feat: telegram commands, app settings, bot polling, webhook handling, UI improvements

Adds telegram bot command system with 13 commands (search, latest, random, etc.),
webhook/polling handlers, rate limiting, app settings page, and various UI/UX
improvements across all entity pages.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/src/lib/components/JinjaEditor.svelte

@@ -67,7 +67,7 @@
 		},
 	});
 
-	onMount(() => {
+	function buildExtensions(isDark: boolean) {
 		const extensions = [
 			jinjaLang,
 			errorLineField,
@@ -88,17 +88,14 @@
 				'.ͼ5': { color: '#6b7280' },
 			}),
 		];
+		if (isDark) extensions.push(oneDark);
+		if (placeholder) extensions.push(cmPlaceholder(placeholder));
+		return extensions;
+	}
 
-		if (theme.isDark) {
-			extensions.push(oneDark);
-		}
-
-		if (placeholder) {
-			extensions.push(cmPlaceholder(placeholder));
-		}
-
+	onMount(() => {
 		view = new EditorView({
-			state: EditorState.create({ doc: value, extensions }),
+			state: EditorState.create({ doc: value, extensions: buildExtensions(theme.isDark) }),
 			parent: container,
 		});
 
@@ -127,31 +124,8 @@
 			const currentDoc = view.state.doc.toString();
 			view.destroy();
 
-			const extensions = [
-				jinjaLang,
-				errorLineField,
-				EditorView.updateListener.of((update) => {
-					if (update.docChanged) {
-						onchange(update.state.doc.toString());
-					}
-				}),
-				EditorView.lineWrapping,
-				EditorView.theme({
-					'&': { fontSize: '13px', fontFamily: "'Consolas', 'Monaco', 'Courier New', monospace" },
-					'.cm-content': { minHeight: `${rows * 1.5}em`, padding: '8px' },
-					'.cm-editor': { borderRadius: '0.375rem', border: '1px solid var(--color-border)' },
-					'.cm-focused': { outline: '2px solid var(--color-primary)', outlineOffset: '0px' },
-					'.cm-error-line': { backgroundColor: 'rgba(239, 68, 68, 0.2)', outline: '1px solid rgba(239, 68, 68, 0.4)' },
-					'.ͼc': { color: '#e879f9' },
-					'.ͼd': { color: '#38bdf8' },
-					'.ͼ5': { color: '#6b7280' },
-				}),
-			];
-			if (isDark) extensions.push(oneDark);
-			if (placeholder) extensions.push(cmPlaceholder(placeholder));
-
 			view = new EditorView({
-				state: EditorState.create({ doc: currentDoc, extensions }),
+				state: EditorState.create({ doc: currentDoc, extensions: buildExtensions(isDark) }),
 				parent: container,
 			});
 		}