fix: map remote template git params

[cursor]

Description

Fixes v0 remote template get/create/update requests so public snake_case Git params are translated into the Harness API query params. Remote template updates now send branch, repository details, file path, commit metadata, Harness Code flags, and update conflict IDs instead of dropping them before client.request().

Adds focused Registry.dispatch() request-shape tests for v0 template remote get, create, and update.

Type of Change

• Bug fix
• New feature
• Refactor
• Documentation
• Other

Checklist

• Tests pass
• Typecheck passes

Verification: pnpm build, pnpm docs:generate, pnpm docs:check, pnpm typecheck, pnpm exec vitest run tests/registry/templates.test.ts, pnpm test, git diff --check.

  

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