chore: rename testkube-ai-service.db to postgres to align with other services

[de-wim]

Updated testkube-ai-service documentation to accompany helm changes of https://github.com/kubeshop/testkube-cloud-api/pull/3238

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Project	Deployment	Actions	Updated (UTC)
testkube-docs	Ready	Preview, Comment	Mar 25, 2026 3:50pm

[greptile-apps]

Greptile Summary

This PR updates the AI enabling documentation to reflect the Helm chart rename of the testkube-ai-service database key from db to postgres, aligning it with changes in testkube-cloud-api#3238. It also fixes a missing trailing newline at the end of the file.

Key changes:

• Renames db: → postgres: in the YAML Helm configuration example (docs/articles/ai-enabling.mdx, line 32).
• Adds a missing trailing newline at end of file.

Issue found:

• The Default Values Reference table on line 76 still refers to testkube-ai-service.db.* — this was not updated alongside the YAML config block, leaving the documentation inconsistent.

Confidence Score: 4/5

• Safe to merge after fixing the stale db.* reference in the Default Values table.
• The change is straightforward and correct in the YAML example block, but a leftover testkube-ai-service.db.* in the reference table creates documentation inconsistency. Once that single line is fixed, the PR is clean.
• docs/articles/ai-enabling.mdx line 76 — the Default Values Reference table still uses the old db.* key name.

Important Files Changed

Filename	Overview
docs/articles/ai-enabling.mdx	Updated YAML config example to use postgres: instead of db:, and added missing trailing newline. However, the Default Values Reference table on line 76 still references the old testkube-ai-service.db.* key and was not updated to match.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[Helm Chart: testkube-ai-service] --> B[enabled: true]
    A --> C["postgres: (renamed from db:)"]
    A --> D[llmApi]

    C --> C1[secretRef.name]
    C --> C2[secretRef.endpointKey]
    C --> C3[secretRef.usernameKey]
    C --> C4[secretRef.passwordKey]
    C --> C5[name: testkube_ai]

    D --> D1[secretRef]
    D --> D2[secretRefKey]

    E[testkube-cloud-api] --> E1[aiApiSubdomain]
    E --> E2[restApiSubdomain]

    F[testkube-cloud-ui] --> F1["ai.enabled: true"]

    style C fill:#90EE90
    style A fill:#lightblue

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Comments Outside Diff (1)

1. docs/articles/ai-enabling.mdx, line 76 (link)

   Stale db.* reference in Default Values table

   The YAML config block was updated from db: to postgres: (line 32), but the Default Values Reference table on this line still uses the old key name testkube-ai-service.db.*. This leaves the documentation internally inconsistent — the table no longer matches the Helm values structure described above it.

_{Reviews (1): Last reviewed commit: "chore: rename testkube-ai-service.db to ..." | Re-trigger Greptile}