Nexus Changelog

Resolved ReferenceError: renderBadge is not defined crash when toggling episode watch state inside TV show group cards, ensuring watch statistics, group badge counts, and milestone triggers recalculate in real-time.

Engineered safeStorage abstraction preventing storage crashes under strict privacy modes, and created V2 structured backup strings (MCUNEXUS:v2:...) with strict legacy bitmask validation to prevent silent data wipes on empty or corrupted restore codes.

Resolved Next-Up recommendation card inversion when sorting descending, and engineered auto-expansion and smooth scroll centering for unwatched TV episodes inside collapsed series cards.

Scoped all 6 custom MCU mood themes to :is(html, body).theme-* with inline <head> pre-hydration across all site pages to eliminate theme flash, and implemented focus trapping, scroll locking, and Escape key handling on modals and menus.

Added visibilitychange lifecycle handlers to timelineCanvas and nebulaParticles to halt rendering loops in background tabs, and optimized scroll map phase detection to an O(1) viewport point hit-test, eliminating 700+ synchronous layout reflows per scroll tick.

Engineered DOM render optimization with content-visibility: auto and density-aware contain-intrinsic-size across .mcu-card, .show-row, and .upcoming-card, bypassing offscreen layout cycles and dramatically accelerating initial paint across 740+ titles.

Engineered Progressive Web App (PWA) capability featuring manifest.json, vector Arc Reactor icons, and a multi-tiered Service Worker (sw.js) delivering offline fallback caching for shell pages, fonts, and local assets.

Implemented missing debounce() utility function in script.js to fix Uncaught ReferenceError blocking search event listeners in Release and Chronological views.

Engineered normalized multi-field search logic with normalizeSearchText() and SEARCH_ALIASES to support punctuation-insensitive searching for S.H.I.E.L.D., Spider-Man, and What If...?, while removing synthetic category noise.

Hoisted THEME_DETAILS declaration in script.js to prevent Temporal Dead Zone ReferenceError when initializing under Light Theme mode.

Added optional chaining to hideWatched element assignments in restoreFilterState() to prevent DOM null pointer exceptions.

Created mcu-viewing-order.html featuring semantic HTML5 markup, Open Graph tags, and HowTo + FAQPage structured data schemas.

Integrated direct CTA links connecting the SEO landing guide directly to the live interactive progress tracker.

Scoped dark theme tokens to html.dark in style.css to apply dark background variables before body script execution.

Updated inline head scripts in upcoming.html, shows.html, faq.html, and changelog.html to dynamically set dark theme-color meta tags.

Created a beautiful custom interactive changelog.html interface supporting real-time filter categories and instant search.

Wrote comprehensive CHANGELOG.md detailing chronological product development milestones for direct GitHub integration.

Designed and added a customized, pixel-perfect changelog.svg menu bar icon to assets.

Enhanced primary topbars and mobile collapsible hamburger menus across all pages to integrate links leading smoothly to the new hub.

Implemented automatic live show status check countdown markers in shows.html.

Upgraded Print Watch Order CSS media queries to style compact PDF outputs with customized column alignments.

Removed legacy redundant inline SVG countdown markers to reduce network payload sizes.

Introduced the glassmorphic Quantum Radar banner to spotlight the user's recommended next watch on page load.

Engineered the Character & Infinity Journeys decks, complete with customized glow styles (e.g. Iron Man, Thor, Wanda).

Wrote progress export & import controls featuring lightweight compressed string sharing.

Patched a layout bug in TVA theme where character selection avatars would stretch on smaller screens.

Integrated Wakanda Gold, Stark Red, Sorcerer Violet, TVA Orange, and Spider-Man theme sets.

Added 'Select All' and 'Clear' controls inside filtering panels to simplify sorting selections.

Fixed a dark-to-light theme transition bug that caused high-contrast screens to flash standard grey.

Designed the core timeline tracker featuring fully offline local storage syncing.

Created six unique achievement badges representing completion milestones.

Wrote detailed Marvel timeline datasets incorporating films, shows, one-shots, and series.