Feat/services v2

[leonprou]

Summary by CodeRabbit

• New Features

  • Service Registry V2: ID-based lifecycle (draft/published/archived/deleted), on-chain/off-chain metadata, agent assignment/transfer, advanced discovery/filtering, multi-network support.

• Changes

  • SDK: full typed service CRUD (register/getById/update/delete/list), IPFS-backed metadata, optional signer pattern, comprehensive Zod schemas/validation, new service error types, expanded exports and types, updated tests.

• Removals

  • Task Registry and related deployment modules, scripts, tests, and proposal-related contract artifacts.

• Documentation

  • PRD and docs updated for Registry V2 and SDK changes.