feat: response-viewer (eye) support for Codex sessions

src/session.ts

@@ -2252,11 +2252,29 @@ export class Session extends EventEmitter {
    * ```
    */
   write(data: string): void {
+    this._trackCodexSubmit(data);
     if (this.ptyProcess) {
       this.ptyProcess.write(data);
     }
   }
 
+  // ── Codex thread tracking ─────────────────────────────────────────────
+  // When a codex pane last submitted a message (Enter). The response-viewer
+  // correlates this against ~/.codex/history.jsonl entry timestamps to find
+  // the thread the pane is ACTUALLY on — the only signal that survives
+  // /resume, /new and /fork typed inside the codex TUI itself.
+  private _codexLastSubmitAt = 0;
+
+  get codexLastSubmitAt(): number {
+    return this._codexLastSubmitAt;
+  }
+
+  private _trackCodexSubmit(data: string): void {
+    if (this.mode === 'codex' && (data.includes('\r') || data.includes('\n'))) {
+      this._codexLastSubmitAt = Date.now();
+    }
+  }
+
   /**
    * Per-client highest-applied input sequence, for exactly-once input delivery.
    * Keyed by the web client's stable `clientId`. Bounded so many devices over a
@@ -2310,6 +2328,7 @@ export class Session extends EventEmitter {
    * ```
    */
   async writeViaMux(data: string): Promise<boolean> {
+    this._trackCodexSubmit(data);
     if (this._mux && this._muxSession) {
       return this._mux.sendInput(this.id, data);
     }

src/tmux-manager.ts

@@ -932,6 +932,12 @@ export class TmuxManager extends EventEmitter implements TerminalMultiplexer {
       'export LC_ALL=en_US.UTF-8',
       mode === 'codex' || mode === 'gemini' ? 'export COLORTERM=truecolor' : 'unset COLORTERM',
       ...(mode === 'codex' || mode === 'gemini' ? ['unset NO_COLOR'] : []),
+      // Stamp each Codex pane with a unique originator so the response-viewer
+      // can locate THIS pane's rollout exactly — codex writes the value into
+      // session_meta.originator of every rollout it creates. Without it,
+      // rollouts are matched by cwd+mtime and two panes in the same directory
+      // bleed into each other.
+      ...(mode === 'codex' ? [`export CODEX_INTERNAL_ORIGINATOR_OVERRIDE=codeman_${sessionId}`] : []),
       'export CODEMAN_MUX=1',
       `export CODEMAN_SESSION_ID=${sessionId}`,
       `export CODEMAN_MUX_NAME=${muxName}`,

src/web/public/app.js

@@ -1612,8 +1612,13 @@ class CodemanApp {
       const data = (await res.json())?.data ?? {};
       let lastResponse = data.text || '';
 
-      // Source 2: Terminal buffer fallback — strip ANSI, drop Claude CLI chrome
-      if (!lastResponse) {
+      // Source 2: Terminal buffer fallback — strip ANSI, drop Claude CLI chrome.
+      // Claude + shell only: _cleanTerminalBuffer knows Claude CLI's output, and
+      // shell sessions have no transcript source at all; for TUI modes
+      // (codex/opencode/gemini) it yields repaint garbage, so a clear
+      // placeholder beats a messy screen dump there.
+      const sessionMode = this.sessions.get(this.activeSessionId)?.mode || 'claude';
+      if (!lastResponse && (sessionMode === 'claude' || sessionMode === 'shell')) {
         const termRes = await fetch(`/api/sessions/${this.activeSessionId}/terminal`);
         const termData = (await termRes.json())?.data ?? {};
         if (termData.terminalBuffer) {
@@ -1622,8 +1627,12 @@ class CodemanApp {
       }
 
       const body = document.getElementById('responseViewerBody');
-      body.innerHTML = this._renderMarkdown(lastResponse);
-      this._bindResponseViewerInteractions(body);
+      if (lastResponse) {
+        body.innerHTML = this._renderMarkdown(lastResponse);
+        this._bindResponseViewerInteractions(body);
+      } else {
+        body.textContent = 'No response yet — send a message in this session first.';
+      }
 
       // Reset state for fresh open
       const title = document.getElementById('responseViewerTitle');
@@ -1657,6 +1666,9 @@ class CodemanApp {
       }
 
       // Render conversation thread
+      const mode = this.sessions.get(this.activeSessionId)?.mode;
+      const agentLabel =
+        mode === 'codex' ? 'Codex' : mode === 'gemini' ? 'Gemini' : mode === 'opencode' ? 'OpenCode' : 'Claude';
       body.innerHTML = '';
       for (const msg of messages) {
         const div = document.createElement('div');
@@ -1665,7 +1677,7 @@ class CodemanApp {
 
         const role = document.createElement('div');
         role.className = 'rv-role ' + (isUser ? 'rv-role-user' : 'rv-role-assistant');
-        role.textContent = isUser ? 'You' : 'Claude';
+        role.textContent = isUser ? 'You' : agentLabel;
         div.appendChild(role);
 
         const text = document.createElement('div');