fix: show session title and workspace in /sessions picker

Read cwd from session.header (not only meta) and title from sessionTitle service or session/title events; list details in the message body and richer inline buttons.

Co-authored-by: Cursor <cursoragent@cursor.com>

lib/label.js

@@ -0,0 +1,107 @@
+const BUTTON_MAX = 64;
+export function readSessionCwd(session) {
+    const s = session;
+    const cwd = s?.header?.cwd ?? s?.meta?.cwd;
+    if (typeof cwd !== 'string')
+        return undefined;
+    const trimmed = cwd.trim();
+    return trimmed.length > 0 ? trimmed : undefined;
+}
+export function workspaceName(cwd) {
+    if (!cwd)
+        return undefined;
+    const parts = cwd.split(/[/\\]/).filter(Boolean);
+    return parts.length > 0 ? parts[parts.length - 1] : undefined;
+}
+export function readSessionTitle(ctx, session) {
+    if (!session)
+        return undefined;
+    try {
+        const svc = ctx
+            ?.sessionTitle;
+        const snap = svc?.get?.(session);
+        if (snap?.title && String(snap.title).trim())
+            return String(snap.title).trim();
+    }
+    catch {
+        // optional service
+    }
+    try {
+        const projections = ctx?.sessionProjections;
+        const projected = projections?.get?.(session, 'title');
+        if (typeof projected === 'string' && projected.trim())
+            return projected.trim();
+    }
+    catch {
+        // optional service
+    }
+    const events = session.events;
+    if (Array.isArray(events)) {
+        for (let i = events.length - 1; i >= 0; i -= 1) {
+            const ev = events[i];
+            if (ev?.type === 'session/title' && typeof ev.data?.title === 'string') {
+                const t = ev.data.title.trim();
+                if (t)
+                    return t;
+            }
+        }
+    }
+    return undefined;
+}
+export function describeAgent(agent, index, ctx) {
+    const sessionId = String(agent.id);
+    const idTail = sessionId.length > 12 ? sessionId.slice(-12) : sessionId;
+    const cwd = readSessionCwd(agent.session);
+    const title = readSessionTitle(ctx, agent.session);
+    return {
+        index,
+        title,
+        cwd,
+        workspace: workspaceName(cwd),
+        idTail,
+        sessionId,
+    };
+}
+/** Compact label for inline keyboard buttons (Telegram ≤64 chars). */
+export function buttonLabel(parts) {
+    const n = parts.index + 1;
+    const primary = parts.title || parts.workspace || `session ${n}`;
+    let text = `${n}. ${primary}`;
+    if (parts.title && parts.workspace) {
+        const withWs = `${n}. ${parts.title} · ${parts.workspace}`;
+        if ([...withWs].length <= BUTTON_MAX)
+            text = withWs;
+    }
+    if ([...text].length <= BUTTON_MAX)
+        return text;
+    const chars = [...text];
+    return `${chars.slice(0, BUTTON_MAX - 1).join('')}…`;
+}
+/** Multi-line detail block for the picker message body. */
+export function detailLines(parts) {
+    const lines = [`${parts.index + 1}. ${parts.title ?? '（无标题）'}`];
+    if (parts.cwd) {
+        lines.push(`   工作区：${parts.cwd}`);
+    }
+    else if (parts.workspace) {
+        lines.push(`   工作区：${parts.workspace}`);
+    }
+    else {
+        lines.push('   工作区：（未知）');
+    }
+    lines.push(`   ID：…${parts.idTail}`);
+    return lines.join('\n');
+}
+/** Human label stored on bind / status (not length-capped as hard as buttons). */
+export function displayLabel(parts) {
+    const bits = [];
+    if (parts.title)
+        bits.push(parts.title);
+    if (parts.workspace)
+        bits.push(parts.workspace);
+    if (bits.length === 0)
+        bits.push(`session ${parts.index + 1}`);
+    bits.push(`…${parts.idTail}`);
+    const text = bits.join(' · ');
+    return text.length > 120 ? `${text.slice(0, 117)}...` : text;
+}