feat(commands): tier-1 PC tools — window mgmt, clipboard, notes, process killer, web search

Five new portable Lua command packs. Bumps the total from 11 to 16 packs.
All sandbox=full, all dispatched via jarvis.system.exec or jarvis.fs / jarvis.system
APIs, no new Rust code, post_build.py --sync copies them under target/.
cargo test -p jarvis-core --lib commands::tests passes 3/3 against all 16.

window/ — 8 commands, single dispatch.lua keyed by jarvis.context.command_id:
  show_desktop / maximize_window / minimize_window / snap_left / snap_right
  / close_window / restore_all / task_view. _window_helper.ps1 P/Invokes
  user32!keybd_event for arbitrary combos like "win+d", "alt+f4",
  "win+shift+m". Uses one shared script per pack — much less duplication
  than the volume/ approach.

clipboard_read/ — read_clipboard. Pulls jarvis.system.clipboard.get(),
caps preview at 400 chars, then shells PowerShell System.Speech to actually
speak it aloud (auto-picks the first ru-RU voice if present). Also fires a
notify with a 120-char snippet.

notes/ — add_note + open_notes. add_note strips the trigger phrase from
the recognized voice, appends "[YYYY-MM-DD HH:MM] body\n" to
%USERPROFILE%\Documents\jarvis-notes.txt via jarvis.fs.append (creates
the file on first call). open_notes opens the file in the default editor
via jarvis.system.open. Trigger list covers RU/EN/UA variants of
"запиши" / "запомни" / "write down" / etc.

process_kill/ — kill_process. Trigger-strips "закрой программу" / "убей
процесс" / etc., then runs the remainder through an alias map (хром→
chrome, телега→telegram, спотифай→spotify, edge/edge/едж→msedge etc.,
20+ entries) before invoking taskkill /F /IM. Notifies success/not-found.

websearch/ — search_google / search_youtube / search_wiki / search_yandex.
Single dispatch.lua reads jarvis.context.command_id to pick the base URL,
URL-encodes the query (Lua %02X gsub, not relying on jarvis.http), opens
the resulting link via jarvis.system.open (system default browser).

Portability check: every helper resolves paths via $env:USERPROFILE /
jarvis.context.command_path / jarvis.system.env — no hardcoded C:\ refs.

resources/commands/process_kill/kill.lua

@@ -0,0 +1,68 @@
+local lang = jarvis.context.language
+local phrase = (jarvis.context.phrase or ""):lower()
+
+local triggers = {
+    "завершить процесс", "выруби процесс", "убей процесс", "kill процесс",
+    "закрой программу",
+    "kill process", "close program", "terminate process",
+    "вбий процес", "закрий програму", "заверши процес",
+}
+
+local name = phrase
+for _, t in ipairs(triggers) do
+    local s, e = string.find(name, t, 1, true)
+    if s == 1 then
+        name = name:sub(e + 1)
+        break
+    end
+end
+name = name:gsub("^%s+", ""):gsub("%s+$", "")
+
+local aliases = {
+    ["хром"] = "chrome", ["хрома"] = "chrome",
+    ["спотифай"] = "spotify",
+    ["едж"] = "msedge", ["эдж"] = "msedge", ["edge"] = "msedge",
+    ["файрфокс"] = "firefox", ["фаерфокс"] = "firefox",
+    ["вскод"] = "code", ["vs code"] = "code",
+    ["дискорд"] = "discord",
+    ["телега"] = "telegram", ["телеграм"] = "telegram",
+    ["стим"] = "steam",
+    ["обс"] = "obs64",
+    ["проводник"] = "explorer",
+    ["блокнот"] = "notepad",
+    ["калькулятор"] = "calculatorapp",
+    ["диспетчер задач"] = "taskmgr",
+}
+local target = aliases[name] or name
+
+if target == "" then
+    jarvis.system.notify(
+        lang == "ru" and "Kill" or "Kill",
+        lang == "ru" and "Какой процесс?" or "Which process?"
+    )
+    jarvis.audio.play_error()
+    return { chain = false }
+end
+
+local exe = target:match("%.exe$") and target or (target .. ".exe")
+
+local cmd = string.format('taskkill /F /IM "%s"', exe)
+local res = jarvis.system.exec(cmd)
+
+if res.success then
+    jarvis.log("info", "killed: " .. exe)
+    jarvis.system.notify(
+        lang == "ru" and "Завершён" or "Killed",
+        exe
+    )
+    jarvis.audio.play_ok()
+else
+    jarvis.log("warn", "taskkill failed for " .. exe .. ": " .. tostring(res.stderr))
+    jarvis.system.notify(
+        lang == "ru" and "Не нашёл процесс" or "Process not found",
+        exe
+    )
+    jarvis.audio.play_not_found()
+end
+
+return { chain = false }