feat: convert to argument.es — Spanish, vote buttons, Docker

- Translate all ~430 prompts to Spanish with cultural adaptations
- Translate all UI strings (frontend, admin, history, broadcast)
- Translate AI system prompts; models now respond in Spanish
- Replace Twitch/Fossabot viewer voting with in-site vote buttons
- Add POST /api/vote endpoint (IP-based, supports vote switching)
- Vote buttons appear during voting phase with active state highlight
- Rename project to argument.es throughout (package.json, cookie, DB)
- Add docker-compose.yml with SQLite volume mount
- Add .env.sample documenting all required and optional vars

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

admin.tsx

@@ -192,7 +192,7 @@ function App() {
   if (mode === "checking") {
     return (
       <div className="admin admin--centered">
-        <div className="loading">Checking admin session...</div>
+        <div className="loading">Comprobando sesión de administrador...</div>
       </div>
     );
   }
@@ -202,12 +202,12 @@ function App() {
       <div className="admin admin--centered">
         <main className="panel panel--login">
           <a href="/" className="logo-link">
-            <img src="/assets/logo.svg" alt="quipslop" />
+            <img src="/assets/logo.svg" alt="argument.es" />
           </a>
-          <h1>Admin Access</h1>
+          <h1>Acceso de administrador</h1>
           <p className="muted">
-            Enter your passcode once. A secure cookie will keep this browser
-            logged in.
+            Introduce tu contraseña una vez. Una cookie segura mantendrá
+            esta sesión activa en el navegador.
           </p>
 
           <form
@@ -218,7 +218,7 @@ function App() {
             data-lpignore="true"
           >
             <label htmlFor="passcode" className="field-label">
-              Passcode
+              Contraseña
             </label>
             <input
               id="passcode"
@@ -239,15 +239,15 @@ function App() {
               data-1p-ignore
               data-lpignore="true"
             >
-              {pending === "login" ? "Checking..." : "Unlock Admin"}
+              {pending === "login" ? "Comprobando..." : "Desbloquear Admin"}
             </button>
           </form>
 
           {error && <div className="error-banner">{error}</div>}
 
           <div className="quick-links">
-            <a href="/">Live Game</a>
-            <a href="/history">History</a>
+            <a href="/">Juego en vivo</a>
+            <a href="/history">Historial</a>
           </div>
         </main>
       </div>
@@ -258,23 +258,23 @@ function App() {
     <div className="admin">
       <header className="admin-header">
         <a href="/" className="logo-link">
-          quipslop
+          argument.es
         </a>
         <nav className="quick-links">
-          <a href="/">Live Game</a>
-          <a href="/history">History</a>
+          <a href="/">Juego en vivo</a>
+          <a href="/history">Historial</a>
           <button className="link-button" onClick={onLogout} disabled={busy}>
-            Logout
+            Cerrar sesión
           </button>
         </nav>
       </header>
 
       <main className="panel panel--main">
         <div className="panel-head">
-          <h1>Admin Console</h1>
+          <h1>Consola de administrador</h1>
           <p>
-            Pause/resume the game loop, export all data as JSON, or wipe all
-            stored data.
+            Pausa/reanuda el bucle del juego, exporta todos los datos en JSON
+            o borra todos los datos almacenados.
           </p>
         </div>
 
@@ -282,18 +282,18 @@ function App() {
 
         <section className="status-grid" aria-live="polite">
           <StatusCard
-            label="Engine"
-            value={snapshot?.isPaused ? "Paused" : "Running"}
+            label="Motor"
+            value={snapshot?.isPaused ? "En pausa" : "Ejecutándose"}
           />
           <StatusCard
-            label="Active Round"
-            value={snapshot?.isRunningRound ? "In Progress" : "Idle"}
+            label="Ronda activa"
+            value={snapshot?.isRunningRound ? "En curso" : "Inactivo"}
           />
           <StatusCard
-            label="Persisted Rounds"
+            label="Rondas guardadas"
             value={String(snapshot?.persistedRounds ?? 0)}
           />
-          <StatusCard label="Viewers" value={String(snapshot?.viewerCount ?? 0)} />
+          <StatusCard label="Espectadores" value={String(snapshot?.viewerCount ?? 0)} />
         </section>
 
         <section className="actions" aria-label="Admin actions">
@@ -303,7 +303,7 @@ function App() {
             disabled={busy || Boolean(snapshot?.isPaused)}
             onClick={() => runControl("/api/admin/pause", "pause")}
           >
-            {pending === "pause" ? "Pausing..." : "Pause"}
+            {pending === "pause" ? "Pausando..." : "Pausar"}
           </button>
           <button
             type="button"
@@ -311,10 +311,10 @@ function App() {
             disabled={busy || !snapshot?.isPaused}
             onClick={() => runControl("/api/admin/resume", "resume")}
           >
-            {pending === "resume" ? "Resuming..." : "Resume"}
+            {pending === "resume" ? "Reanudando..." : "Reanudar"}
           </button>
           <button type="button" className="btn" disabled={busy} onClick={onExport}>
-            {pending === "export" ? "Exporting..." : "Export JSON"}
+            {pending === "export" ? "Exportando..." : "Exportar JSON"}
           </button>
           <button
             type="button"
@@ -322,7 +322,7 @@ function App() {
             disabled={busy}
             onClick={() => setIsResetOpen(true)}
           >
-            Reset Data
+            Borrar datos
           </button>
         </section>
       </main>
@@ -330,13 +330,13 @@ function App() {
       {isResetOpen && (
         <div className="modal-backdrop" role="dialog" aria-modal="true">
           <div className="modal">
-            <h2>Reset all data?</h2>
+            <h2>¿Borrar todos los datos?</h2>
             <p>
-              This permanently deletes every saved round and resets scores.
-              Current game flow is also paused.
+              Esto elimina permanentemente todas las rondas guardadas y
+              reinicia las puntuaciones. El juego también se pausará.
             </p>
             <p>
-              Type <code>{RESET_TOKEN}</code> to continue.
+              Escribe <code>{RESET_TOKEN}</code> para continuar.
             </p>
             <input
               type="text"
@@ -356,7 +356,7 @@ function App() {
                 }}
                 disabled={busy}
               >
-                Cancel
+                Cancelar
               </button>
               <button
                 type="button"
@@ -364,7 +364,7 @@ function App() {
                 onClick={onReset}
                 disabled={busy || resetText !== RESET_TOKEN}
               >
-                {pending === "reset" ? "Resetting..." : "Confirm Reset"}
+                {pending === "reset" ? "Borrando..." : "Confirmar borrado"}
               </button>
             </div>
           </div>