ADMIN_USER_IDS (Telegram:AdminUserIds) takes a comma separated list; the older
ADMIN_USER_ID / Telegram:AdminUserId still works, also takes a list and is merged.
Empty entries and duplicates are ignored, non-numeric entries fail validation.
Impersonation is now per admin: one admin per target, an impersonating admin
can't be impersonated, and every admin's chat menu lists /impersonate.
OpenAI gpt-4o-mini-tts (female voice nova by default; TTS_MODEL/TTS_VOICE) renders OGG/Opus,
sent with sendVoice in order with rendered output. Up to 4500 characters per call, split
into 1500-character parts at paragraph/sentence/word boundaries; all parts are synthesized
before any is sent, and API errors come back to the agent as text with the key hidden.
On whenever OPENAI_API_KEY is set.
While on, the admin's updates are routed as the target user's (allow-list,
chat, workspace, session, settings, jobs) and the target chat's output goes
to the admin's chat. The target's own updates are dropped with a notice that
an admin is working with their account. In memory; /impersonate 0 stops.
- A speech or download timeout (TaskCanceledException nobody asked for) is a failure
with the user notice, not a silent shutdown; OpenAiSpeechToText maps it to
"the request timed out."; UpdateRouter only treats the caller's cancellation as shutdown.
- send: WorkspacePaths resolves the real path component by component (realpath),
closing the directory-link-inside-target bypass; `.` reports a directory.
- Image documents are attached inline only when their magic bytes are JPEG/PNG/GIF/WebP,
under the detected type.
- Audio goes to STT as an ASCII audio.<ext> name.
- MCP Browser section mentions send only when it is active.
- RunInOrderAsync takes a cancellation token; queued work is skipped once disposal gives up;
SendReplyAsync stays private behind ReplyInOrderAsync.
- Speech HttpClient handler recycles pooled connections; BuiltInTools.Send();
IExtensionHost.Channel is abstract; WorkspacePaths in its own file.
- Tests: timeouts, symlink chains (Linux), sniffing, channel delivery failures,
queued-work cancellation, gated voice ordering. Spec and docs updated.
Add TelegramLimits, TelegramChatChannel (every delivery through
ChatRenderer.RunInOrderAsync, auto photo falls back to a document on a 400)
and wire it into ChatRegistry as AgentSessionOptions.Channel and
ChatContext.Channel. Spec: SendTextAsync names its failure text
("Telegram did not accept the message.") and throws when any chunk fails.
