Swift native macOS coding agent

Key features

• DeepTide is an agentic coding assistant — the model plans, calls tools, observes results, and adapts.
• deeptide — the current TypeScript/Bun CLI (forwards to @paean-ai/zero-cli)
• Same config — reads the identical /.config/tide/settings.json (and project .deeptide/settings.json)
• tide-spec — shared interface contract: tool catalog, slash commands, CLI flags, hook env vars, model aliases.
• Multi-turn agentic loop — plan → tool → observe → adapt