v0.1.2

Changed

• Root README.md rewritten as contributor/repo guide (structure, dev setup, scripts, release process)
• projects/ngx-mfe-broker/README.md is now consumer-facing docs published to npm (replaces Angular CLI scaffold placeholder)
• Corrected "No echo loops" description to reflect value-based inbound guard (no microtask) introduced in 0.1.1
• Added NGX_MFE_INITIAL_STATE injection token to the API reference
• Added npx vitest run to the building/scripts section