pre-release

What's Changed

• Go SDK — Project Scaffold & Core Types in #2
• Go SDK — FlagClient Core (Lifecycle, State & Subscriptions) in #8
• feat(transport): implement WebSocket + HTTP long-polling transport layer in #9
• Ticket 4: Go SDK — Cache Layer (Interface + In-Memory Default) in https://github.com/flagmint/flagmint-gol/pull/10
• feat(evaluate): local evaluation engine — Ticket 5 by @Copilot in https://github.com/flagmint/flagmint-gol/pull/11

Full Changelog: https://github.com/flagmint/flagmint-go/commits/v0.1.0