Add <%br= %> jqhtml syntax docs, class override detection, npm update

Document event handler placement and model fetch clarification

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

node_modules/@jqhtml/parser/dist/ast.d.ts

@@ -44,6 +44,7 @@ export interface ExpressionNode extends BaseNode {
     type: NodeType.EXPRESSION;
     code: string;
     escaped: boolean;
+    nl2br: boolean;
 }
 export interface IfStatementNode extends BaseNode {
     type: NodeType.IF_STATEMENT;