feat: allow security protocol

[Mokto]

Summary by cubic

Adds support for configuring Kafka security.protocol via BULKER_KAFKA_SECURITY_PROTOCOL to work with secure clusters (e.g., SASL_SSL). No change in default behavior unless the var is set.

• New Features
  • New config: KAFKA_SECURITY_PROTOCOL → sets security.protocol when provided.
  • Docs: added BULKER_KAFKA_SECURITY_PROTOCOL env var usage.

[cubic-dev-ai]

1 issue found across 2 files

Prompt for AI agents (all 1 issues)

Understand the root cause of the following 1 issues and fix them.


<file name=".docs/server-config.md">

<violation number="1" location=".docs/server-config.md:104">
Wording is unclear/grammatically incorrect. Consider a clearer description and code-formatting for the property name.</violation>
</file>

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