chore: migrate workspace to moon/proto node stack

[Hebilicious]

Summary

• migrate from deno-root layout to a Node + pnpm workspace layout
• move package logic under packages/cssforge and add moon v2 project/task configuration
• migrate package scripts into moon tasks and remove scripts blocks from repo package manifests
• keep JSR publishing support via moon tasks and update release automation
• add example projects and task wiring for e2e/dev flows

Verification

• ran CI-equivalent workflow locally:
  • proto install
  • proto run pnpm -- install --frozen-lockfile
  • moon run :format
  • moon run :test
  • moon run :typecheck
• additional publish path check:
  • moon run cssforge:jsr-dry-run

[changeset-bot]

🦋 Changeset detected

Latest commit: a472b6e

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

This PR includes changesets to release 1 package

Name	Type
@hebilicious/cssforge	Patch

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[Hebilicious]

Closing this PR because it was opened from the wrong branch. Superseded by #17 from .

[Hebilicious]

Superseded by #17, which is the same change on a branch based directly on main.