feat(scripts): add pnpm release for local end-to-end publish

Wraps the changesets flow into one command: preflight (branch/clean/up-to-date),
apply changesets (version bump + CHANGELOG), build, commit, publish to npm, push
tag. The tag push triggers release.yml for platform binary builds.

Trade-off vs the version.yml CI workflow: no npm provenance (OIDC is CI-only).
Use the CI workflow when provenance matters.

Flags: --dry-run (no publish/push), --yes (skip confirmation).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

package.json

@@ -33,6 +33,7 @@
     "typecheck": "pnpm -r typecheck",
     "changeset": "changeset",
     "version": "changeset version",
+    "release": "node scripts/release.mjs",
     "release:version": "changeset version",
     "mobile:build": "pnpm --filter @fusion/dashboard build && pnpm --filter @fusion/mobile cap sync",
     "mobile:ios": "pnpm mobile:build && pnpm --filter @fusion/mobile cap open ios",