Release 1.3.0: add core skill registry and read_skill tool

Prepare 1.2.0 release notes and docs version

Update README.md

Update README.md

Clarify platform badges and dependency wording in README

Revise README features section

Add LLM retry and timeout handling to agent loop

Remove examples and update roadmap

Prepare 1.1.0 release notes and docs version

Refine architecture docs by removing loop interaction chart

Add MinimalAgentDemo and core AgentLoop/SkillLoader tests

Prepare 1.0.1 release notes and README roadmap

Fix Swift 6 concurrency capture in OAuth callback server

Add CI workflow and MIT license

Add README and SPI metadata for 1.0.0 release