feat: upgrade web GUI to modular ES6 and add Chart.js

This commit completely overhauls the initial GUI:
- Splits monolithic JS/CSS into an ES6 module structure
- Implements an industrial 'Control Room' dark theme
- Adds dynamic file selection endpoints for CSV and JSON judge logs
- Integrates Chart.js to automatically render visualizations from CSV data
- Updates web_gui_plan.md to reflect architectural changes

1 files changed, 113 insertions, 0 deletions

diff --git a/api/static/css/results.css b/api/static/css/results.css
new file mode 100644
index 0000000..9a532b8
--- /dev/null
+++ b/api/static/css/results.css
@@ -0,0 +1,113 @@
+.results-container {
+    padding: var(--space-sm);
+}
+
+.results-controls {
+    padding: var(--space-md) var(--space-lg);
+    background-color: var(--color-bg-1);
+    border-bottom: var(--border-width) solid var(--color-bg-3);
+    display: flex;
+    align-items: center;
+}
+
+.data-table-wrapper {
+    margin-bottom: var(--space-xl);
+    border: var(--border-width) solid var(--color-bg-3);
+    border-radius: var(--border-radius);
+    overflow: hidden;
+}
+
+.data-table-title {
+    background-color: var(--color-bg-1);
+    padding: var(--space-sm) var(--space-md);
+    font-size: 0.75rem;
+    font-weight: 800;
+    color: var(--color-accent);
+    text-transform: uppercase;
+    border-bottom: var(--border-width) solid var(--color-bg-3);
+}
+
+.data-table {
+    width: 100%;
+    border-collapse: collapse;
+    font-size: 0.8125rem;
+    background-color: var(--color-bg-1);
+    table-layout: auto;
+}
+
+.data-table th {
+    text-align: left;
+    padding: 12px 16px;
+    background-color: var(--color-bg-2);
+    color: var(--color-text-secondary);
+    font-weight: 700;
+    text-transform: uppercase;
+    font-size: 0.65rem;
+    letter-spacing: 0.05em;
+    border-bottom: var(--border-width) solid var(--color-bg-3);
+    white-space: nowrap;
+}
+
+.data-table td {
+    padding: 10px 16px;
+    border-bottom: var(--border-width) solid var(--color-bg-3);
+    color: var(--color-text-primary);
+    max-width: 400px;
+    white-space: normal;
+    word-wrap: break-word;
+    vertical-align: top;
+}
+
+.data-table tr:last-child td {
+    border-bottom: none;
+}
+
+.data-table tr:hover td {
+    background-color: var(--color-bg-2);
+}
+
+/* Image Grid */
+.image-grid {
+    display: grid;
+    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
+    gap: var(--space-lg);
+    padding: var(--space-lg);
+}
+
+.image-card {
+    background-color: var(--color-bg-1);
+    border: var(--border-width) solid var(--color-bg-3);
+    border-radius: var(--border-radius);
+    overflow: hidden;
+    transition: var(--transition-fast);
+}
+
+.image-card:hover {
+    border-color: var(--color-accent);
+}
+
+.image-card img {
+    width: 100%;
+    height: auto;
+    display: block;
+    background-color: white; /* Charts usually have white background */
+}
+
+.image-card-footer {
+    padding: var(--space-sm) var(--space-md);
+    font-size: 0.75rem;
+    font-weight: 600;
+    color: var(--color-text-secondary);
+    text-align: center;
+    border-top: var(--border-width) solid var(--color-bg-3);
+}
+
+/* Chart Canvas Container */
+.chart-container {
+    background-color: var(--color-bg-1);
+    border: var(--border-width) solid var(--color-bg-3);
+    border-radius: var(--border-radius);
+    padding: var(--space-md);
+    position: relative;
+    height: 300px;
+}