v1.3.0

• Added automatic repository cloning for GitHub, GitLab, Bitbucket, and Azure DevOps.
• Added fail-closed Bearer-token authentication for AG-UI and OpenAI-compatible APIs.
• Added opt-in Slack attachment support for images, PDFs, and text files.
• Hardened Claude Code subagents with repository-scoped, read-only permissions and explicit model selection.
• Added scheduler tools for Claude Code and conversation-scoped schedule management.
• Hardened Email, Mattermost, and Telegram with explicit enablement, DKIM verification, HTTPS enforcement, and safer mention handling.
• Improved Slack top-level messaging, attachment downloads, and event diagnostics.
• Upgraded Pydantic AI, FastAPI, Claude SDK, default models, and Python 3.14 containers.
• Added typed-package markers and refreshed dependency automation and code-quality tooling.
• Overhauled configuration, integration, hook, quick-start, and platform documentation.
• Expanded tests for cloning, authentication, attachments, permissions, messaging, platforms, and scheduling.