chore: CI workflows + drop Ukrainian (UA → just RU/EN)

CI (.github/workflows/ci.yml):
- Three parallel jobs on push & PR: cargo test (jarvis-core), cargo
  clippy (lint, warnings-as-errors), cargo check (workspace). Windows
  runner, stable toolchain, rust-cache for fast incremental builds.
- Deliberately skips release build of jarvis-gui — that needs Node+npm
  +Tauri bundler and would balloon CI to ~10min per push.

Drop Ukrainian:
- Delete ua.ftl, remove UA from SUPPORTED_LANGUAGES.
- config.rs: prune UA arms from get_wake_phrases / get_wake_grammar /
  get_phrases_to_remove / get_llm_trigger_phrases / get_llm_system_prompt.
- stt/vosk.rs: drop UA → uk language mapping.
- tray menu: drop "Українська" entry.
- frontend: drop UA from Header.svelte language list, settings page
  language map, i18n.ts fallback.
- 82 command.toml files stripped of every `ua = [...]` block (205
  blocks total). Handled via subagent — TOML still parses, all 6 command
  tests pass.

.gitignore: stop tracking dev.env / dll_probe*.py / imports_full.txt
which were sitting in working tree.

Tests: 128 pass (no regression). Workspace still compiles end-to-end.

resources/commands/power/command.toml

@@ -8,7 +8,6 @@ timeout = 5000
 [commands.phrases]
 ru = ["выключи компьютер", "выключи пк", "выключи комп"]
 en = ["shutdown pc", "shut down computer"]
-ua = ["вимкни комп'ютер", "вимкни пк"]
 
 
 [[commands]]
@@ -21,7 +20,6 @@ timeout = 5000
 [commands.phrases]
 ru = ["перезагрузи компьютер", "перезагрузи пк", "ребутни", "ребут"]
 en = ["restart pc", "reboot computer"]
-ua = ["перезавантаж комп'ютер"]
 
 
 [[commands]]
@@ -34,7 +32,6 @@ timeout = 5000
 [commands.phrases]
 ru = ["усыпи компьютер", "усыпи пк", "режим сна", "перейди в сон"]
 en = ["sleep pc", "put computer to sleep"]
-ua = ["приспи комп'ютер"]
 
 
 [[commands]]
@@ -47,7 +44,6 @@ timeout = 5000
 [commands.phrases]
 ru = ["гибернация", "переведи в гибернацию", "режим гибернации"]
 en = ["hibernate pc"]
-ua = ["гібернація"]
 
 
 [[commands]]
@@ -60,7 +56,6 @@ timeout = 5000
 [commands.phrases]
 ru = ["выйди из системы", "разлогинь", "выйди из учётки", "сеанс закончи"]
 en = ["log off", "sign out"]
-ua = ["вийди з системи"]
 
 
 [[commands]]
@@ -73,4 +68,3 @@ timeout = 3000
 [commands.phrases]
 ru = ["отмени выключение", "отмени ребут", "отмени перезагрузку", "стой не выключай"]
 en = ["cancel shutdown", "abort shutdown"]
-ua = ["скасуй вимкнення"]