Describe the bug

Every assistant message in Telegram DMs appears twice:

• Once as bot display name
• Once as "OpenClaw" (session auto-reply)

message tool (action=send) works correctly — single delivery.

Environment

• Version: OpenClaw 2026.6.11 (e085fa1)
• Channel: Telegram polling (single bot, no webhook)
• streaming.mode: tried off and partial — no effect
• Single agent, single account

Expected

One assistant turn = one Telegram message.

Actual

Every message duplicates: session reply + bot name appear as two separate messages in chat. System gateway restart notifications also duplicate.

#21060 Sakura Assistant: <text>
#session:xxx OpenClaw: <same text>