opencode native 0.2.0

Added

• Sub-agents: a card for each launch (state lamp, agent, description, duration, model, tool calls, tokens, cost;
  unfolded: the session's facts, the prompt, the result in Markdown); the result line where it came back; drill down into
  a sub-agent and back (breadcrumb, Back, Alt+Left, the banner of its conversation); the running ones first and lit: their
  count in the header, a strip above the composer with what each does now, the finished ones dimmed and folded; the
  sidebar lists a session's sub-agents under it.
• Images: thumbnails of the images attached to prompts and of those tools hand back, a viewer; projects' logos in the
  sidebar, the title bar and the header. Decoded by the Rust library (PNG, JPEG, WebP, GIF, BMP) on worker threads.
• Settings (Ctrl+,): appearance (accent, text size, zoom, density, rounding, animations, glow), the conversation
  (column width, reasoning, tools unfolded, output lines, page size, following, usage, clock), the send key, sub-agents in
  the sidebar, notifications (a toast, the taskbar flashing); the server's pages: shell, MCP servers, usage and budgets,
  saved permissions, providers, models, agents, skills, commands, configuration files.
• Desktop integration: an icon and a version resource; Setup installs the copy for the user (Start menu shortcut with
  its AppUserModelID, a Settings > Apps entry, uninstall), --install, --uninstall, --status.
• HTTP over a Rust library (ureq, rustls with the system's trust store): https servers work.

Fixed

• A window being resized no longer shows its last frame stretched: the resize step is presented at once and the swap
  chain keeps the monitor's size (the toolkit's cadence model and fixed surface).
• Opening or closing a tool card keeps it under the pointer; the conversation stops following its bottom.
• The "+" of a folder of the sidebar could not be clicked (it vanished when the pointer reached it).

One executable for Windows 10 and 11 (x64): run it, or install it for your user from its Setup (title bar menu > Setup...). It finds the opencode desktop app's server by itself.