fix: restore reproducible workspace install

[darkhitter007]

Problem

A fresh checkout could not complete npm ci --ignore-scripts because the checked-in package lock was inconsistent with the current workspace/package manifests.

Change

This regenerates package-lock.json from the current manifests.

The resulting lock:

• records the root workspace dependencies
• resolves the root Zod 4 dependency
• preserves package-local Zod 3 development resolution where required
• removes the stale packages/editor entry, which no longer exists in the tree

Verification

• npm ci --ignore-scripts passes
• npm run build --workspace=@jam-nodes/core passes
• only package-lock.json is changed

Scope

No runtime behavior or authority semantics are intentionally changed.
This PR is limited to restoring fresh-install reproducibility.