#29 Plugin system:
- New jarvis-core::plugins module: discovers user packs in
%APPDATA%\com.priler.jarvis\plugins\<name>\command.toml so authors can
ship voice commands without rebuilding. Sandbox capped at "standard" —
plugins cannot escalate to "full" (which would expose `os`). Disabled
via a `disabled` flag file. Malformed packs warn and skip; never poison
the rest of the list. 8 unit tests.
- commands::parse_commands() merges plugins into the loaded list.
- New /plugins GUI page with enable/disable switches, error reporting,
"Open folder" button. Tauri commands plugins_list / plugins_set_enabled
/ plugins_open_folder. Header gets a "Плагины" button. i18n keys added
for ru/en/ua.
#8 Custom wake-word trainer wizard:
- New jarvis-core::wake_trainer module: opens its own pv_recorder
instance, records N short PCM clips, WAV-encodes them in memory, then
calls rustpotter's WakewordRef::new_from_sample_buffers to train and
persist a .rpw model under %APPDATA%/com.priler.jarvis/wake_words/.
Keepsake WAVs are also dumped for retraining later. Sanitises names to
block path traversal. 5 unit tests.
- Settings gain `custom_wake_word: String`; listener/rustpotter.rs now
loads the user's selected model first and always falls back to the
bundled default so the assistant keeps working even if the custom
file is missing.
- New /wake-trainer GUI page: stepper UI for record-sample → train,
shows recorded count, threshold slider, refuses to start while
jarvis-app is running (mic exclusivity). Lists existing trained
models with size + delete button.
- 8 Tauri commands wired through (status/defaults/start/record_sample/
finish/cancel/list_models/delete_model).
Tests: 115 → 128 (+8 plugins +5 wake_trainer). Release builds green for
all three binaries (jarvis-app / jarvis-cli / jarvis-gui).
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