feat(zai): set default temperature to 0.6

[roomote]

Update default temperature for Z AI provider to 0.6.

Changes:

• Updated constant ZAI_DEFAULT_TEMPERATURE from 0 to 0.6.

Validation:

• Unit tests passed for Z AI provider: cd src && npx vitest run api/providers/tests/zai.spec.ts
• Types and linting passed via pre-commit hooks.

Impact:

• Applies to default temperature used by Z AI provider when not overridden by user or per-call settings.

Notes:

• No behavioral changes beyond the new default temperature.

---

Important

Update ZAI_DEFAULT_TEMPERATURE in zai.ts from 0 to 0.6, affecting default behavior when not overridden.

• Behavior:
  • Update ZAI_DEFAULT_TEMPERATURE in zai.ts from 0 to 0.6.
  • Affects default temperature for Z AI provider when not overridden.
• Validation:
  • Unit tests passed in zai.spec.ts.
  • Types and linting passed via pre-commit hooks.

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[roomote]

CI shows one failing job: integration-test (list_files Tool: "Should list symlinked files and directories"). This appears unrelated to this change, which only updates export const ZAI_DEFAULT_TEMPERATURE() from 0 to 0.6. All other checks passed. I do not have permission to rerun the workflow (got: "Resource not accessible by integration"). Could a maintainer please rerun the failed job? Logs: https://github.com/RooCodeInc/Roo-Code/actions/runs/18446476194/job/52553912406 PR: #8627