Add one-click NovaSpine setup for existing OpenClaw installs

[maddwiz]

Summary

• Adds one-click NovaSpine setup for users with an existing OpenClaw install.
• Keeps the integration local at runtime and uses bundled NovaSpine assets instead of cloning a moving GitHub repo during setup.
• Refreshes the bundled NovaSpine package to 0.3.3 and updates the bundle for OpenClaw 2026.4.12.

What Changed

• Detects existing local OpenClaw installs and exposes NovaSpine setup in onboarding/settings.
• Installs the bundled novaspine-0.3.3 wheel during setup and uses vendored OpenClaw integration assets from vendor/novaspine-openclaw/0.3.3.
• Expands the supported OpenClaw versions in setup validation through 2026.4.12.
• Keeps the OpenClaw-side plugin snapshot aligned with the latest NovaSpine memory work in the bundle.
• Includes the latest NovaSpine fixes for FAISS ID dedupe, oversized-chunk backfill, model-scoped embedding cache behavior, safer Active Memory defaults, and stronger personal/current-state retrieval.

Validation

• npm run typecheck
• npm test -- --run tests/unit/novaspineRoute.test.ts tests/unit/novaspineSetupCard.test.ts

Notes

• This stays backend-first: Claw3D remains the UI/control layer while the existing OpenClaw runtime becomes NovaSpine-backed.
• The setup flow prefers the bundled wheel, so it does not require cloning maddwiz/NovaSpine during install.
• The branch now tracks the tagged NovaSpine v0.3.3 release instead of the older 0.3.2 bundle.