mir-frontend-vanilla

Make It Right (vanilla JS / no-framework reactivity tier). Plain-DOM footguns that no reactive library is present to hide. Covers event listeners never removed (the #1 leak) and AbortController as the removal mechanism; detached DOM nodes retained by a closure or a module-scope map; Intersection/Mutation/ResizeObservers never disconnected and timers that outlive their element; innerHTML as an XSS sink and the…