feat(commands): analog-inspired tier-2 — news, currency, crypto, fun, wiki, power, help (33 packs)

Seven more portable Lua packs lifted from common voice-assistant
playbooks (Siri/Alexa/Алиса/Cortana). All sandbox=full, jarvis.http
+ jarvis.system.exec, zero new Rust code. cargo test still 3/3.

news/ — pulls Lenta.ru RSS (en switches to BBC), regex-extracts the
top 5 <title> entries (skipping the channel header), drops them into
the clipboard, then asks Groq for a 2-3 sentence summary at temp 0.4
and speaks it via SAPI. If GROQ_TOKEN is missing it falls back to
just reading the first three headlines.

currency/ — cbr-xml-daily.ru/daily_json.js. Picks USD/EUR/CNY/GBP/
JPY/KZT by keyword in the phrase, computes value / nominal, diffs
against Valute.Previous, says "X стоит N рублей, поднялся/опустился
на M" with ▲/▼ in the notify body.

crypto/ — CoinGecko simple/price with usd,rub and 24hr_change.
Recognises bitcoin / ethereum / solana / dogecoin / the-open-network.
Reports price + direction in plain Russian.

fun/ — joke / fact / quote / compliment, single ask.lua dispatched by
command_id. Per-command system prompt at temp 1.0; seeds with a
random integer so consecutive calls don't repeat.

wiki/ — ru.wikipedia opensearch → REST summary endpoint. If Groq is
available and extract > 350 chars, asks for a 2-3 sentence retell;
otherwise speaks the first 400 chars verbatim. Full extract goes to
clipboard.

power/ — shutdown_pc / restart_pc / sleep_pc / hibernate_pc /
logoff_user / cancel_shutdown. Single act.lua keyed by command_id.
shutdown/restart use shutdown.exe /s|/r /t 30 with a /c message —
30-second grace window so "отмени выключение" actually works.
sleep uses rundll32 powrprof,SetSuspendState, hibernate uses
shutdown.exe /h.

help/ — "что ты умеешь". Reads the parent commands/ dir via
jarvis.fs.list, sorts subdirs (pack names), pairs each with a
hardcoded Russian/English one-liner description, copies the full
list to clipboard and speaks a count + "see clipboard for full list".

Total command packs is now 33 (was 26).

resources/commands/fun/ask.lua

@@ -0,0 +1,70 @@
+local lang = jarvis.context.language
+local cmd_id = jarvis.context.command_id
+
+local prompts = {
+    joke = lang == "ru"
+        and "Расскажи одну короткую шутку на русском, 1-3 предложения. Без вступления и без 'вот шутка'. Просто шутка."
+        or  "Tell one short joke in 1-3 sentences. No preamble.",
+    fact = lang == "ru"
+        and "Расскажи один интересный, неочевидный факт по любой теме. 1-3 предложения. Без 'вот факт'."
+        or  "Tell one surprising fact in 1-3 sentences. No preamble.",
+    quote = lang == "ru"
+        and "Дай вдохновляющую цитату известного человека и автора. Без 'вот цитата'. Формат: <цитата> — <автор>."
+        or  "Give one inspiring quote with author. Format: <quote> — <author>.",
+    compliment = lang == "ru"
+        and "Сделай искренний короткий комплимент пользователю, как британский дворецкий Джарвис. 1-2 предложения, обращение «сэр»."
+        or  "Compliment the user briefly, in JARVIS-the-butler tone.",
+}
+
+local sys = prompts[cmd_id] or prompts.joke
+
+local token = jarvis.system.env("GROQ_TOKEN")
+if not token or token == "" then
+    jarvis.system.notify("Fun", "GROQ_TOKEN не задан")
+    jarvis.audio.play_error()
+    return { chain = false }
+end
+
+local base  = jarvis.system.env("GROQ_BASE_URL"); if not base or base == "" then base = "https://api.groq.com/openai/v1" end
+local model = jarvis.system.env("GROQ_MODEL");    if not model or model == "" then model = "llama-3.3-70b-versatile" end
+
+math.randomseed(os.time() + jarvis.context.time.second * 7919)
+local seed_word = (math.random(1, 9999)) .. ""
+
+local payload = {
+    model = model,
+    messages = {
+        { role = "system", content = sys },
+        { role = "user",   content = "seed " .. seed_word },
+    },
+    max_tokens = 220,
+    temperature = 1.0,
+}
+local res = jarvis.http.post_json(base .. "/chat/completions", payload, { Authorization = "Bearer " .. token })
+
+if not res.ok then
+    jarvis.system.notify("Fun", "Groq не ответил")
+    jarvis.audio.play_error()
+    return { chain = false }
+end
+
+local content = (res.body or ""):match('"content"%s*:%s*"(.-[^\\])"')
+if not content then
+    jarvis.audio.play_error()
+    return { chain = false }
+end
+content = content:gsub('\\n', ' '):gsub('\\"', '"'):gsub('\\\\', '\\'):gsub("%s+", " ")
+content = content:gsub("^%s+", ""):gsub("%s+$", "")
+
+local titles = { joke = "Анекдот", fact = "Факт", quote = "Цитата", compliment = "Комплимент" }
+jarvis.system.notify(titles[cmd_id] or "Fun", content:sub(1, 240))
+
+local sapi = content:gsub("'", "''"):gsub("\r?\n", " ")
+local ps = string.format(
+    [[Add-Type -AssemblyName System.Speech; $s = New-Object System.Speech.Synthesis.SpeechSynthesizer; foreach ($v in $s.GetInstalledVoices()) { if ($v.VoiceInfo.Culture.TwoLetterISOLanguageName -eq 'ru') { try { $s.SelectVoice($v.VoiceInfo.Name); break } catch {} } } $s.Speak('%s')]],
+    sapi
+)
+jarvis.system.exec(string.format('powershell -NoProfile -Command "%s"', ps:gsub('"', '\\"')))
+
+jarvis.audio.play_ok()
+return { chain = false }