fix: persistent daemon startup, plugin integration, mobile fallback

- Hook handler now loads .env.daemon for proper config (plugin URL/secret, bot user ID)
- Hook logs to /tmp/status-watcher.log instead of /dev/null
- Added .env.daemon config file (.gitignored - contains tokens)
- Added start-daemon.sh convenience script
- Plugin mode: mobile fallback updates post message field with formatted markdown
- Fixed unbounded lines array in status-watcher (capped at 50)
- Added session marker to formatter output for restart recovery
- Go plugin: added updatePostMessageForMobile() for dual-render strategy
  (webapp gets custom React component, mobile gets markdown in message field)

Fixes: daemon silently dying, no plugin connection, mobile showing blank posts

hooks/status-watcher-hook/handler.js

@@ -22,6 +22,9 @@ const { spawn } = require('child_process');
 // PID file location (must match watcher-manager.js default)
 const PID_FILE = process.env.PID_FILE || '/tmp/status-watcher.pid';
 
+// Log file location
+const LOG_FILE = process.env.LIVESTATUS_LOG_FILE || '/tmp/status-watcher.log';
+
 // Path to watcher-manager.js (relative to this hook file's location)
 // Hook is in: workspace/hooks/status-watcher-hook/handler.js
 // Watcher is in: workspace/projects/openclaw-live-status/src/watcher-manager.js
@@ -30,6 +33,12 @@ const WATCHER_PATH = path.resolve(
   '../../projects/openclaw-live-status/src/watcher-manager.js',
 );
 
+// Path to .env.daemon config file
+const ENV_DAEMON_PATH = path.resolve(
+  __dirname,
+  '../../projects/openclaw-live-status/.env.daemon',
+);
+
 /**
  * Check if a process is alive given its PID.
  * Returns true if process exists and is running.
@@ -60,6 +69,31 @@ function isWatcherRunning() {
   }
 }
 
+/**
+ * Load .env.daemon file into an env object (key=value lines, ignoring comments).
+ * Returns merged env: process.env + .env.daemon overrides.
+ */
+function loadDaemonEnv() {
+  const env = Object.assign({}, process.env);
+  try {
+    // eslint-disable-next-line security/detect-non-literal-fs-filename
+    const content = fs.readFileSync(ENV_DAEMON_PATH, 'utf8');
+    for (const line of content.split('\n')) {
+      const trimmed = line.trim();
+      if (!trimmed || trimmed.startsWith('#')) continue;
+      const eqIdx = trimmed.indexOf('=');
+      if (eqIdx <= 0) continue;
+      const key = trimmed.slice(0, eqIdx).trim();
+      const val = trimmed.slice(eqIdx + 1).trim();
+      env[key] = val; // eslint-disable-line security/detect-object-injection
+    }
+    console.log('[status-watcher-hook] Loaded daemon config from', ENV_DAEMON_PATH);
+  } catch (_err) {
+    console.warn('[status-watcher-hook] No .env.daemon found at', ENV_DAEMON_PATH, '— using process.env only');
+  }
+  return env;
+}
+
 /**
  * Spawn the watcher daemon as a detached background process.
  * The parent (this hook handler) does not wait for it.
@@ -73,14 +107,32 @@ function spawnWatcher() {
 
   console.log('[status-watcher-hook] Starting Live Status v4 watcher daemon...');
 
+  // Load .env.daemon for proper config (plugin URL/secret, bot user ID, etc.)
+  const daemonEnv = loadDaemonEnv();
+
+  // Open log file for append — never /dev/null
+  let logFd;
+  try {
+    logFd = fs.openSync(LOG_FILE, 'a');
+    console.log('[status-watcher-hook] Logging to', LOG_FILE);
+  } catch (err) {
+    console.error('[status-watcher-hook] Cannot open log file', LOG_FILE, ':', err.message);
+    logFd = 'ignore';
+  }
+
   const child = spawn(process.execPath, [WATCHER_PATH, 'start'], {
     detached: true,
-    stdio: 'ignore',
-    env: process.env,
+    stdio: ['ignore', logFd, logFd],
+    env: daemonEnv,
   });
 
   child.unref();
 
+  // Close the fd in the parent process (child inherits its own copy)
+  if (typeof logFd === 'number') {
+    try { fs.closeSync(logFd); } catch (_e) { /* ignore */ }
+  }
+
   console.log(
     '[status-watcher-hook] Watcher daemon spawned (PID will be written to',
     PID_FILE + ')',