chore(js): Updating typescript to 5.9.3 and a few other chores

[ifielker]

Updating to the latest typescript library across the board.
Also some related updates of other libraries and a few deprecated model fixes in testapps along the way.

Checklist (if applicable):

• PR title is following https://www.conventionalcommits.org/en/v1.0.0/
• Tested (manually, unit tested, etc.)
• Docs updated (updated docs or a docs bug required)

[gemini-code-assist]

Summary of Changes

Hello, 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 primarily focuses on a significant upgrade of the TypeScript compiler to version 5.9.3 across the entire JavaScript codebase, ensuring compatibility with the latest language features and improvements. Alongside the TypeScript upgrade, several other development dependencies and core libraries have been updated to their latest versions, enhancing overall project stability and leveraging newer functionalities. Additionally, minor code adjustments were made to address deprecated model usage and improve type safety in specific plugins, ensuring the project remains current and robust.

Highlights

• TypeScript Upgrade: Updated TypeScript to version 5.9.3 across all JavaScript packages and test applications, ensuring compatibility with the latest language features and improvements.
• Dependency Updates: Upgraded various development dependencies, including typedoc and related plugins, next.js, and sharp, to their latest versions.
• New Dependency: Introduced handlebars as a new dependency in js/ai/package.json.
• Model Reference Updates: Updated imagen model references from imagen-3.0-generate-002 to imagen-4.0-generate-001 in relevant test applications and samples.
• Code Refinements: Improved type safety and robustness in js/plugins/google-genai and js/plugins/mcp by adding explicit null and type checks for properties and enhancing error messages.
• Dependency Lockfile Cleanup: Cleaned up pnpm-lock.yaml files by updating numerous dependencies, removing deprecated packages, and adding deprecation notices for others.

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Changelog

• js/ai/package.json
  • Updated typescript to 5.9.3.
  • Added handlebars dependency.
• js/ai/src/prompt.ts
  • Added Handlebars type import.
• js/core/package.json
  • Removed @opentelemetry/exporter-jaeger.
  • Updated typescript to 5.9.3.
• js/doc-snippets/package.json
  • Updated typescript to 5.9.3.
• js/genkit/package.json
  • Updated typescript to 5.9.3.
• js/package.json
  • Updated typedoc to 0.28.17.
  • Updated typedoc-github-theme to 0.4.0.
  • Updated typedoc-plugin-markdown to 4.10.0.
  • Updated typedoc-plugin-zod to 1.4.3.
  • Updated typescript to 5.9.3.
• js/plugins/anthropic/package.json
  • Updated typescript to 5.9.3.
• js/plugins/checks/package.json
  • Updated typescript to 5.9.3.
• js/plugins/chroma/package.json
  • Updated typescript to 5.9.3.
• js/plugins/cloud-sql-pg/package.json
  • Removed @types/dotenv.
  • Updated typescript to 5.9.3.
• js/plugins/compat-oai/package.json
  • Updated typescript to 5.9.3.
• js/plugins/dev-local-vectorstore/package.json
  • Updated typescript to 5.9.3.
• js/plugins/evaluators/package.json
  • Updated typescript to 5.9.3.
• js/plugins/express/package.json
  • Updated typescript to 5.9.3.
• js/plugins/fetch/package.json
  • Updated typescript to 5.9.3.
• js/plugins/firebase/package.json
  • Updated typescript to 5.9.3.
• js/plugins/google-cloud/package.json
  • Updated typescript to 5.9.3.
• js/plugins/google-genai/package.json
  • Updated typescript to 5.9.3.
• js/plugins/google-genai/src/common/converters.ts
  • Added a null check for property.properties before iteration.
• js/plugins/googleai/package.json
  • Updated typescript to 5.9.3.
• js/plugins/langchain/package.json
  • Updated typescript to 5.9.3.
• js/plugins/mcp/package.json
  • Updated typescript to 5.9.3.
• js/plugins/mcp/src/util/message.ts
  • Changed resource URI access from part.uri as string to part.resource.uri.
• js/plugins/mcp/src/util/resource.ts
  • Added explicit type checks for text and blob properties.
  • Improved error message for unknown part types.
• js/plugins/mcp/src/util/tools.ts
  • Added explicit type checks (p.type === 'text') in toText and processResult functions.
• js/plugins/next/package.json
  • Updated typescript to 5.9.3.
• js/plugins/next/pnpm-lock.yaml
  • Added overrides for cross-spawn and genkit.
  • Updated @types/node from 22.13.13 to 20.19.37.
  • Removed @types/react and @types/react-dom entries.
  • Updated next from 15.2.4 to 15.5.12.
  • Updated ts-jest to reflect typescript@5.9.3.
  • Updated tsup to reflect typescript@5.9.3.
  • Updated typescript from 5.8.2 to 5.9.3.
  • Updated @emnapi/runtime from 1.3.1 to 1.8.1.
  • Added @img/colour@1.1.0.
  • Updated various @img/sharp-* packages to 0.34.5 and 1.2.4 versions.
  • Removed @swc/counter.
  • Removed busboy.
  • Removed color-string and color.
  • Removed cross-spawn@6.0.6.
  • Removed csstype@3.1.3.
  • Updated detect-libc from 2.0.3 to 2.1.2.
  • Removed is-arrayish@0.3.2.
  • Removed nice-try.
  • Removed path-key@2.0.1.
  • Added semver@7.7.4.
  • Removed shebang-command@1.2.0 and shebang-regex@1.0.0.
  • Removed simple-swizzle.
  • Removed streamsearch.
  • Removed which@1.3.1.
• js/plugins/ollama/package.json
  • Updated typescript to 5.9.3.
• js/plugins/pinecone/package.json
  • Updated typescript to 5.9.3.
• js/plugins/vertexai/package.json
  • Updated typescript to 5.9.3.
• js/testapps/anthropic/package.json
  • Updated typescript to 5.9.3.
• js/testapps/basic-gemini/package.json
  • Updated typescript to 5.9.3.
• js/testapps/basic-gemini/src/index.ts
  • Updated imagen-image-generation flow to use imagen-4.0-generate-001 model.
• js/testapps/compat-oai/package.json
  • Updated typescript to 5.9.3.
• js/testapps/custom-evaluators/package.json
  • Updated typescript to 5.9.3.
• js/testapps/dev-ui-gallery/package.json
  • Updated typescript to 5.9.3.
• js/testapps/docs-menu-basic/package.json
  • Updated typescript to 5.9.3.
• js/testapps/docs-menu-rag/package.json
  • Updated typescript to 5.9.3.
• js/testapps/durable-streaming/package.json
  • Updated typescript to 5.9.3.
• js/testapps/esm/package.json
  • Updated typescript to 5.9.3.
• js/testapps/evals/package.json
  • Updated typescript to 5.9.3.
• js/testapps/express/package.json
  • Updated typescript to 5.9.3.
• js/testapps/firebase-functions-sample1/functions/package.json
  • Updated typescript to 5.9.3.
• js/testapps/flow-sample1/package.json
  • Updated typescript to 5.9.3.
• js/testapps/flow-simple-ai/package.json
  • Updated typescript to 5.9.3.
• js/testapps/flow-simple-ai/src/index.ts
  • Updated googleai-imagen flow to use imagen-4.0-generate-001 model.
• js/testapps/format-tester/package.json
  • Updated typescript to 5.9.3.
• js/testapps/hono/package.json
  • Updated typescript to 5.9.3.
• js/testapps/mcp/package.json
  • Updated typescript to 5.9.3.
• js/testapps/menu/package.json
  • Updated typescript to 5.9.3.
• js/testapps/model-armor/package.json
  • Updated typescript to 5.9.3.
• js/testapps/model-tester/package.json
  • Moved genkit to dependencies.
  • Updated genkitx-openai to 0.30.0.
  • Updated typescript to 5.9.3.
• js/testapps/multiagents-demo/package.json
  • Updated typescript to 5.9.3.
• js/testapps/multimodal/package.json
  • Removed vertexai link.
  • Updated typescript to 5.9.3.
• js/testapps/next/package.json
  • Updated @types/react to 19.2.7.
  • Updated typescript to 5.9.3.
• js/testapps/next/pnpm-lock.yaml
  • Added overrides for cross-spawn and genkit.
  • Updated @genkit-ai/googleai to @genkit-ai/google-genai.
  • Updated next from 15.2.4 to 15.5.12.
  • Updated @types/react from 19.0.12 to 19.2.7.
  • Updated typescript from 5.8.2 to 5.9.3.
  • Updated @emnapi/runtime from 1.3.1 to 1.8.1.
  • Added @img/colour@1.1.0.
  • Updated various @img/sharp-* packages to 0.34.5 and 1.2.4 versions.
  • Updated @next/env from 15.2.4 to 15.5.12.
  • Updated various @next/swc-* packages from 15.2.4 to 15.5.12.
  • Removed @swc/counter.
  • Updated @types/react to reflect csstype@3.2.3.
  • Removed busboy.
  • Removed color-string and color.
  • Updated csstype from 3.1.3 to 3.2.3.
  • Updated detect-libc from 2.0.3 to 2.1.2.
  • Removed is-arrayish@0.3.2.
  • Updated semver from 7.7.1 to 7.7.4.
  • Updated sharp from 0.33.5 to 0.34.5.
  • Removed simple-swizzle.
  • Removed streamsearch.
• js/testapps/ollama/package.json
  • Updated typescript to 5.9.3.
• js/testapps/prompt-file/package.json
  • Updated typescript to 5.9.3.
• js/testapps/rag/package.json
  • Updated typescript to 5.9.3.
• js/testapps/vertexai-modelgarden/package.json
  • Updated typescript to 5.9.3.
• js/testapps/vertexai-reranker/package.json
  • Updated typescript to 5.9.3.
• js/testapps/vertexai-vector-search-bigquery/package.json
  • Updated typescript to 5.9.3.
• js/testapps/vertexai-vector-search-custom/package.json
  • Updated typescript to 5.9.3.
• js/testapps/vertexai-vector-search-firestore/package.json
  • Updated typescript to 5.9.3.
• pnpm-lock.yaml
  • Added deprecation notice for glob@11.0.3.
• samples/js-gemini/src/index.ts
  • Updated imagen-image-generation flow to use imagen-4.0-generate-001 model.
• tests/pnpm-lock.yaml
  • Added deprecation notice for basic-ftp@5.0.5.
  • Added deprecation notice for fluent-ffmpeg@2.1.3.
  • Added deprecation notice for puppeteer@22.12.0.

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[gemini-code-assist]

Code Review

This pull request primarily focuses on updating TypeScript to version 5.9.3 and other dependencies across various packages. While reviewing the changes, I noticed that some dependencies in the updated lockfiles are marked as deprecated, with some having known security vulnerabilities. I've added comments on these specific dependencies with recommendations to update them. The rest of the code changes, which are compatibility fixes for the new TypeScript version, look good.