Disable free GLM-5

[kiloconnect]

Disable the free GLM-5 (glm-5) model.

Changes

• Set is_enabled: false in src/lib/providers/zai.ts
• Removed the GLM-5 free notification from src/lib/notifications.ts
• Removed the GLM-5 entry from the approval test src/tests/openrouter-models-sorting.approved.json

This PR should be merged around Feb 22nd 23:59 Beijing Time (UTC+8) / Feb 22nd 16:59 Amsterdam Time (CET, UTC+1).

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Built for Christiaan by Kilo for Slack

[kiloconnect]

Code Review Summary

Status: No Issues Found | Recommendation: Merge

Notes

• The is_enabled: false approach is well-designed — it properly gates all free model behavior via isFreeModel(), isRateLimitedModel(), isDataCollectionRequiredOnKiloCodeOnly(), and the preferredModels fallback.
• The as KiloFreeModel → satisfies KiloFreeModel change in zai.ts is a nice improvement, consistent with the project's coding style rules.

Other Observations (not in diff)

File	Line	Observation
src/lib/models.ts	67	kiloFreeModels array still uses as KiloFreeModel[] — could be updated to satisfies KiloFreeModel[] for consistency with the satisfies change in this PR (not blocking).

Files Reviewed (3 files)

• src/lib/notifications.ts — notification entry removed
• src/lib/providers/zai.ts — model disabled, as → satisfies
• src/tests/openrouter-models-sorting.approved.json — test snapshot updated