⚡ Bolt: [performance improvement] Preload LCP and Preconnect Fonts

[Mitesh411]

💡 What:

• Added <link rel="preload" as="image" href="assets/img/hero-bg.jpg"> to index.html.
• Added <link rel="preconnect" href="https://fonts.googleapis.com"> and <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin> to both index.html and portfolio-details.html.

🎯 Why:

• The hero-bg.jpg is the Largest Contentful Paint (LCP) element on the homepage. Preloading it ensures the browser starts fetching it immediately, rather than waiting to discover it in the CSS file.
• Preconnecting to Google Fonts domains establishes the early DNS resolution, TCP handshake, and TLS negotiation, significantly reducing the latency for fetching font stylesheets and font files.

📊 Impact:

• Faster LCP time for index.html as the main hero image is fetched earlier.
• Faster font rendering times across both pages, reducing potential FOIT (Flash of Invisible Text) or FOUT (Flash of Unstyled Text).

🔬 Measurement:

• Run a Lighthouse performance audit or use WebPageTest before and after the change to observe improvements in the Largest Contentful Paint (LCP) and First Contentful Paint (FCP) metrics. You can also inspect the Network tab in DevTools to see the connection setup times for the font requests and the earlier request initiation for hero-bg.jpg.

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PR created automatically by Jules for task 11985127944048036046 started by @Mitesh411

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[chatgpt-codex-connector]

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Reviewed commit: 24ec56dca1

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[chatgpt-codex-connector]

Allow font origins in CSP before adding preconnect

These new preconnect hints are ineffective on index.html because the page’s CSP is default-src 'self' (line 61), so cross-origin connections to fonts.googleapis.com/fonts.gstatic.com are blocked by policy fallback. In this context, the added links do not provide the intended latency win and instead add extra CSP violation noise on every page load; update CSP (for example via connect-src) alongside this optimization.

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