Release v0.3.8

What's Changed

Fixes

• Improved user feedback during manual application updates: shows categorized error dialogs (network, server, or generic), informs users when a check is blocked by an in-progress update, and respects the “remind later” preference to avoid silent downloads.

Documentation

• Added AGENTS.md to document agent-related functionality and usage.

Improvements

• Refactored connection implementation for better maintainability and consistency across database APIs (e.g., databases, tables, views, functions, materialized views).
• Refactored privilege management logic—including backend routes, driver-specific implementations (ClickHouse), and frontend privilege pages—to improve correctness, extensibility, and alignment with role/user scoping.
• Refactored connection registry and route handling to adopt a capabilities-based architecture, enabling cleaner driver abstraction and future database support.

Internal

• Updated flatted dependency from v3.3.4 to v3.4.1 (indirect dependency).