style: simplify panel to minimalist layout

src/App.tsx

@@ -38,12 +38,9 @@ function LoginGate({ onUnlock }: { onUnlock: () => void }) {
   return (
     <main className="login-shell">
       <section className="login-card">
-        <p className="eyebrow">3proxy control plane</p>
-        <h1>Minimal panel, operator-first signal.</h1>
-        <p className="lede">
-          The first slice focuses on clarity: health, users, quotas, and system controls without
-          dashboard noise.
-        </p>
+        <p className="eyebrow">3proxy UI</p>
+        <h1>Panel access</h1>
+        <p className="lede">Hardcoded credentials for the current prototype build.</p>
         <form className="login-form" onSubmit={handleSubmit}>
           <label>
             Login
@@ -69,7 +66,7 @@ function LoginGate({ onUnlock }: { onUnlock: () => void }) {
         </form>
         <div className="login-note">
           <span>Prototype auth is intentionally hardcoded.</span>
-          <span>Runtime-backed auth will replace this in the next phase.</span>
+          <span>Backend-backed access control comes next.</span>
         </div>
       </section>
     </main>
@@ -83,12 +80,9 @@ function DashboardTab() {
     <section className="tab-grid">
       <article className="panel-card hero-card">
         <div>
-          <p className="eyebrow">3proxy runtime</p>
-          <h2>Service health stays front and center.</h2>
-          <p className="muted">
-            The live card will be wired to process health and graceful reload endpoints in the next
-            implementation step.
-          </p>
+          <p className="eyebrow">Service</p>
+          <h2>3proxy status</h2>
+          <p className="muted">Health, process metadata, and restart actions.</p>
         </div>
         <div className="hero-status">
           <span className={`status-pill ${serviceTone}`}>{dashboardSnapshot.service.status}</span>
@@ -126,7 +120,7 @@ function DashboardTab() {
       <article className="panel-card">
         <p className="section-label">User pressure</p>
         <strong className="metric">{dashboardSnapshot.users.total}</strong>
-        <p className="muted">Configured users in the current proxy profile.</p>
+        <p className="muted">Configured users in the active profile.</p>
         <div className="stat-stack">
           <div>
             <span>Live now</span>
@@ -174,7 +168,7 @@ function UsersTab() {
     <section className="tab-grid users-grid">
       <article className="panel-card user-form-card">
         <p className="section-label">Add user</p>
-        <h2>Shape new access without leaving the panel.</h2>
+        <h2>New account</h2>
         <form className="user-form">
           <label>
             Username
@@ -195,8 +189,7 @@ function UsersTab() {
           <button type="button">Queue user creation</button>
         </form>
         <p className="muted">
-          Final flow will write `users`, `allow`, and quota counters into generated 3proxy config
-          and data files.
+          Final flow will write `users`, `allow`, and quota counters into generated runtime files.
         </p>
       </article>
 
@@ -204,7 +197,7 @@ function UsersTab() {
         <div className="table-header">
           <div>
             <p className="section-label">Users</p>
-            <h2>Traffic, quota, and copyable proxy links.</h2>
+            <h2>Accounts and usage</h2>
           </div>
           <span className="muted">{dashboardSnapshot.userRecords.length} rows</span>
         </div>
@@ -283,7 +276,7 @@ function SystemTab() {
     <section className="tab-grid system-grid">
       <article className="panel-card">
         <p className="section-label">Runtime model</p>
-        <h2>One place for ports, services, and reload strategy.</h2>
+        <h2>Ports and reload mode</h2>
         <div className="system-stats">
           <div>
             <span>Config mode</span>
@@ -309,7 +302,7 @@ function SystemTab() {
         <div className="table-header">
           <div>
             <p className="section-label">Generated config preview</p>
-            <h2>Readable before it becomes writable.</h2>
+            <h2>Generated config</h2>
           </div>
           <span className="muted">View-only for now</span>
         </div>
@@ -332,10 +325,8 @@ export default function App() {
       <aside className="sidebar">
         <div className="brand-block">
           <p className="eyebrow">3proxy UI</p>
-          <h1>Operator panel</h1>
-          <p className="muted">
-            Dashboard, users, and system settings aligned with official 3proxy primitives.
-          </p>
+          <h1>Control panel</h1>
+          <p className="muted">Dashboard, users, and system settings.</p>
         </div>
 
         <nav className="nav-list" aria-label="Primary">