2.2.79

## What's Changed
* [NA] [SDK] fix: treat blank OPIK_CONFIG_PATH as unconfigured by @sbguangha in https://github.com/comet-ml/opik/pull/8293
* [NA] [INFRA] fix: minio healthcheck on arm64 by @petrotiurin in https://github.com/comet-ml/opik/pull/8509
* [NA] [DOCS] alerts: you can alert on custom metrics, and the new alert form by @aswynz in https://github.com/comet-ml/opik/pull/8086
* [NA] [DOCS] docs: fix Codex OTel config TOML and set correct expectations for trace export by @aswynz in https://github.com/comet-ml/opik/pull/8289
* [OPIK-7791] [GHA] radar trigger: dispatch the spec harvest on merge to main by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/8502
* [issue-8524] [SDK] fix: drop temperature for Bedrock OpenAI GPT-5.x / GPT-6 judge models by @kimnamu in https://github.com/comet-ml/opik/pull/8525
* [NA] [SDK] fix: report a dangling dictionary separator instead of raising IndexError by @anishmehta24 in https://github.com/comet-ml/opik/pull/8516
* [NA] [SDK] fix: validate BLEU n_grams and empty sequences by @anishmehta24 in https://github.com/comet-ml/opik/pull/8486
* [NA] [SDK] fix: fetch the vader_lexicon corpus instead of raising LookupError by @anishmehta24 in https://github.com/comet-ml/opik/pull/8489
* [NA] [SDK] fix: count the envelope against the dataset batch size cap by @anishmehta24 in https://github.com/comet-ml/opik/pull/8513
* [OPIK-7791] [QA] e2e specs for release 2.2.78 by @CometActions in https://github.com/comet-ml/opik/pull/8511
* [NA] [SDK] fix: tokenize METEOR input before calling NLTK by @anishmehta24 in https://github.com/comet-ml/opik/pull/8476
* [issue-8134] [SDK] fix: namespace the judge prompt delimiters around SUT output in the context metrics by @feiiiiii5 in https://github.com/comet-ml/opik/pull/8379
* [OPIK-8274] [BE] perf: stream trace and span inserts via the ClickHouse v2 client by @thiagohora in https://github.com/comet-ml/opik/pull/8483
* [OPIK-4954] [FE] fix: render output media in the experiment item views by @JetoPistola in https://github.com/comet-ml/opik/pull/8469
* build(deps): bump astral-sh/setup-uv from 10.0.1 to 10.1.0 in the github-actions-minor group across 1 directory by @dependabot[bot] in https://github.com/comet-ml/opik/pull/8344
* build(deps-dev): bump @types/node from 26.4.0 to 26.6.2 in /tests_end_to_end/e2e in the e2e group across 1 directory by @dependabot[bot] in https://github.com/comet-ml/opik/pull/8343
* fix(metrics): score ChrF against each reference for multiple references by @chuenchen309 in https://github.com/comet-ml/opik/pull/7487
* [OPIK-7983] [BE] [FE] feat: automatic first diagnostic run, credits pre-check and new empty state by @miguelgrc in https://github.com/comet-ml/opik/pull/8351
* [OPIK-8373] [BE] docs: the post-swap compare cannot be quiesced into a PASS by @andrescrz in https://github.com/comet-ml/opik/pull/8534
* [OPIK-8511] [BE] fix: pin the thread-query join build side so large threads stop OOMing by @thiagohora in https://github.com/comet-ml/opik/pull/8503

## New Contributors
* @sbguangha made their first contribution in https://github.com/comet-ml/opik/pull/8293
* @kimnamu made their first contribution in https://github.com/comet-ml/opik/pull/8525

**Full Changelog**: https://github.com/comet-ml/opik/compare/2.2.78...2.2.79