fix: resolve DM channel for agent:main:main sessions

The main agent session uses key 'agent:main:main' which doesn't
contain a channel ID. The session monitor now falls back to reading
deliveryContext/lastTo from sessions.json and resolves 'user:XXXX'
format via the Mattermost direct channel API.

Fixes: status watcher not tracking the main agent's active transcript

src/config.js

@@ -42,6 +42,7 @@ function buildConfig() {
       token: getEnv('MM_BOT_TOKEN', null, true),
       baseUrl: getEnv('MM_BASE_URL', 'https://slack.solio.tech'),
       maxSockets: getEnvInt('MM_MAX_SOCKETS', 4),
+      botUserId: getEnv('MM_BOT_USER_ID', null),
     },
 
     // Transcript directory (OpenClaw agents)

src/session-monitor.js

@@ -29,6 +29,9 @@ class SessionMonitor extends EventEmitter {
    * @param {string} opts.transcriptDir - Base /home/node/.openclaw/agents directory
    * @param {number} [opts.pollMs] - Poll interval in ms (default 2000)
    * @param {string|null} [opts.defaultChannel] - Fallback channel ID for non-MM sessions
+   * @param {string|null} [opts.mmToken] - Mattermost bot token (for DM channel resolution)
+   * @param {string|null} [opts.mmUrl] - Mattermost base URL
+   * @param {string|null} [opts.botUserId] - Bot's own Mattermost user ID
    * @param {object} [opts.logger] - pino logger
    */
   constructor(opts) {
@@ -36,10 +39,15 @@ class SessionMonitor extends EventEmitter {
     this.transcriptDir = opts.transcriptDir;
     this.pollMs = opts.pollMs || 500;
     this.defaultChannel = opts.defaultChannel || null;
+    this.mmToken = opts.mmToken || null;
+    this.mmUrl = opts.mmUrl || null;
+    this.botUserId = opts.botUserId || null;
     this.logger = opts.logger || null;
 
     // Map<sessionKey, sessionEntry>
     this._knownSessions = new Map();
+    // Cache: "user:XXXX" -> channelId (resolved DM channels)
+    this._dmChannelCache = new Map();
     this._pollTimer = null;
     this._running = false;
   }
@@ -198,10 +206,107 @@ class SessionMonitor extends EventEmitter {
   /**
    * Determine if a session is a Mattermost session.
    * @param {string} sessionKey
+   * @param {object} [sessionEntry] - Session entry from sessions.json
    * @returns {boolean}
    */
-  static isMattermostSession(sessionKey) {
-    return sessionKey.includes(':mattermost:') || sessionKey.includes(':mm:');
+  static isMattermostSession(sessionKey, sessionEntry) {
+    if (sessionKey.includes(':mattermost:') || sessionKey.includes(':mm:')) return true;
+    // Check deliveryContext/channel/lastChannel in session entry
+    if (sessionEntry) {
+      if (sessionEntry.channel === 'mattermost' || sessionEntry.lastChannel === 'mattermost') return true;
+      const dc = sessionEntry.deliveryContext;
+      if (dc && dc.channel === 'mattermost') return true;
+    }
+    return false;
+  }
+
+  /**
+   * Resolve channel ID from session entry's deliveryContext/lastTo/origin.
+   * Handles "user:XXXX" format by resolving DM channel via Mattermost API.
+   * @param {object} entry - Session entry from sessions.json
+   * @returns {Promise<string|null>} Channel ID
+   */
+  async resolveChannelFromEntry(entry) {
+    // Try deliveryContext.to first, then lastTo, then origin.to
+    const to = (entry.deliveryContext && entry.deliveryContext.to) || entry.lastTo || (entry.origin && entry.origin.to);
+    if (!to) return null;
+
+    // If it's a channel:XXXX format, extract directly
+    if (to.startsWith('channel:')) {
+      return to.slice(8);
+    }
+
+    // If it's a user:XXXX format, resolve the DM channel
+    if (to.startsWith('user:')) {
+      const userId = to.slice(5);
+      return this._resolveDmChannel(userId);
+    }
+
+    return null;
+  }
+
+  /**
+   * Resolve DM channel ID between the bot and a user via Mattermost API.
+   * @private
+   * @param {string} userId
+   * @returns {Promise<string|null>}
+   */
+  async _resolveDmChannel(userId) {
+    const cacheKey = `user:${userId}`;
+    if (this._dmChannelCache.has(cacheKey)) {
+      return this._dmChannelCache.get(cacheKey);
+    }
+
+    if (!this.mmToken || !this.mmUrl || !this.botUserId) {
+      if (this.logger) this.logger.warn({ userId }, 'Cannot resolve DM channel — missing mmToken/mmUrl/botUserId');
+      return null;
+    }
+
+    try {
+      const url = new URL('/api/v4/channels/direct', this.mmUrl);
+      const https = require('https');
+      const http = require('http');
+      const transport = url.protocol === 'https:' ? https : http;
+
+      const channelId = await new Promise((resolve, reject) => {
+        const body = JSON.stringify([this.botUserId, userId]);
+        const req = transport.request({
+          hostname: url.hostname,
+          port: url.port || (url.protocol === 'https:' ? 443 : 80),
+          path: url.pathname,
+          method: 'POST',
+          headers: {
+            'Authorization': `Bearer ${this.mmToken}`,
+            'Content-Type': 'application/json',
+            'Content-Length': Buffer.byteLength(body),
+          },
+          rejectUnauthorized: false,
+        }, (res) => {
+          let data = '';
+          res.on('data', (chunk) => { data += chunk; });
+          res.on('end', () => {
+            try {
+              const parsed = JSON.parse(data);
+              resolve(parsed.id || null);
+            } catch (_e) {
+              resolve(null);
+            }
+          });
+        });
+        req.on('error', (e) => { reject(e); });
+        req.write(body);
+        req.end();
+      });
+
+      if (channelId) {
+        this._dmChannelCache.set(cacheKey, channelId);
+        if (this.logger) this.logger.info({ userId, channelId }, 'Resolved DM channel');
+      }
+      return channelId;
+    } catch (err) {
+      if (this.logger) this.logger.warn({ userId, err: err.message }, 'Failed to resolve DM channel');
+      return null;
+    }
   }
 
   /**
@@ -228,6 +333,12 @@ class SessionMonitor extends EventEmitter {
           spawnDepth: entry.spawnDepth || 0,
           label: entry.label || null,
           channel: entry.channel || null,
+          // Preserve full entry for channel resolution
+          deliveryContext: entry.deliveryContext || null,
+          lastTo: entry.lastTo || null,
+          lastChannel: entry.lastChannel || null,
+          origin: entry.origin || null,
+          sessionFile: entry.sessionFile || null,
         });
       }
     }
@@ -253,14 +364,19 @@ class SessionMonitor extends EventEmitter {
    * Handle a newly detected session.
    * @private
    */
-  _onSessionAdded(entry) {
+  async _onSessionAdded(entry) {
     const { agentId, sessionKey, sessionId, spawnedBy, spawnDepth, label } = entry;
 
-    const transcriptFile = this._transcriptPath(agentId, sessionId);
+    // Use sessionFile from sessions.json if available, otherwise resolve
+    let transcriptFile = entry.sessionFile || null;
+    if (!transcriptFile || !fs.existsSync(transcriptFile)) {
+      transcriptFile = this._transcriptPath(agentId, sessionId);
+    }
 
     // Skip stale sessions — only track if transcript was modified in last 5 minutes
     // This prevents creating status boxes for every old session in sessions.json
     try {
+      // eslint-disable-next-line security/detect-non-literal-fs-filename
       const stat = fs.statSync(transcriptFile);
       const ageMs = Date.now() - stat.mtimeMs;
       const STALE_THRESHOLD_MS = 5 * 60 * 1000; // 5 minutes
@@ -287,11 +403,16 @@ class SessionMonitor extends EventEmitter {
     // Sub-agents always pass through — they inherit parent channel via watcher-manager
     const isSubAgent = !!spawnedBy;
 
-    // Resolve channel ID from session key
+    // Resolve channel ID — try session key first, then deliveryContext/lastTo
     let channelId = SessionMonitor.parseChannelId(sessionKey);
 
+    // If session key doesn't contain channel, resolve from session entry metadata
+    if (!channelId) {
+      channelId = await this.resolveChannelFromEntry(entry);
+    }
+
     // Fall back to default channel for non-MM sessions
-    if (!channelId && !isSubAgent && !SessionMonitor.isMattermostSession(sessionKey)) {
+    if (!channelId && !isSubAgent && !SessionMonitor.isMattermostSession(sessionKey, entry)) {
       channelId = this.defaultChannel;
       if (!channelId) {
         if (this.logger) {

src/watcher-manager.js

@@ -206,6 +206,9 @@ async function startDaemon() {
     transcriptDir: config.transcriptDir,
     pollMs: config.sessionPollMs,
     defaultChannel: config.defaultChannel,
+    mmToken: config.mm.token,
+    mmUrl: config.mm.baseUrl,
+    botUserId: config.mm.botUserId,
     logger: logger.child({ module: 'session-monitor' }),
   });