maintainer edit: make gateway execution, WebUI automation listing, and delete protection agree on the new bound cron shape. Legacy delivery payloads that carry sessionKey are excluded from the WebUI-bound automation surface.
maintainer edit: keep existing cron jobs with legacy delivery fields on the legacy execution path, even when they already carry a sessionKey. This preserves deliver=false behavior and channel-specific routing metadata for upgraded jobs.
maintainer edit: treat job-level CancelledError as a failed cron run so bound automation cancellations update run history and do not break subsequent scheduling.
Maintainer edit: split final streamed Telegram markdown before rendering to HTML so long fenced code blocks do not produce unbalanced <pre><code> chunks while still respecting Telegram's rendered HTML limit.
Move the fenced-code-block-aware splitting logic out of the shared
split_message helper (used by Signal, Slack, Discord, Weixin, etc.)
and into a Telegram-specific _split_telegram_markdown function.
The shared split_message remains a plain-text chunker. The Telegram
channel now uses _split_telegram_markdown for its raw Markdown paths
that feed _markdown_to_telegram_html, preventing broken HTML rendering
when splits fall inside fenced code blocks.
Also fixes a regression where content beginning with whitespace before
a fence could emit a whitespace-only chunk.
Addresses review feedback on #4257.
When split_message splits a long message, it now checks whether the
split point falls inside a fenced code block. If so, it either moves
the split to before the opening fence or closes/reopens the fence
across chunks, preventing broken HTML rendering.
Addresses #4250
- Register SiliconFlow in transcription registry with default model
FunAudioLLM/SenseVoiceSmall and alias 'silicon'
- Reuse existing OpenAITranscriptionProvider adapter (Whisper-compatible)
- Add generic key/base resolution: fallback to registry env_key and
default_api_base when provider config is absent
- Add tests for registry entry, alias, adapter, default model, and
config resolution with env var fallback
maintainer edit: streamed timeout recovery was returning the retried response internally while the channel still treated the final outbound as already streamed. End the current stream segment before retry/fallback recovery so subsequent deltas are delivered in a new segment.
When a stream stalls mid-response, both the retry layer and
FallbackProvider blocked recovery because content had already been
emitted via on_content_delta. This left users with truncated replies
and no automatic recovery.
For error_kind="timeout" specifically:
- _run_with_retry now suppresses delta callbacks and retries the same
model instead of returning immediately
- FallbackProvider now allows failover to a different model with
delta callbacks suppressed
Non-timeout errors retain the original "skip retry/failover after
streamed content" behavior to avoid duplicate output.
The channel manager coalesces consecutive _stream_delta messages and
forwards a single merged message with _stream_end=True. In that path
no individual delta events ever reach the WebUI client, so the
stream_end frame is the only carrier of the text. The previous guard
only attached text when media-URL rewriting changed the string, which
silently dropped entire turns of plain-text output whenever the
agent generated tokens faster than the queue drained.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
- Add StepFunTranscriptionProvider class in nanobot/providers/transcription.py
- New _post_stepfun_asr_with_retry() function handling SSE stream parsing
(transcript.text.delta → transcript.text.done event sequence)
- Register 'stepfun' in transcription_registry.py with default model stepaudio-2.5-asr
- Reuse existing stepfun provider config (apiBase can point to Plan endpoint)
- Add 17 tests covering SSE parsing, retry contract, empty-text edge case, and registry integration
- Update docs/configuration.md with stepfun ASR documentation
StepFun ASR uses a dedicated SSE endpoint (/v1/audio/asr/sse) rather
than the chat-completions or Whisper multipart formats used by other
providers. Users on Step Plan can set apiBase to the Plan endpoint.
