Agent chat, config editor, vault reader, network status - initial implementation

static/style.css

@@ -31,3 +31,132 @@ body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; b
     .nav-links a.active { border-right: none; border-bottom-color: var(--accent); }
     .content { margin-left: 0; padding: 12px; }
 }
+
+/* ── Config Panel ───────────────────────────────────────────────── */
+.config-panel { padding: 0; overflow: hidden; display: flex; flex-direction: column; }
+.config-panel h2 { margin: 0; font-size: 16px; }
+
+.config-file-list,
+.config-editor {
+    padding: 20px;
+}
+
+/* File List */
+.config-header {
+    display: flex; align-items: center; justify-content: space-between;
+    margin-bottom: 12px;
+}
+.config-count {
+    font-size: 12px; color: var(--text-muted);
+}
+.config-files-container {
+    max-height: 520px; overflow-y: auto;
+}
+.config-file-item {
+    display: flex; align-items: center; justify-content: space-between;
+    padding: 10px 12px; border-radius: 6px; cursor: pointer;
+    transition: background 0.12s; border: 1px solid transparent;
+    margin-bottom: 4px;
+}
+.config-file-item:hover { background: rgba(0,212,255,0.06); border-color: var(--border); }
+.config-file-item.selected {
+    background: rgba(0,212,255,0.1); border-color: var(--accent);
+}
+.file-item-name { font-size: 14px; font-weight: 500; flex: 1; }
+.file-item-meta { font-size: 11px; color: var(--text-muted); margin-left: 12px; white-space: nowrap; }
+
+/* Editor */
+.editor-header {
+    display: flex; align-items: center; gap: 12px;
+    margin-bottom: 12px; padding-bottom: 12px;
+    border-bottom: 1px solid var(--border);
+}
+.editor-filename {
+    font-size: 16px; font-weight: 600; flex: 1;
+    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
+}
+.editor-actions { display: flex; gap: 8px; }
+.editor-body {
+    display: flex; position: relative;
+    border: 1px solid var(--border); border-radius: var(--radius);
+    overflow: hidden; background: #0a0e14;
+}
+.editor-line-numbers {
+    flex: 0 0 48px; padding: 10px 0; overflow: hidden;
+    background: #0d1117; border-right: 1px solid var(--border);
+    text-align: right; user-select: none;
+    font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
+    font-size: 13px; line-height: 1.5;
+    color: var(--text-muted); min-height: 200px;
+}
+.editor-line-numbers .ln {
+    padding: 0 8px; height: 19.5px;
+}
+.editor-textarea {
+    flex: 1; padding: 10px 12px; border: none; outline: none; resize: none;
+    font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
+    font-size: 13px; line-height: 1.5; tab-size: 4;
+    background: transparent; color: var(--text); min-height: 300px;
+}
+.editor-textarea:disabled {
+    opacity: 0.5; cursor: wait;
+}
+
+/* Status Bar */
+.editor-status-bar {
+    display: flex; align-items: center; gap: 16px;
+    margin-top: 8px; padding: 6px 12px;
+    border: 1px solid var(--border); border-radius: var(--radius);
+    background: var(--surface);
+    font-size: 11px; color: var(--text-muted);
+    overflow: hidden;
+}
+#status-path {
+    flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
+}
+.status-saved { color: var(--success); flex-shrink: 0; }
+
+/* Buttons */
+.btn {
+    padding: 6px 14px; border: 1px solid var(--border); border-radius: 6px;
+    background: var(--surface); color: var(--text); cursor: pointer;
+    font-size: 13px; transition: all 0.12s; white-space: nowrap;
+}
+.btn:hover { border-color: var(--accent); color: var(--accent); }
+.btn:disabled { opacity: 0.5; cursor: not-allowed; }
+.btn-primary {
+    background: var(--accent); color: #000; border-color: var(--accent);
+    font-weight: 600;
+}
+.btn-primary:hover { background: var(--accent-hover); }
+.btn-sm { padding: 4px 10px; font-size: 12px; }
+
+/* Toast Notification */
+.config-toast {
+    position: fixed; z-index: 9999;
+    padding: 10px 20px; border-radius: var(--radius);
+    font-size: 13px; font-weight: 500;
+    box-shadow: 0 4px 20px rgba(0,0,0,0.4);
+    max-width: 80%; text-align: center;
+    animation: toast-in 0.2s ease;
+}
+.toast-success { background: #1a3a2a; border: 1px solid var(--success); color: var(--success); }
+.toast-error { background: #3a1a1a; border: 1px solid var(--danger); color: var(--danger); }
+.toast-info { background: #1a2a3a; border: 1px solid var(--accent); color: var(--accent); }
+@keyframes toast-in {
+    from { opacity: 0; transform: translateX(-50%) translateY(-10px); }
+    to { opacity: 1; transform: translateX(-50%) translateY(0); }
+}
+
+/* Mobile */
+@media (max-width: 768px) {
+    .config-panel { padding: 0; }
+    .config-file-list, .config-editor { padding: 12px; }
+    .config-file-item { padding: 8px 10px; }
+    .editor-body { flex-direction: column; }
+    .editor-line-numbers { display: none; }
+    .editor-textarea { min-height: 250px; }
+    .editor-header { flex-wrap: wrap; }
+    .editor-filename { width: 100%; font-size: 14px; }
+    .editor-status-bar { flex-wrap: wrap; gap: 8px; }
+}