fix: warn when /sessions falls back to live-only list (v0.3.3)

Phone showed 2 sessions because apiProxy catalog failed (pre-0.3.2 inject bug) and live-agent fallback hid cold Web sessions. Surface that mode explicitly.

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

package.json

@@ -1,6 +1,6 @@
 {
   "name": "dsh-telegram-channel",
-  "version": "0.3.2",
+  "version": "0.3.3",
   "description": "DeepSeek Harness Telegram mobile remote: workspace→session picker (Web-aligned), /model switch, same trajectory — dsh-plugin",
   "keywords": [
     "telegram",