chore: SDK regeneration 2026-09-30

[GregHolmes]

Summary

• Regenerate the Java SDK with fernapi/fern-java-sdk 4.23.1.
• Retain required local patches for streaming query serialization, forward-compatible frames, reconnect policy, release-managed headers, model compatibility, equality contracts, and Agent provider unions.
• Remove the obsolete Agent V1 WebSocket pre-connect-close patch; Fern now generates it.
• Retain generated root-client WebSocket lifecycle management.

API Migration

SharedTopics and SharedIntents now correctly expose segments directly, matching production responses. This is source-breaking for consumers of the old generated path:

• results.topics.results.topics.segments becomes results.topics.segments
• results.intents.results.intents.segments becomes results.intents.segments

Release notes and versioning must call out this migration.

Generator Review

• Retry timeout diagnostics now include the closing parenthesis.
• connectionTimeoutMs, its validation, and the transport override remain locally patched; Fern still hardcodes 4000 ms.
• Root-client close now disconnects tracked WebSockets before shutting down SDK-owned OkHttp resources.
• The generator now buffers retryable error bodies and returns a prior HTTP response if a retry transport attempt fails; review this changed error-observation behavior.

Validation

• ./gradlew spotlessCheck test compileExamples

[GregHolmes]

Closing this regeneration because it was generated from deepgram-docs main rather than the intended Controls spec branch.