v0.4.0 — LLM Connections, Codex Support, Workspace Defaults

Multi‑connection AI setup, Codex/OpenAI support, per‑workspace defaults, and documentation upgrades.

🔌 LLM Connections (Multiple Providers)

Craft Agents now supports multiple LLM connections:

• Add multiple providers (Anthropic, OpenRouter, Codex/OpenAI, etc.)
• Validate and manage each connection independently
• Sessions lock to a connection after the first message

🤖 Codex / OpenAI Support

Connect OpenAI via Codex using OAuth and run Codex‑powered sessions alongside Anthropic connections.

🧭 Default Connection per Workspace

Workspaces can now set their own default LLM connection, overriding the global default for new sessions in that workspace.

🎨 Workspace‑Specific Default Themes

Each workspace can set a default theme via defaults.colorTheme, making it easy to visually distinguish contexts.

📚 Documentation Updates

New and updated docs covering:

• LLM Connections (new reference page)
• Codex/OpenAI configuration
• Multiple connections + session locking
• Per‑workspace default connection + theme