Zod(POC): Initial jenny for schema generation

[kristinademeshchik]

Adds a Zod jenny that generates Zod v4 schemas from CUE kinds. Output is intended for runtime validation of payloads (e.g. Grafana's dashboard mutation API) and for LLM tool-call schemas via z.toJSONSchema().

Known issues

• Numeric type fidelity — uint* doesn't add .nonnegative(); bit widths don't add .gte/.lte constraints; z.number() accepts NaN/Infinity. Affects e.g. revision: uint16 in v2beta1.
• Recursive cycles trip TS strict-mode inference (TS7022/TS7024) on the layout/tab/formatter groups. Suppressed via file-level // @ts-nocheck for now; proper fix is explicit z.ZodType<X> annotations on cycle members via SCC detection.

Generated dashboards zod schemas - grafana/grafana#125222

[github-actions]

Note: the diff show code changes that would be introduced by this PR to the output of the Grafana Foundation SDK codegen pipeline.

See full diff.

🔎 Changes to Grafana Foundation SDK

[Copilot]

Pull request overview

Adds an initial “zod” output language to the codegen pipeline, generating Zod v4 schemas from the CUE-derived AST for runtime validation and JSON Schema export.

Changes:

• Extend pipeline output configuration to support a new zod language (config + wiring).
• Introduce a Zod jenny that emits schemas.gen.ts files with Zod schemas for AST types.
• Add Zod-specific output options (layout/filename/defaults/object unknown-key behavior).

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
schemas/pipeline.json	Adds zod to the pipeline output schema and defines ZodConfig.
internal/jennies/zod/jennies.go	Defines Zod language/config and compiler passes used for Zod emission.
internal/jennies/zod/rawtypes.go	Implements the core Zod schema emitter (structs/scalars/refs/enums/unions/etc.).
internal/jennies/zod/tools.go	Adds helpers for output paths, TS literal formatting, field quoting, and descriptions.
internal/codegen/pipeline.go	Wires zod into language selection in the pipeline.
internal/codegen/output.go	Adds zod to the YAML output-language struct and parameter interpolation.

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