/iblai-vibe-agent-skills

Add the agent Skills tab -- reusable playbooks a Base Agent can discover and follow. An Agent Skill is a written instruction bundle (plus optional reference files) for one job, like researching a topic on the web or reviewing code. The agent reads a skill only when it's relevant, so an agent can carry many capabilities without bloating every conversation. The surface has two tabs — Agent Skills (the agent's own set, with enable/disable toggles) and Available Skills (the tenant catalog, with one-click "Add to Agent") — plus New/Edit skill dialogs (with a Resources file manager) and the chat / skill picker that lets users invoke a skill from the composer.

Skills are managed independently of the Claw sandbox — no sandbox instance is required. (They were previously documented as a section of /iblai-vibe-agent-sandbox.)