SGP-16: Accept Ownership Transfer of SEI Contracts to Spectra DAO

### Summary This proposal seeks to transfer ownership of Spectra’s deployed contracts on SEI from Perspective SAS to Spectra DAO. This marks the protocol’s formal expansion to SEI, aligned with Spectra’s multi-chain expansion strategy. ### Context & Motivation SEI is positioning itself as a high-performance DeFi-focused chain, with an emphasis on low latency and high throughput. Deploying Spectra on SEI allows the protocol to expand into an emerging ecosystem at an early stage, where new...