Update MCP prompts to fallback to npx firebase-tools if firebase isn't installed

[samedson]

In case the user doesn't have the firebase CLI downloaded, we want to suggest them a command that will succeed on their machine. The reason we can't just use firebase is some users may have run the MCP server via npx, and don't have firebase installed globally. In the future, we'd like to detect how you ran the MCP server, and use that so that the CLI doesn't run commands that results in an install.

[gemini-code-assist]

Summary of Changes

Hello @samedson, 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 refines the internal prompts for Firebase operations by switching from direct firebase command invocations to npx firebase@latest. This adjustment addresses scenarios where the Firebase CLI might not be globally installed on a user's system, providing a more resilient and accessible way to execute commands like login and deploy by temporarily fetching and running the latest CLI version.

Highlights

• Firebase CLI Command Execution: All Firebase CLI commands within the mcp prompts have been updated to use npx firebase@latest instead of a direct firebase call.
• Improved User Experience: This change ensures that users can execute Firebase commands even if the Firebase CLI is not globally installed, by leveraging npx to run the latest version of the CLI.

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[gemini-code-assist]

Code Review

This pull request updates the MCP prompts to use npx firebase@latest instead of just firebase. This is a great improvement as it allows users to run firebase commands without having the firebase-tools CLI globally installed. The changes are applied consistently across the deploy and crashlytics prompts. My feedback focuses on improving stability by pinning to a major version of the Firebase CLI instead of using @latest, to prevent unexpected breaking changes. The PR also includes several beneficial whitespace cleanups.

[joehan]

I like what we're going here, but I think we can just do it all in one fell swoop. #9265 adds a cached call to check if 'firebase' is installed, and falls back to npx only if it is not installed.

[samedson]

Sweet just approved the other one @joehan

[schnecle]

Looks good for the Crashlytics prompt! 👍

[samedson]

Ok I'm getting Error: spawnSync firebase --version ENOENT

I think it's due to weirdness in my path. Either way, this is a good change to merge.