v0.4.3

## What's Changed
* fix(sdk): align TypeScript confidence contract with HTTP responses by @debjyotikm in https://github.com/NandhaKishorM/laya/pull/1072
* feat(serve): answer large choices by elimination behind LAYA_TOURNAMENT_GROUP (#302) by @kmitul in https://github.com/NandhaKishorM/laya/pull/1073
* fix(verify): isolate the soak concurrency burst in a helper process by @aashish254 in https://github.com/NandhaKishorM/laya/pull/1074
* chore(deps): bump actions/checkout from 4.4.0 to 7.0.1 by @dependabot[bot] in https://github.com/NandhaKishorM/laya/pull/1075
* chore(deps): bump actions/setup-python from 5.6.0 to 7.0.0 by @dependabot[bot] in https://github.com/NandhaKishorM/laya/pull/1076
* chore(deps-dev): bump @types/node from 26.6.3 to 26.6.4 in /laya-ts by @dependabot[bot] in https://github.com/NandhaKishorM/laya/pull/1078
* chore(deps): bump ruff from 0.16.9 to 0.16.10 by @dependabot[bot] in https://github.com/NandhaKishorM/laya/pull/1079
* chore(deps): bump actions/setup-node from 7.0.0 to 7.1.0 by @dependabot[bot] in https://github.com/NandhaKishorM/laya/pull/1080
* chore(deps): bump actions/upload-artifact from 4.6.2 to 7.0.2 by @dependabot[bot] in https://github.com/NandhaKishorM/laya/pull/1081
* chore(deps): bump actions/download-artifact from 8.0.1 to 8.0.2 by @dependabot[bot] in https://github.com/NandhaKishorM/laya/pull/1082
* docs(guardrails): the #781 page and suite must report only what #781 measured by @aashish254 in https://github.com/NandhaKishorM/laya/pull/1084
* fix(serve): the LAYA_DEFAULT_MODEL default column said english by @aashish254 in https://github.com/NandhaKishorM/laya/pull/1085
* docs(readme): /predict/batch copies one budget to every state by @aashish254 in https://github.com/NandhaKishorM/laya/pull/1086
* ci(java): remeasure model-free test floors on merged main by @Bruce-Yii in https://github.com/NandhaKishorM/laya/pull/1090
* fix(mcp): report a dropped option_order instead of refusing the call by @Bruce-Yii in https://github.com/NandhaKishorM/laya/pull/1091
* fix(examples): the demo server pinned the routing fallback to english by @aashish254 in https://github.com/NandhaKishorM/laya/pull/1092
* docs(routing): the mixed-batch guide omitted the two per-request token budgets by @aashish254 in https://github.com/NandhaKishorM/laya/pull/1093
* docs(finetune): table the three laya-train flags no page documented by @aashish254 in https://github.com/NandhaKishorM/laya/pull/1094
* test(docs): make prose citations into symbols, and check that they resolve by @aashish254 in https://github.com/NandhaKishorM/laya/pull/1095
* test(benchmarks): check the published headline cells against the T4 run by @aashish254 in https://github.com/NandhaKishorM/laya/pull/1096
* docs: correct default-model guidance in deployment surfaces by @Bruce-Yii in https://github.com/NandhaKishorM/laya/pull/1097
* docs(readme): the abstention cut is not option-count invariant, and the map is the fix by @aashish254 in https://github.com/NandhaKishorM/laya/pull/1098
* docs(citations): five prose citations that named no symbol, three pointing elsewhere by @aashish254 in https://github.com/NandhaKishorM/laya/pull/1099
* docs(evals): retire a comment describing thresholds the module deleted by @aashish254 in https://github.com/NandhaKishorM/laya/pull/1101
* test(packaging): bind CONTRIBUTING.md's suite section to the shared list by @aashish254 in https://github.com/NandhaKishorM/laya/pull/1103
* fix(shortlist): the cache dimensionality guard reads under the lock by @aashish254 in https://github.com/NandhaKishorM/laya/pull/1104
* fix(mcp): align model schema nullability by @Ha1baraA11 in https://github.com/NandhaKishorM/laya/pull/1105
* fix(laya-ts): match min_confidence bucket-key error text to Python and Java (#1100) by @bhargavmehta01 in https://github.com/NandhaKishorM/laya/pull/1106
* feat(ts): add tournament selection for large choice sets by @xinpingzh in https://github.com/NandhaKishorM/laya/pull/1108
* fix(calibrate): a falsy non-object temperature_by_options is a refused shape by @aashish254 in https://github.com/NandhaKishorM/laya/pull/1109
* fix(cli): disambiguate bare question id 'questions' from wrapper object (#1110) by @Sarthak-Pandey in https://github.com/NandhaKishorM/laya/pull/1113
* feat(ts): port cached embedder to TypeScript SDK by @Swatantra-66 in https://github.com/NandhaKishorM/laya/pull/1117
* feat(confidence): export jev_confidence, the formula behind the served x_jev_confidence by @aashish254 in https://github.com/NandhaKishorM/laya/pull/1083

## New Contributors
* @bhargavmehta01 made their first contribution in https://github.com/NandhaKishorM/laya/pull/1106

**Full Changelog**: https://github.com/NandhaKishorM/laya/compare/v0.4.2...v0.4.3