Fix lint/type issues and make anti-patterns optional

[zz-plant]

Motivation

• Fix lint and TypeScript errors that were failing the repository checks and CI tasks.
• Remove unnecessary async/await usage and improve test typings to satisfy eslint and tsc rules.
• Align content schema and page logic to support optional mechanism anti-patterns without runtime errors.
• Make small correctness fixes to route handlers and structured-data typing to eliminate type warnings.

Description

• Update Astro container tests to derive an AstroComponentFactory type, cast components for renderToString, and tighten mock behavior for middleware next to return a Promise.
• Convert JSON API route handlers to synchronous GET functions where no await is used to address @typescript-eslint/require-await.
• Add optional antiPatterns to the library content types and content schema in src/content.config.ts and guard uses in src/pages/mechanisms/patterns/[slug].astro and src/utils/api.ts to avoid undefined access.
• Relax structured data typing in src/layouts/BaseLayout.astro and fix the redirect param usage in src/pages/library/patterns/[slug].astro.

Testing

• Ran the full check via bun run check, which runs linting, unit tests, typecheck, and astro:check, and it completed successfully.
• Unit tests (bun test src) passed with all tests green aside from intentionally skipped integration/DOM-heavy tests.
• Type checking (bun run typecheck) completed without errors.
• Content validators bun run validate:json and bun run validate:glossary both succeeded.

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Codex Task

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Status	Name	Latest Commit	Preview URL	Updated (UTC)
✅ Deployment successful! View logs	et3	f0d1693	Commit Preview URL Branch Preview URL	Jan 13 2026, 04:46 PM

[gemini-code-assist]

Summary of Changes

Hello @zz-plant, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request focuses on enhancing the codebase's robustness and maintainability by addressing a range of linting and TypeScript issues. Key changes include optimizing API route handlers, making the 'antiPatterns' content field optional for greater flexibility, and refining test typings for Astro components. These updates collectively ensure a cleaner, more type-safe, and efficient application, resolving previous CI failures and improving developer experience.

Highlights

• Linting and TypeScript Fixes: Resolved various linting and TypeScript errors that were causing CI failures, improving overall code quality and adherence to standards.
• API Route Handler Optimization: Converted JSON API route handlers to synchronous GET functions by removing unnecessary async/await keywords, addressing @typescript-eslint/require-await warnings.
• Optional Anti-Patterns in Content Schema: Introduced an optional antiPatterns field to the library content types and schema, allowing for more flexible content definition without runtime errors.
• Improved Astro Component Test Typings: Updated Astro container tests to derive an AstroComponentFactory type and cast components for renderToString, enhancing type safety in tests.
• Refined Structured Data and Redirect Handling: Relaxed structured data typing in BaseLayout.astro and corrected redirect parameter usage in src/pages/library/patterns/[slug].astro.

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[gemini-code-assist]

Code Review

This pull request effectively addresses a range of linting and TypeScript issues, enhancing code quality and robustness. Key improvements include removing unnecessary async/await keywords, strengthening type safety in tests and API route handlers, and refactoring the content schema to make antiPatterns optional. The changes are well-executed and align with modern TypeScript best practices. I have one minor suggestion to improve test readability.

[gemini-code-assist]

While this loop correctly checks for the presence of all expected blockers, using expect.arrayContaining is more idiomatic and declarative for this kind of assertion in a test. It can make the test more concise and often provides a more helpful diff when it fails.

    expect(blockers).toEqual(expect.arrayContaining(expectedBlockers));