Fix Content-Type case sensitivity and add Livewire wire:navigate support

[asamoahboateng]

Fix Content-Type case sensitivity and add Livewire wire:navigate support

Summary

This PR fixes two issues that prevent Pan from working correctly in certain Laravel environments:

1. Content-Type header case sensitivity (Bug Fix)

The InjectJavascriptLibrary middleware performed a strict equality check against text/html; charset=UTF-8 (uppercase). However, Laravel's response objects return text/html; charset=utf-8 (lowercase) in many scenarios — particularly when using Blade views and Livewire full-page components. This caused the Pan JavaScript to never be injected into the page, silently breaking all analytics tracking.

Before:

if ($response->headers->get('Content-Type') === 'text/html; charset=UTF-8') {

After:

if (str_starts_with((string) $response->headers->get('Content-Type'), 'text/html')) {

The fix uses str_starts_with to match any text/html Content-Type regardless of charset casing or additional parameters, which is consistent with how browsers interpret the Content-Type header.

2. Livewire wire:navigate support (Enhancement)

Pan's client-side JavaScript listened for Inertia's inertia:start event to reset impression tracking on page navigation, but had no equivalent listener for Livewire's wire:navigate SPA-style transitions. This meant that when using wire:navigate, navigating between pages would not re-track impressions for data-pan elements on the new page.

The fix adds a livewire:navigated event listener that resets the impression, hover, and click tracking arrays and re-scans for visible data-pan elements — matching the existing behavior for Inertia navigation.

Changes

• src/Adapters/Laravel/Http/Middleware/InjectJavascriptLibrary.php — Use str_starts_with for case-insensitive Content-Type matching
• resources/js/src/main.ts — Add livewire:navigated event listener for SPA navigation support
• resources/js/src/types.ts — Add livewireNavigatedListener to GlobalState type
• resources/js/dist/pan.iife.js — Rebuilt compiled JavaScript
• tests/.../InjectJavascriptLibraryTest.php — Added test for lowercase charset Content-Type
• README.md — Updated Livewire compatibility note

Test Plan

• All 45 existing tests pass
• New test verifies JS injection with lowercase charset=utf-8
• Existing tests confirm JS injection with uppercase charset (returned by plain string routes)
• Existing test confirms no injection for text/plain Content-Type
• Verified in a real Laravel 12 + Livewire 4 application with wire:navigate