Adds a two-step new thread modal: step one picks mode, step two
configures aspect ratio (Art mode only, six options) and resolution
(all modes: 1K/2K/4K). Settings are stored on the thread and forwarded
to the Gemini API on every send, retry, and edit. Also regenerates
icon.ico with Python to produce a clean all-BMP ICO compatible with
both Tauri's proc macro and llvm-rc cross-compilation.
## Summary
The Windows build job has been failing on every PR since the initial release. The root cause is that the default `clang`/`lld`/`llvm` apt packages resolve to an older version of `llvm-rc` that cannot handle PNG-compressed entries in `.ico` files — and all six images in `icon.ico` use PNG compression.
Pinning to `clang-18`, `lld-18`, and `llvm-18` (available in Ubuntu 24.04's default repos) and registering them via `update-alternatives` ensures `llvm-rc`, `clang-cl`, `lld-link`, and friends all resolve to a version that handles the icon resource correctly.
✨ This PR was created with help from Hikari~ 🌸
Reviewed-on: #17
Co-authored-by: Hikari <hikari@nhcarrigan.com>
Co-committed-by: Hikari <hikari@nhcarrigan.com>
Tatsumi is a Tauri desktop app for generating AI character art of Naomi
using Google Gemini's image model. Features three generation modes
(avatar, art, replace), persistent conversation threads, message
editing and deletion, retry support, cost tracking, and an about modal
with lore-accurate self-introduction from Emi Carrigan.
hikari
