Bundle frontend with esbuild, serve fonts offline, fix dashboard

- Add esbuild bundling: JS (IIFE, minified, sourcemapped) and CSS into
  single dist/ files, replacing 15+ individual CSS links and CDN scripts
- Bundle Chart.js and ELK.js from npm instead of CDN (fully offline)
- Serve DM Sans and Orbitron fonts locally from static/fonts/
- Fix dashboard automation card stretching full width (max-width: 500px)
- Fix time_of_day condition not localized in automation cards
- Add Chrome browser tools context file for MCP testing workflow
- Update frontend context with bundling docs and Chrome tools reference

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

server/src/wled_controller/static/css/all.css

@@ -0,0 +1,17 @@
+/* CSS bundle entry — imports all stylesheets in correct order */
+@import './fonts.css';
+@import './base.css';
+@import './layout.css';
+@import './components.css';
+@import './cards.css';
+@import './modal.css';
+@import './calibration.css';
+@import './advanced-calibration.css';
+@import './dashboard.css';
+@import './streams.css';
+@import './patterns.css';
+@import './automations.css';
+@import './tree-nav.css';
+@import './tutorials.css';
+@import './graph-editor.css';
+@import './mobile.css';

server/src/wled_controller/static/css/dashboard.css

@@ -306,6 +306,10 @@
     flex-shrink: 0;
 }
 
+.dashboard-automation {
+    max-width: 500px;
+}
+
 .dashboard-automation .dashboard-target-metrics {
     min-width: 48px;
 }

server/src/wled_controller/static/css/fonts.css

@@ -0,0 +1,31 @@
+/* Local font faces — no external CDN dependency */
+
+/* DM Sans — latin-ext */
+@font-face {
+    font-family: 'DM Sans';
+    font-style: normal;
+    font-weight: 400 700;
+    font-display: swap;
+    src: url('../fonts/dm-sans-latin-ext.woff2') format('woff2');
+    unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
+}
+
+/* DM Sans — latin */
+@font-face {
+    font-family: 'DM Sans';
+    font-style: normal;
+    font-weight: 400 700;
+    font-display: swap;
+    src: url('../fonts/dm-sans-latin.woff2') format('woff2');
+    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
+}
+
+/* Orbitron 700 — latin */
+@font-face {
+    font-family: 'Orbitron';
+    font-style: normal;
+    font-weight: 700;
+    font-display: swap;
+    src: url('../fonts/orbitron-700-latin.woff2') format('woff2');
+    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
+}

server/src/wled_controller/static/js/core/graph-layout.js

@@ -2,7 +2,7 @@
  * Graph layout via ELK.js — converts entity data into positioned nodes/edges.
  */
 
-/* global ELK */
+import ELK from 'elkjs/lib/elk.bundled.js';
 
 const NODE_WIDTH = 190;
 const NODE_HEIGHT = 56;

server/src/wled_controller/static/js/features/dashboard.js

@@ -681,7 +681,8 @@ function renderDashboardAutomation(automation, sceneMap = new Map()) {
                 return `${apps} (${matchLabel})`;
             }
             if (c.condition_type === 'startup') return t('automations.condition.startup');
-            return c.condition_type;
+            if (c.condition_type === 'time_of_day') return t('automations.condition.time_of_day');
+            return t(`automations.condition.${c.condition_type}`) || c.condition_type;
         });
         const logic = automation.condition_logic === 'and' ? ' & ' : ' | ';
         condSummary = parts.join(logic);

server/src/wled_controller/static/js/features/perf-charts.js

@@ -3,6 +3,10 @@
  * History is seeded from the server-side ring buffer on init.
  */
 
+import { Chart, registerables } from 'chart.js';
+Chart.register(...registerables);
+window.Chart = Chart;  // expose globally for targets.js, dashboard.js
+
 import { API_BASE, getHeaders } from '../core/api.js';
 import { t } from '../core/i18n.js';
 import { dashboardPollInterval } from '../core/state.js';

server/src/wled_controller/templates/index.html

@@ -5,9 +5,6 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>LED Grab</title>
     <link rel="icon" href="data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><text y='0.9em' font-size='90'>💡</text></svg>">
-    <link rel="preconnect" href="https://fonts.googleapis.com">
-    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
-    <link href="https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Orbitron:wght@700&display=swap" rel="stylesheet">
     <!-- PWA -->
     <meta name="theme-color" content="#1a1a1a">
     <meta name="apple-mobile-web-app-capable" content="yes">
@@ -15,23 +12,7 @@
     <meta name="apple-mobile-web-app-title" content="LED Grab">
     <link rel="apple-touch-icon" href="/static/icons/icon-192.png">
     <link rel="manifest" href="/manifest.json">
-    <link rel="stylesheet" href="/static/css/base.css">
-    <link rel="stylesheet" href="/static/css/layout.css">
-    <link rel="stylesheet" href="/static/css/components.css">
-    <link rel="stylesheet" href="/static/css/cards.css">
-    <link rel="stylesheet" href="/static/css/modal.css">
-    <link rel="stylesheet" href="/static/css/calibration.css">
-    <link rel="stylesheet" href="/static/css/advanced-calibration.css">
-    <link rel="stylesheet" href="/static/css/dashboard.css">
-    <link rel="stylesheet" href="/static/css/streams.css">
-    <link rel="stylesheet" href="/static/css/patterns.css">
-    <link rel="stylesheet" href="/static/css/automations.css">
-    <link rel="stylesheet" href="/static/css/tree-nav.css">
-    <link rel="stylesheet" href="/static/css/tutorials.css">
-    <link rel="stylesheet" href="/static/css/graph-editor.css">
-    <link rel="stylesheet" href="/static/css/mobile.css">
-    <script src="https://cdn.jsdelivr.net/npm/chart.js@4/dist/chart.umd.min.js"></script>
-    <script src="https://cdn.jsdelivr.net/npm/elkjs@0.9.3/lib/elk.bundled.js"></script>
+    <link rel="stylesheet" href="/static/dist/app.bundle.css">
 </head>
 <body style="visibility: hidden;">
     <canvas id="bg-anim-canvas"></canvas>
@@ -221,7 +202,7 @@
         </div>
     </div>
 
-    <script type="module" src="/static/js/app.js"></script>
+    <script defer src="/static/dist/app.bundle.js"></script>
     <script>
         // Initialize ambient background
         const savedBgAnim = localStorage.getItem('bgAnim') || 'off';