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/news/command.toml

@@ -0,0 +1,27 @@
+[[commands]]
+id = "news_headlines"
+type = "lua"
+script = "news.lua"
+sandbox = "full"
+timeout = 25000
+
+[commands.phrases]
+ru = [
+    "что нового",
+    "новости",
+    "что в мире",
+    "последние новости",
+    "расскажи новости",
+    "топ новостей",
+]
+en = [
+    "what's new",
+    "latest news",
+    "headlines",
+    "top news",
+]
+ua = [
+    "що нового",
+    "новини",
+    "останні новини",
+]

resources/commands/news/news.lua

@@ -0,0 +1,82 @@
+local lang = jarvis.context.language
+
+local feed = lang == "en"
+    and "https://feeds.bbci.co.uk/news/rss.xml"
+    or  "https://lenta.ru/rss/news"
+
+local res = jarvis.http.get(feed)
+if not res.ok then
+    jarvis.system.notify("News", "Не получил RSS: " .. tostring(res.status))
+    jarvis.audio.play_error()
+    return { chain = false }
+end
+
+local titles = {}
+for title in res.body:gmatch("<title>%s*<!%[CDATA%[(.-)%]%]>%s*</title>") do
+    if title ~= "" and title:lower():find("rss") == nil and title:lower():find("новости") ~= 1 then
+        table.insert(titles, title)
+    end
+    if #titles >= 7 then break end
+end
+if #titles == 0 then
+    for title in res.body:gmatch("<title>%s*(.-)%s*</title>") do
+        if title ~= "" then
+            table.insert(titles, title)
+        end
+        if #titles >= 7 then break end
+    end
+end
+
+if #titles <= 1 then
+    jarvis.system.notify("News", lang == "ru" and "Не получилось распарсить" or "Could not parse feed")
+    jarvis.audio.play_error()
+    return { chain = false }
+end
+
+local top = {}
+for i = 2, math.min(6, #titles) do table.insert(top, titles[i]) end
+local joined = table.concat(top, " | ")
+
+jarvis.system.clipboard.set(joined)
+jarvis.system.notify(lang == "ru" and "Новости" or "News", joined:sub(1, 280))
+
+local token = jarvis.system.env("GROQ_TOKEN")
+local say_text
+if token and token ~= "" then
+    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
+    local sys = lang == "ru"
+        and "Ты диктор. Дам список заголовков новостей. Сжато перескажи 3 главные темы простым языком, 2-3 предложения суммарно. Не упоминай номера и не повторяй заголовки дословно."
+        or  "You are a news anchor. Summarise the top 3 headlines in 2-3 sentences. No numbering, no verbatim repeats."
+    local payload = {
+        model = model,
+        messages = {
+            { role = "system", content = sys },
+            { role = "user",   content = joined },
+        },
+        max_tokens = 220,
+        temperature = 0.4,
+    }
+    local lr = jarvis.http.post_json(base .. "/chat/completions", payload, { Authorization = "Bearer " .. token })
+    if lr.ok then
+        local c = (lr.body or ""):match('"content"%s*:%s*"(.-[^\\])"')
+        if c then
+            c = c:gsub('\\n', ' '):gsub('\\"', '"'):gsub('\\\\', '\\')
+            say_text = c
+        end
+    end
+end
+
+if not say_text then
+    say_text = (lang == "ru" and "Главные новости: " or "Top news: ") .. (top[1] or "") .. ". " .. (top[2] or "") .. ". " .. (top[3] or "")
+end
+
+local sapi = say_text: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 }