refactor: remove repokit dependency and replace with local utilities

[GuiBibeau]

Summary

Remove external repokit dependency and replace with local utility modules.

Changes

• Remove @beeman/repokit canary dependency from package.json
• Add 3 new utility modules: template-schema.ts, fetch-templates.ts, menu-utils.ts
• Update 10 source files to use local utilities instead of repokit imports
• Add changeset for patch version bump (4.7.0 -> 4.7.1)

Benefits

• No dependency on external canary releases
• Full control over template parsing logic
• Smaller bundle size (only code actually used)
• Type-safe with Zod validation
• Easier to maintain and debug

Testing

• All 73 tests pass
• Build succeeds (77.5 kB total dist size)
• Type checking passes
• Linting passes
• CLI verified working (--list-templates fetches all 26 templates)

Compatibility

• Maintains full backward compatibility with existing templates.json format
• Adds support for new optional metadata fields (displayName, usecase, image) from feat: remove repokit dependency and add template metadata enhancements templates#170

Future Plans

This refactor positions us well for migrating template metadata to a CMS and/or API in the future, which will enable more consumers to access template information and improve the overall template discovery experience.

[changeset-bot]

🦋 Changeset detected

Latest commit: d622a63

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	Patch

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[pkg-pr-new]

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npm i https://pkg.pr.new/solana-foundation/create-solana-dapp@212

commit: d622a63

[cxalem]

Looks good to me!!! 👀