fix(language): add missing plugin validation

[sanny-io]

Now validates that all plugins have a provider.

Summary by CodeRabbit

• New Features

  • Added validation for plugin definitions.
  • Plugins must include a non-empty string provider value.
  • Duplicate plugin fields are now detected and reported.
  • Plugin discovery now safely skips entries with missing or invalid provider values.

• Tests

  • Added coverage for valid plugins and invalid provider configurations.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro Plus

Run ID: 5da6c611-3b7b-49cf-92bd-2da7c7921116

📥 Commits

Reviewing files that changed from the base of the PR and between ef60755 and 50f0c31.

📒 Files selected for processing (3)

• packages/language/src/utils.ts
• packages/language/src/validators/plugin-validator.ts
• packages/language/test/plugin.test.ts

🚧 Files skipped from review as they are similar to previous changes (2)

• packages/language/test/plugin.test.ts
• packages/language/src/validators/plugin-validator.ts

Included review availability: Your plan includes up to 8 reviews per rolling hour; 7 remain after this review.

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📝 Walkthrough

Walkthrough

The language validator now supports plugin validation. It checks duplicate fields and requires a non-empty string-literal provider. Plugin document resolution skips missing or non-string providers. Tests cover valid and invalid provider values.

Changes

Plugin validation

Layer / File(s)	Summary
Plugin validation rules packages/language/src/validators/plugin-validator.ts, packages/language/test/plugin.test.ts	PluginValidator checks duplicate fields and validates the required provider field. Tests cover valid, missing, empty, array, boolean, and object provider values.
Validator registration and delegation packages/language/src/validator.ts, packages/language/src/utils.ts	ZModelValidator registers Plugin nodes and delegates validation to PluginValidator. Plugin document resolution skips missing or non-string providers.

Estimated code review effort: 2 (Simple) | ~15 minutes

Merge Risk: ⚪ Minimal · up to 50f0c

This PR adds validation requiring plugins to have a provider; no actionable merge-blocking risk remains beyond normal checks and review.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly describes the main change: adding missing plugin validation in the language package.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

Warning

There were issues while running some tools. Please review the errors and either fix the tool's configuration or disable the tool if it's a critical failure.

🔧 ESLint

If the error stems from missing dependencies, add them to the package.json file. For unrecoverable errors (e.g., due to private dependencies), disable the tool in the CodeRabbit configuration.

packages/language/src/utils.ts

ESLint skipped: missing config or dependency (missing-dependency). The ESLint configuration references a package that is not available in the sandbox.

packages/language/src/validators/plugin-validator.ts

ESLint skipped: the ESLint configuration for this file references a package that is not available in the sandbox.

packages/language/test/plugin.test.ts

ESLint skipped: the ESLint configuration for this file references a package that is not available in the sandbox.

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