Avoid any in Cloudflare tunnel error handling

[alfonso-noriega]

WHY are these changes introduced?

The Cloudflare tunnel implementation used any for caught and callback errors, requiring lint suppressions and weakening type safety in production code.

WHAT is this pull request doing?

Types caught and callback errors as unknown, adds a small helper to extract an error message, removes explicit-any suppressions in the tunnel implementation, and fixes a typo in an error message.

How to test your changes?

pnpm nx run cli-kit:build --skip-nx-cache
pnpm --dir packages/plugin-cloudflare type-check
pnpm --dir packages/plugin-cloudflare lint
pnpm --dir packages/plugin-cloudflare vitest src/tunnel.test.ts

Checklist

• I've considered possible cross-platform impacts (Mac, Linux, Windows)
• I've considered possible documentation changes
• I've considered analytics changes to measure impact
• This change is not user-facing; no changeset is needed.

[alfonso-noriega]

• Avoid any in Cloudflare tunnel error handling #8089 👈 (View in Graphite)
• main

This stack of pull requests is managed by Graphite. Learn more about stacking.