ROOT CAUSE ANALYSIS
User reported: (a) TTS dropdown doesn't apply, (b) GUI feels stretched,
(c) no link to command builder, (d) Python doesn't even start.
Issues (a), (b), (c) addressed here. (d) addressed in python repo.
=== Fix A: TTS hot-swap (was completely broken) ===
Two distinct bugs:
1. `tts::init_backend()` only read JARVIS_TTS env var, NEVER consulted
`Settings.tts_backend` in the DB. So saving "Silero" in the GUI
dropdown changed nothing — not even on restart.
2. `BACKEND: OnceCell<...>` couldn't be replaced at runtime, so even
if init had picked the right backend, the dropdown was useless
mid-session.
Fixed:
- `tts::BACKEND` is now `Lazy<RwLock<Option<Arc<dyn TtsBackend>>>>`.
- `choose_backend_name()` resolves from DB → env → auto-detect.
- New `swap_to(name)` replaces the live backend atomically.
- IPC: new `IpcAction::SwitchTts { backend }`. jarvis-app reacts to
it the same way it reacts to SwitchLlm.
- GUI's `set_tts_backend` now persists + hot-swaps GUI's TTS + Svelte
page also fires `switchDaemonTts()` over WS so the running daemon
installs the new backend.
- Removed "Применится при следующем запуске" hint — now applies
immediately. RU + EN locale strings updated.
=== Fix B: GUI max-width ===
main + #header had no max-width, so on a 1920px monitor the labels
sprawled across 1860px of space, which felt stretched. Added
max-width: 1280px + margin: 0 auto + box-sizing: border-box. Smaller
windows are unaffected.
Also added the same cap on .app-container.assist-page so the home
screen arc reactor centres properly.
=== Fix C: Command builder discoverable ===
The Python fork ships a separate yaml-editing tool at
`python/tools/command_builder/` (pywebview GUI). No way to find it
from the main Rust GUI. Fixed:
- New tauri command `open_command_builder` (crates/jarvis-gui/src/
tauri_commands/builder.rs). Locates the Python fork via
$JARVIS_PYTHON_DIR → sibling python/ → C:\Jarvis\python, prefers
the project's .venv, spawns `python -m tools.command_builder`.
- New blue "Конструктор команд (Python)" button on /settings page
near the Save / Back buttons.
Tests: 140 rust + 104 python all pass. Release builds of jarvis-app
and jarvis-gui both green.
