {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+}
+
+.response-viewer-more {
+  background: #2a2a4a;
+  border: 1px solid #444;
+  color: #aaa;
+  font-size: 12px;
+  padding: 3px 10px;
+  border-radius: 4px;
+  cursor: pointer;
+}
+
+.response-viewer-more:active {
+  background: #3a3a5a;
+}
+
+.response-viewer-close {
+  background: none;
+  border: none;
+  color: #888;
+  font-size: 22px;
+  cursor: pointer;
+  padding: 0 4px;
+  line-height: 1;
+}
+
+/* Conversation thread messages */
+.rv-message {
+  margin-bottom: 16px;
+  padding-bottom: 16px;
+  border-bottom: 1px solid #2a2a3a;
+}
+
+.rv-message:last-child {
+  border-bottom: none;
+  margin-bottom: 0;
+  padding-bottom: 0;
+}
+
+.rv-role {
+  font-size: 11px;
+  font-weight: 600;
+  text-transform: uppercase;
+  letter-spacing: 0.5px;
+  margin-bottom: 6px;
+}
+
+.rv-role-user {
+  color: #5c7cfa;
+}
+
+.rv-role-assistant {
+  color: #51cf66;
+}
+
+/* Markdown rendered content inside response viewer */
+.rv-text {
+  word-break: break-word;
+  line-height: 1.6;
+}
+
+.rv-text p {
+  margin: 0 0 0.6em;
+}
+
+.rv-text p:last-child {
+  margin-bottom: 0;
+}
+
+.rv-text h1, .rv-text h2, .rv-text h3, .rv-text h4 {
+  color: #e0e0e0;
+  margin: 1em 0 0.4em;
+  line-height: 1.3;
+}
+
+.rv-text h1 { font-size: 1.3em; }
+.rv-text h2 { font-size: 1.15em; }
+.rv-text h3 { font-size: 1.05em; }
+
+.rv-text code {
+  background: #2a2a3e;
+  padding: 1px 5px;
+  border-radius: 3px;
+  font-size: 0.9em;
+}
+
+.rv-text pre {
+  background: #1e1e2e;
+  border: 1px solid #333;
+  border-radius: 6px;
+  padding: 10px 12px;
+  overflow-x: auto;
+  margin: 0.6em 0;
+}
+
+.rv-text pre code {
+  background: none;
+  padding: 0;
+  font-size: 0.85em;
+  line-height: 1.5;
+}
+
+.rv-text ul, .rv-text ol {
+  margin: 0.4em 0;
+  padding-left: 1.4em;
+}
+
+.rv-text li {
+  margin-bottom: 0.2em;
+}
+
+.rv-text blockquote {
+  border-left: 3px solid #444;
+  margin: 0.6em 0;
+  padding: 0.3em 0 0.3em 12px;
+  color: #999;
+}
+
+.rv-text strong {
+  color: #f0f0f0;
+}
+
+.rv-text a {
+  color: #5c7cfa;
+  text-decoration: none;
+}
+
+.rv-text table {
+  border-collapse: collapse;
+  margin: 0.6em 0;
+  width: 100%;
+  font-size: 0.9em;
+}
+
+.rv-text th, .rv-text td {
+  border: 1px solid #333;
+  padding: 4px 8px;
+  text-align: left;
+}
+
+.rv-text th {
+  background: #2a2a3e;
+  color: #e0e0e0;
+}
+
+.rv-text hr {
+  border: none;
+  border-top: 1px solid #333;
+  margin: 1em 0;
+}
+
+.response-viewer-body {
+  flex: 1;
+  overflow-y: auto;
+  -webkit-overflow-scrolling: touch;
+  padding: 16px;
+  font-family: 'Fira Code', 'Cascadia Code', 'JetBrains Mono', 'SF Mono', Monaco, monospace;
+  font-size: 13px;
+  line-height: 1.5;
+  color: #d4d4d4;
+}
+
+.response-viewer-body:empty::after {
+  content: 'No response yet';
+  color: #555;
+  font-style: italic;
+}
+
+.response-viewer-backdrop {
+  display: none;
+  position: fixed;
+  inset: 0;
+  background: rgba(0, 0, 0, 0.5);
+  z-index: 4999;
+}
+
+.response-viewer-backdrop.visible {
+  display: block;
+}
+
 /* ═══════════════════════════════════════════════════════════════
    CJK IME Input
    ═══════════════════════════════════════════════════════════════ */

src/web/public/terminal-ui.js

@@ -734,84 +734,110 @@ Object.assign(CodemanApp.prototype, {
   },
 
   /**
-   * Fetch and deduplicate history sessions (up to 2 per dir, max `limit` total).
-   * @returns {Promise<Array>} deduplicated session list, sorted by lastModified desc
+   * Fetch and deduplicate history sessions (up to 3 per project, sorted by date).
+   * Uses projectKey for grouping because workingDir decoding is lossy.
+   * @returns {Promise<Array>} deduplicated session list, most recent first
    */
-  async _fetchHistorySessions(limit = 12) {
+  async _fetchHistorySessions() {
     const res = await fetch('/api/history/sessions');
     const data = await res.json();
     const sessions = data.sessions || [];
     if (sessions.length === 0) return [];
 
-    const byDir = new Map();
+    const byProject = new Map();
     for (const s of sessions) {
-      if (!byDir.has(s.workingDir)) byDir.set(s.workingDir, []);
-      byDir.get(s.workingDir).push(s);
+      const key = s.projectKey || s.workingDir;
+      if (!byProject.has(key)) byProject.set(key, []);
+      byProject.get(key).push(s);
     }
     const items = [];
-    for (const [, group] of byDir) {
-      items.push(...group.slice(0, 2));
+    for (const [, group] of byProject) {
+      items.push(...group.slice(0, 3));
     }
     items.sort((a, b) => new Date(b.lastModified) - new Date(a.lastModified));
-    return items.slice(0, limit);
+    return items;
   },
 
+  /** Build a single history item DOM element */
+  _buildHistoryItem(s) {
+    const size =
+      s.sizeBytes < 1024
+        ? `${s.sizeBytes}B`
+        : s.sizeBytes < 1048576
+          ? `${(s.sizeBytes / 1024).toFixed(0)}K`
+          : `${(s.sizeBytes / 1048576).toFixed(1)}M`;
+    const date = new Date(s.lastModified);
+    const timeStr =
+      date.toLocaleDateString('en', { month: 'short', day: 'numeric' }) +
+      ' ' +
+      date.toLocaleTimeString('en', { hour: '2-digit', minute: '2-digit', hour12: false });
+    const shortDir = s.workingDir.replace(/^\/home\/[^/]+\//, '~/');
+
+    const item = document.createElement('div');
+    item.className = 'history-item';
+    item.title = s.workingDir;
+    item.addEventListener('click', () => this.resumeHistorySession(s.sessionId, s.workingDir));
+
+    const textCol = document.createElement('div');
+    textCol.className = 'history-item-text';
+
+    const titleSpan = document.createElement('span');
+    titleSpan.className = 'history-item-title';
+    titleSpan.textContent = s.firstPrompt || shortDir;
+
+    const subtitleSpan = document.createElement('span');
+    subtitleSpan.className = 'history-item-subtitle';
+    subtitleSpan.textContent = shortDir;
+
+    textCol.append(titleSpan, subtitleSpan);
+
+    const metaSpan = document.createElement('span');
+    metaSpan.className = 'history-item-meta';
+    metaSpan.textContent = timeStr;
+
+    const sizeSpan = document.createElement('span');
+    sizeSpan.className = 'history-item-size';
+    sizeSpan.textContent = size;
+
+    item.append(textCol, metaSpan, sizeSpan);
+    return item;
+  },
+
+  /** Number of history items shown before "Show More" */
+  _HISTORY_INITIAL_COUNT: 4,
+
   async loadHistorySessions() {
     const container = document.getElementById('historySessions');
     const list = document.getElementById('historyList');
     if (!container || !list) return;
 
     try {
-      const display = await this._fetchHistorySessions(12);
-      if (display.length === 0) {
+      const allSessions = await this._fetchHistorySessions(30);
+      if (allSessions.length === 0) {
         container.style.display = 'none';
         return;
       }
 
-      // Build DOM safely (no innerHTML with user data)
       list.replaceChildren();
-      for (const s of display) {
-        const size =
-          s.sizeBytes < 1024
-            ? `${s.sizeBytes}B`
-            : s.sizeBytes < 1048576
-              ? `${(s.sizeBytes / 1024).toFixed(0)}K`
-              : `${(s.sizeBytes / 1048576).toFixed(1)}M`;
-        const date = new Date(s.lastModified);
-        const timeStr =
-          date.toLocaleDateString('en', { month: 'short', day: 'numeric' }) +
-          ' ' +
-          date.toLocaleTimeString('en', { hour: '2-digit', minute: '2-digit', hour12: false });
-        const shortDir = s.workingDir.replace(/^\/home\/[^/]+\//, '~/');
+      const initialCount = this._HISTORY_INITIAL_COUNT;
 
-        const item = document.createElement('div');
-        item.className = 'history-item';
-        item.title = s.workingDir;
-        item.addEventListener('click', () => this.resumeHistorySession(s.sessionId, s.workingDir));
+      // Render initial items
+      for (let i = 0; i < Math.min(initialCount, allSessions.length); i++) {
+        list.appendChild(this._buildHistoryItem(allSessions[i]));
+      }
 
-        const textCol = document.createElement('div');
-        textCol.className = 'history-item-text';
-
-        const titleSpan = document.createElement('span');
-        titleSpan.className = 'history-item-title';
-        titleSpan.textContent = s.firstPrompt || shortDir;
-
-        const subtitleSpan = document.createElement('span');
-        subtitleSpan.className = 'history-item-subtitle';
-        subtitleSpan.textContent = shortDir;
-
-        textCol.append(titleSpan, subtitleSpan);
-
-        const metaSpan = document.createElement('span');
-        metaSpan.className = 'history-item-meta';
-        metaSpan.textContent = timeStr;
-
-        const sizeSpan = document.createElement('span');
-        sizeSpan.className = 'history-item-size';
-        sizeSpan.textContent = size;
-
-        item.append(textCol, metaSpan, sizeSpan);
-        list.appendChild(item);
+      // Add "Show More" button if there are more items
+      if (allSessions.length > initialCount) {
+        const moreBtn = document.createElement('button');
+        moreBtn.className = 'history-show-more';
+        moreBtn.textContent = `Show ${allSessions.length - initialCount} more`;
+        moreBtn.addEventListener('click', () => {
+          for (let i = initialCount; i < allSessions.length; i++) {
+            list.insertBefore(this._buildHistoryItem(allSessions[i]), moreBtn);
+          }
+          moreBtn.remove();
+        });
+        list.appendChild(moreBtn);
       }
 
       container.style.display = '';

src/web/routes/session-routes.ts

@@ -182,6 +182,36 @@ export function registerSessionRoutes(
       }
     }
 
+    // Pre-validate resumeSessionId: check that the conversation file actually exists
+    // in Claude's projects directory. If not, skip resume to avoid confusing
+    // "No conversation found" errors from Claude CLI.
+    let validatedResumeId = body.resumeSessionId;
+    if (validatedResumeId) {
+      const projectsDir = join(process.env.HOME || '/tmp', '.claude', 'projects');
+      let found = false;
+      try {
+        const projectDirs = await fs.readdir(projectsDir);
+        for (const projDir of projectDirs) {
+          const sessionFile = join(projectsDir, projDir, `${validatedResumeId}.jsonl`);
+          try {
+            const stat = await fs.stat(sessionFile);
+            if (stat.size > 4000) {
+              found = true;
+              break;
+            }
+          } catch {
+            // File doesn't exist in this project dir
+          }
+        }
+      } catch {
+        // Projects dir doesn't exist
+      }
+      if (!found) {
+        console.log(`[Session] Resume session ${validatedResumeId} not found on disk, starting fresh`);
+        validatedResumeId = undefined;
+      }
+    }
+
     const globalNice = await ctx.getGlobalNiceConfig();
     const modelConfig = await ctx.getModelConfig();
     const mode = body.mode || 'claude';
@@ -203,7 +233,7 @@ export function registerSessionRoutes(
       claudeMode: claudeModeConfig.claudeMode,
       allowedTools: claudeModeConfig.allowedTools,
       openCodeConfig: mode === 'opencode' ? body.openCodeConfig : undefined,
-      resumeSessionId: body.resumeSessionId,
+      resumeSessionId: validatedResumeId,
     });
 
     ctx.addSession(session);
@@ -505,6 +535,117 @@ export function registerSessionRoutes(
     return { success: true };
   });
 
+  // ========== Get Last Response (from transcript JSONL) ==========
+
+  app.get('/api/sessions/:id/last-response', async (req) => {
+    const { id } = req.params as { id: string };
+    const session = findSessionOrFail(ctx, id);
+
+    // The Claude conversation ID (used as JSONL filename)
+    const claudeSessionId = session.claudeSessionId || session.id;
+
+    // Scan ~/.claude/projects/*/ for the transcript file
+    const projectsDir = join(process.env.HOME || '/tmp', '.claude', 'projects');
+    let transcriptText = '';
+    let transcriptTimestamp = '';
+
+    try {
+      const projectDirs = await fs.readdir(projectsDir);
+      for (const projDir of projectDirs) {
+        const jsonlPath = join(projectsDir, projDir, `${claudeSessionId}.jsonl`);
+        try {
+          const content = await fs.readFile(jsonlPath, 'utf8');
+          const lines = content.trim().split('\n');
+
+          // Search from end for last assistant message with text
+          for (let i = lines.length - 1; i >= 0; i--) {
+            try {
+              const entry = JSON.parse(lines[i]);
+              if (entry.type === 'assistant' && entry.message?.content) {
+                const blocks = Array.isArray(entry.message.content)
+                  ? entry.message.content
+                  : [{ type: 'text', text: String(entry.message.content) }];
+                const textBlocks = blocks
+                  .filter((b: { type: string; text?: string }) => b.type === 'text' && b.text)
+                  .map((b: { type: string; text?: string }) => b.text);
+                if (textBlocks.length > 0) {
+                  transcriptText = textBlocks.join('\n\n');
+                  transcriptTimestamp = entry.timestamp || '';
+                  break;
+                }
+              }
+            } catch {
+              // Skip unparseable lines
+            }
+          }
+          if (transcriptText) break; // Found it, stop scanning directories
+        } catch {
+          // File doesn't exist in this project dir, continue
+        }
+      }
+    } catch {
+      // projects dir doesn't exist
+    }
+
+    // If ?context=full, return all user+assistant messages for conversation view
+    const query = req.query as { context?: string };
+    if (query.context === 'full' && transcriptText) {
+      const allMessages: Array<{ role: string; text: string; timestamp?: string }> = [];
+      try {
+        const projectDirs = await fs.readdir(projectsDir);
+        for (const projDir of projectDirs) {
+          const jsonlPath = join(projectsDir, projDir, `${claudeSessionId}.jsonl`);
+          try {
+            const content = await fs.readFile(jsonlPath, 'utf8');
+            const lines = content.trim().split('\n');
+            for (const line of lines) {
+              try {
+                const entry = JSON.parse(line);
+                if (entry.type === 'user' && entry.message?.content) {
+                  const text =
+                    typeof entry.message.content === 'string'
+                      ? entry.message.content
+                      : (entry.message.content as Array<{ type: string; text?: string }>)
+                          .filter((b) => b.type === 'text' && b.text)
+                          .map((b) => b.text)
+                          .join('\n');
+                  // Skip system/command messages
+                  if (text && !text.startsWith('<local-command') && !text.startsWith('<command-name>')) {
+                    allMessages.push({ role: 'user', text, timestamp: entry.timestamp });
+                  }
+                } else if (entry.type === 'assistant' && entry.message?.content) {
+                  const blocks = Array.isArray(entry.message.content)
+                    ? entry.message.content
+                    : [{ type: 'text', text: String(entry.message.content) }];
+                  const text = blocks
+                    .filter((b: { type: string; text?: string }) => b.type === 'text' && b.text)
+                    .map((b: { type: string; text?: string }) => b.text)
+                    .join('\n\n');
+                  if (text) {
+                    allMessages.push({ role: 'assistant', text, timestamp: entry.timestamp });
+                  }
+                }
+              } catch {
+                /* skip */
+              }
+            }
+            if (allMessages.length > 0) break;
+          } catch {
+            /* continue */
+          }
+        }
+      } catch {
+        /* ignore */
+      }
+      return { text: transcriptText, timestamp: transcriptTimestamp, messages: allMessages };
+    }
+
+    return {
+      text: transcriptText,
+      timestamp: transcriptTimestamp,
+    };
+  });
+
   // ========== Get Terminal Buffer ==========
 
   // Query params:
@@ -924,6 +1065,74 @@ export function registerSessionRoutes(
     return undefined;
   }
 
+  /**
+   * Decode a Claude project key (e.g. "-Users-teigen-Documents-Workspace-AI-project-Mirror")
+   * back to a filesystem path ("/Users/teigen/Documents/Workspace/AI_project/Mirror").
+   *
+   * Claude CLI encodes both '/' and '_' as '-', so each '-' in the key could be
+   * any of: '/' (path separator), '_' (underscore), or '-' (literal dash).
+   *
+   * Strategy: look-ahead matching. At each '-', try consuming multiple segments
+   * joined by '_' or '-' to find an existing child directory, then recurse.
+   * E.g. for segments [AI, project, Mirror] inside /Workspace:
+   *   try /Workspace/AI (no) -> /Workspace/AI_project (yes!) -> continue with [Mirror]
+   */
+  async function decodeProjectKey(projKey: string): Promise<string> {
+    const encoded = projKey.startsWith('-') ? projKey.slice(1) : projKey;
+    const segments = encoded.split('-');
+
+    const isDir = async (p: string): Promise<boolean> =>
+      fs
+        .stat(p)
+        .then((s) => s.isDirectory())
+        .catch(() => false);
+
+    let current = '';
+    let i = 0;
+
+    while (i < segments.length) {
+      // Try progressively longer child names by joining segments with '_' or '-'
+      let matched = false;
+      // Limit look-ahead to avoid excessive fs checks (max 4 segments per component)
+      const maxLook = Math.min(i + 4, segments.length);
+      for (let end = i; end < maxLook; end++) {
+        // Build candidate child name from segments[i..end]
+        // Try all separator combinations: for 2+ segments, try '_' first then '-'
+        const candidates: string[] = [];
+        if (end === i) {
+          candidates.push(segments[i]);
+        } else {
+          // Build with underscores between joined segments
+          candidates.push(segments.slice(i, end + 1).join('_'));
+          // Build with dashes (literal)
+          candidates.push(segments.slice(i, end + 1).join('-'));
+        }
+
+        for (const child of candidates) {
+          const candidate = current + '/' + child;
+          if (await isDir(candidate)) {
+            current = candidate;
+            i = end + 1;
+            matched = true;
+            break;
+          }
+        }
+        if (matched) break;
+      }
+      if (!matched) {
+        // No directory match found — append as-is and move on
+        current = current + '/' + segments[i];
+        i++;
+      }
+    }
+
+    const finalExists = await fs
+      .access(current)
+      .then(() => true)
+      .catch(() => false);
+    return finalExists ? current : process.env.HOME || '/tmp';
+  }
+
   /** Read the first 16KB of a file for content sniffing. */
   async function readFileHead(path: string, buf: Buffer): Promise<string | null> {
     try {
@@ -974,15 +1183,11 @@ export function registerSessionRoutes(
         const stat = await fs.stat(projPath).catch(() => null);
         if (!stat?.isDirectory()) continue;
 
-        // Decode project key to working dir. The encoding replaces '/' with '-',
-        // which is lossy when path components contain '-'. Do naive decode first,
-        // then verify it exists. Fall back to HOME if the decoded path is invalid.
-        const naiveDecode = projDir.replace(/^-/, '/').replace(/-/g, '/');
-        const dirExists = await fs
-          .access(naiveDecode)
-          .then(() => true)
-          .catch(() => false);
-        const workingDir = dirExists ? naiveDecode : process.env.HOME || '/tmp';
+        // Decode project key to working dir. Claude CLI encodes '/' as '-',
+        // but path components may also contain '-' (e.g. "AI_project" vs "AI-project").
+        // Use recursive backtracking: try each '-' as either '/' or literal '-',
+        // verify which decoded path actually exists on disk.
+        const workingDir = await decodeProjectKey(projDir);
 
         const entries = await fs.readdir(projPath);
         for (const entry of entries) {
@@ -1004,24 +1209,31 @@ export function registerSessionRoutes(
           // Read first 16KB to check content and extract first user prompt.
           let firstPrompt: string | undefined;
           const head = await readFileHead(filePath, headBuf);
+          const hasConversation = (text: string) =>
+            text.includes('"type":"user"') || text.includes('"type":"assistant"') || text.includes('"type":"summary"');
 
-          if (fileStat.size < 50000) {
-            if (
-              !head ||
-              (!head.includes('"type":"user"') &&
-                !head.includes('"type":"assistant"') &&
-                !head.includes('"type":"summary"'))
-            ) {
-              continue; // No conversation content — skip
-            }
+          let foundContent = head ? hasConversation(head) : false;
+
+          // For large files, head may not contain user messages (e.g. /init followed
+          // by large system entries). Check the tail as well.
+          let tail: string | null = null;
+          if (!foundContent && fileStat.size > 16384) {
+            const tailBuf = Buffer.alloc(32768);
+            tail = await readFileTail(filePath, tailBuf, fileStat.size);
+            if (tail) foundContent = hasConversation(tail);
           }
+
+          if (!foundContent) continue; // No conversation content — skip
+
           if (head) firstPrompt = extractFirstUserPrompt(head);
 
           // If head scan found no usable prompt (e.g. session started with /init),
           // try reading the tail for a recent user message.
           if (!firstPrompt && fileStat.size > 65536) {
-            const tailBuf = Buffer.alloc(32768);
-            const tail = await readFileTail(filePath, tailBuf, fileStat.size);
+            if (!tail) {
+              const tailBuf = Buffer.alloc(32768);
+              tail = await readFileTail(filePath, tailBuf, fileStat.size);
+            }
             if (tail) firstPrompt = extractFirstUserPrompt(tail);
           }