D4 Part 2: hub style.css v2 + template sweep

- style.css: slate tokens -> the canonical navy block + @font-face
  (self-hosted, latin-ext for Hungarian customer names); single 2px
  radius; hairline table rows (--line-soft dividers, density kept);
  status classes re-expressed per the design-system addendum:
  .status-badge = outline tag + CSS ::before dot keyed by the raw
  status the templates emit (ok=blue, warn/blocked/stale=amber,
  down/fail=red, pending/disabled=quiet neutral); .status-dot =
  class-based 8px dot; severity badges stay filled amber/red
  (exceptions stay loud); config badges = filled informational chips
  in v2 colors; row tint only for warn/down (warn-dim/crit-dim).
- Two-tone brand heading on all 8 'Felhom Hub' pages
  (<h1>Felhom <span>Hub</span></h1>, span = blue-bright).
- app_detail chart retinted: avg #2EA8F5 (primary data), peak #8E7CE8
  (secondary DATA series — not status red), catalog-limit line #E0A93E
  (threshold marker); legend/tick/grid -> v2 literals.
- customer_unified: JS status-message colors (success -> blue-bright,
  error -> crit), all inline slate hexes -> tokens.
- Login page inline HTML retinted (#0088cc -> #0083D8).
- Grep gate: every slate hex (#0f172a #1e293b #334155 #60a5fa #4ade80
  #facc15 #f87171 #94a3b8 #64748b #475569 #e2e8f0) at ZERO across
  hub/internal/web (non-test); statusIcon 0; inline statusColor
  style 0. go build/vet/test green; api/ + store/ untouched.

hub/internal/web/templates/app_detail.html

@@ -11,7 +11,7 @@
     {{template "icon_sprite"}}
     <div class="container">
         <header>
-            <h1>Felhom Hub</h1>
+            <h1>Felhom <span>Hub</span></h1>
             <nav class="nav-links">
                 <a href="/" class="nav-link">Dashboard</a>
                 <a href="/configs" class="nav-link">Customers</a>
@@ -108,8 +108,8 @@
                     {
                         label: 'Avg Memory (MB)',
                         data: chartData.avg_memory,
-                        borderColor: '#60a5fa',
-                        backgroundColor: 'rgba(96,165,250,0.1)',
+                        borderColor: '#2EA8F5',
+                        backgroundColor: 'rgba(46,168,245,0.1)',
                         fill: true,
                         tension: 0.3,
                         pointRadius: 2
@@ -117,7 +117,7 @@
                     {
                         label: 'Peak Memory (MB)',
                         data: chartData.peak_memory,
-                        borderColor: '#f87171',
+                        borderColor: '#8E7CE8',
                         backgroundColor: 'transparent',
                         fill: false,
                         tension: 0.3,
@@ -129,7 +129,7 @@
                     datasets.push({
                         label: 'Catalog Limit',
                         data: chartData.labels.map(function() { return chartData.catalog_limit; }),
-                        borderColor: '#4ade80',
+                        borderColor: '#E0A93E',
                         backgroundColor: 'transparent',
                         fill: false,
                         pointRadius: 0,
@@ -144,11 +144,11 @@
                         responsive: true,
                         maintainAspectRatio: false,
                         plugins: {
-                            legend: { labels: { color: '#94a3b8', font: { size: 11 } } }
+                            legend: { labels: { color: '#94A6BF', font: { size: 11 } } }
                         },
                         scales: {
-                            x: { ticks: { color: '#64748b', font: { size: 10 }, maxTicksLimit: 10 }, grid: { color: 'rgba(100,116,139,0.15)' } },
-                            y: { ticks: { color: '#64748b', font: { size: 10 } }, grid: { color: 'rgba(100,116,139,0.15)' }, title: { display: true, text: 'MB', color: '#64748b' } }
+                            x: { ticks: { color: '#5E7392', font: { size: 10 }, maxTicksLimit: 10 }, grid: { color: 'rgba(34,52,79,.5)' } },
+                            y: { ticks: { color: '#5E7392', font: { size: 10 } }, grid: { color: 'rgba(34,52,79,.5)' }, title: { display: true, text: 'MB', color: '#5E7392' } }
                         }
                     }
                 });