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/apps/command.toml

@@ -23,13 +23,6 @@ en = [
     "start browser",
     "i need browser",
 ]
-ua = [
-    "відкрий браузер",
-    "запусти браузер",
-    "відкрий хром",
-    "запусти хром",
-    "увімкни браузер",
-]
 
 
 [[commands]]
@@ -49,10 +42,6 @@ en = [
     "open notepad",
     "launch notepad",
 ]
-ua = [
-    "відкрий блокнот",
-    "запусти блокнот",
-]
 
 
 [[commands]]
@@ -73,10 +62,6 @@ en = [
     "launch calculator",
     "calculator please",
 ]
-ua = [
-    "відкрий калькулятор",
-    "запусти калькулятор",
-]
 
 
 [[commands]]
@@ -99,10 +84,6 @@ en = [
     "open files",
     "open folder",
 ]
-ua = [
-    "відкрий провідник",
-    "відкрий папку",
-]
 
 
 [[commands]]
@@ -126,10 +107,6 @@ en = [
     "open console",
     "launch terminal",
 ]
-ua = [
-    "відкрий термінал",
-    "відкрий консоль",
-]
 
 
 [[commands]]
@@ -151,10 +128,6 @@ en = [
     "launch settings",
     "windows settings",
 ]
-ua = [
-    "відкрий налаштування",
-    "відкрий параметри",
-]
 
 
 [[commands]]
@@ -175,10 +148,6 @@ en = [
     "launch task manager",
     "task manager",
 ]
-ua = [
-    "відкрий диспетчер задач",
-    "диспетчер задач",
-]
 
 
 [[commands]]
@@ -200,10 +169,6 @@ en = [
     "lock the computer",
     "lock pc",
 ]
-ua = [
-    "заблокуй комп'ютер",
-    "заблокуй екран",
-]
 
 
 [[commands]]
@@ -224,7 +189,3 @@ en = [
     "screenshot",
     "capture screen",
 ]
-ua = [
-    "зроби скріншот",
-    "знімок екрана",
-]