feat: validate the positional name argument against the project name rules

[beeman]

Why

The positional CLI name argument flowed straight from input.args[0] into the generated package.json name and the init-script rename search key without ever passing through validateProjectName — only the interactive prompt path validated. So npx create-solana-dapp My_App bypassed validation entirely and produced an invalid npm package name and a degenerate rename search key.

What

• Run validateProjectName on the positional argument in getArgs when it is provided (the same rule as the interactive prompt, including the Directory already exists check) and throw with the validation message on failure, matching the existing log.error + throw pattern.
• Validation runs immediately after argument parsing, before fetchTemplateData, so a network failure can't mask the name-validation error. The informational --list-* commands skip it, since they only use the name to build a hint.
• Test coverage for both rejection paths (including asserting the template fetch is never reached) and for the list-command exemption, plus a minor changeset.

Notes

Stacked on #274 (targets beeman/project-name-schema); retarget to main or rebase once that merges.

[changeset-bot]

🦋 Changeset detected

Latest commit: 4c6f0a9

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
create-solana-dapp	Minor

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[pkg-pr-new]

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npm i https://pkg.pr.new/create-solana-dapp@276

commit: 4c6f0a9

[greptile-apps]

Greptile Summary

The PR validates positional project names before template retrieval while exempting informational list commands.

• Applies the existing project-name validator to positional input.
• Ensures invalid names fail before template data is fetched.
• Adds rejection and informational-command regression coverage.
• Adds a minor release changeset.

Confidence Score: 5/5

The PR appears safe to merge.

No blocking failure remains; the previously reported validation-order and informational-command issues are fixed, and the author reports that the head commit is signed and verified.

Important Files Changed

Filename	Overview
src/utils/get-args.ts	Positional-name validation now precedes remote template retrieval, and all three informational list commands bypass it as intended.
test/get-args.test.ts	Adds coverage for invalid names, existing directories, pre-fetch rejection, and the informational-command exemption.
.changeset/validate-positional-name.md	Records the positional-name validation behavior as a minor package change.

_{Reviews (5): Last reviewed commit: "feat: validate the positional name argum..." | Re-trigger Greptile}

[beeman]

@greptileai review

[beeman]

@greptileai review