dograh-v1.48.0

## 1.48.0 (2026-10-02)

<!-- Release notes generated using configuration in .github/release.yml at main -->

## What's Changed
### Features
* feat: expose OTEL endpoint for telemetry by @a6kme in https://github.com/dograh-hq/dograh/pull/788
* feat: enhance answer supervisor to listen even when playing initial greeting by @a6kme in https://github.com/dograh-hq/dograh/pull/790
* feat: add tts caching for MiniMax TTS by @a6kme in https://github.com/dograh-hq/dograh/pull/796
* feat(ui): config-driven event banner, SF Tech Week + Cloudonix by @sandeepvemu-dograh in https://github.com/dograh-hq/dograh/pull/801
* feat: select median TTS cache audio from reserved candidates by @a6kme in https://github.com/dograh-hq/dograh/pull/803
* feat: add canadacentral Azure Speech region by @paramedicspecialist in https://github.com/dograh-hq/dograh/pull/792
* feat: allow editing markdown and text files in knowledge base by @a6kme in https://github.com/dograh-hq/dograh/pull/807
* feat: form-encoded http tool bodies, transfer greeting toggle and transfer fixes by @a6kme in https://github.com/dograh-hq/dograh/pull/808
* feat: add org-configured BigQuery call event exports by @a6kme in https://github.com/dograh-hq/dograh/pull/805
* feat: add campaign traffic splits and workflow version links by @a6kme in https://github.com/dograh-hq/dograh/pull/810
* feat: filter billing ledger by credit, usage, and date by @a6kme in https://github.com/dograh-hq/dograh/pull/824
* feat: default Cartesia TTS to sonic-3.6 by @a6kme in https://github.com/dograh-hq/dograh/pull/826
* feat(mcp): add list_calls and get_call_transcript tools by @chewwbaka in https://github.com/dograh-hq/dograh/pull/813
* feat: add Hopper LLM provider (Gemma 4 31B) by @jashwanth-12 in https://github.com/dograh-hq/dograh/pull/831
### Bug Fixes
* fix: add multi locale in answer supervisor by @a6kme in https://github.com/dograh-hq/dograh/pull/782
* fix: extract node variables when a text chat ends without a transition by @a6kme in https://github.com/dograh-hq/dograh/pull/783
* fix: fix call response watchdog and user idle controller by @a6kme in https://github.com/dograh-hq/dograh/pull/802
* fix: skip Telnyx recording lifecycle events instead of logging unexpected status updates by @a692570 in https://github.com/dograh-hq/dograh/pull/799
* fix: set an Outbound Voice Profile on auto-created Telnyx Call Control Applications by @a692570 in https://github.com/dograh-hq/dograh/pull/797
* fix: return a uniform 404 from the Telnyx events route so unsigned callers cannot enumerate run ids by @a692570 in https://github.com/dograh-hq/dograh/pull/798
* fix: align Telnyx informational event skip list with the real event catalog by @a6kme in https://github.com/dograh-hq/dograh/pull/804
* fix: adopt bounded MiniMax TTS retries by @a6kme in https://github.com/dograh-hq/dograh/pull/809
* fix: seed Gemini Live node-transition context after reconnect settles by @chewwbaka in https://github.com/dograh-hq/dograh/pull/816
* fix: resolve deprecated timezone aliases on billing credits endpoint by @chewwbaka in https://github.com/dograh-hq/dograh/pull/827
* fix: prevent agent worker leaks after setup hangup by @a6kme in https://github.com/dograh-hq/dograh/pull/835
* fix(docker): drop NLTK punkt_tab download removed by Pipecat 1.12 by @a6kme in https://github.com/dograh-hq/dograh/pull/836
* fix(sarvam): route LLM to v1 endpoint and support configurable base_url by @amitbhakt in https://github.com/dograh-hq/dograh/pull/839
* fix: preserve agent handoff history and opening responses by @a6kme in https://github.com/dograh-hq/dograh/pull/844
* fix: forward Twilio SIP Call-ID to Tuner for simulation linking by @HamzaFouad in https://github.com/dograh-hq/dograh/pull/837
* fix: pull MinIO from dograh's own image by @a6kme in https://github.com/dograh-hq/dograh/pull/847
### Documentation
* docs(api): customMessage plays before tool execution, not after by @AAlexxis222 in https://github.com/dograh-hq/dograh/pull/722
### Other Changes
* Eot model min word by @a6kme in https://github.com/dograh-hq/dograh/pull/832
* Upgrade Pipecat to v1.12.0 and default Gemini Live to 3.8 by @a6kme in https://github.com/dograh-hq/dograh/pull/833
* Add optional spoken introductions to Twilio call transfers by @a6kme in https://github.com/dograh-hq/dograh/pull/843

## New Contributors
* @paramedicspecialist made their first contribution in https://github.com/dograh-hq/dograh/pull/792
* @AAlexxis222 made their first contribution in https://github.com/dograh-hq/dograh/pull/722
* @jashwanth-12 made their first contribution in https://github.com/dograh-hq/dograh/pull/831
* @amitbhakt made their first contribution in https://github.com/dograh-hq/dograh/pull/839
* @HamzaFouad made their first contribution in https://github.com/dograh-hq/dograh/pull/837

**Full Changelog**: https://github.com/dograh-hq/dograh/compare/dograh-v1.47.0...dograh-v1.48.0

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