Docs search functionality and UI cleanup

[yofabr]

This PR introduces 2 things.

1. UI Cleanup

Fixed some minor UI issues and added error handler utilities:

• Added 404 error page with automatic 10-second redirect to dashboard
• Added user-friendly error messages with accordion dropdown details when Penny server is not running

2. Docs Search Functionality

Added full-text search to the documentation site using Orama search engine:

• Advanced search mode with structured data indexing
• Breadcrumb navigation showing document hierarchy in search results
• Highlighted matches using <mark> tags to highlight search terms
• Content previews showing relevant snippets from matching pages
• Keyboard shortcut support (Cmd+K / Ctrl+K) to open search

Technical Details

• Created /api/search route with Orama integration
• Built custom search dialog component with Fumadocs UI components
• Implemented async page data loading for proper structuredData extraction

[yofabr]

@frectonz waiting for your your response.

[frectonz]

Since the docs page is deployed on Cloudflare Pages, we can't include API routes, so the search endpoint you added won't work.

[frectonz]

The changes to the dashboard UI are good though. I will merge those if you remove the search tool additions.

[yofabr]

Yeah. that's true for static pages. But I made a way for it to generate the static search.json file with datas at /out/api/search.json (which can be accessed in static pages aka cloudflare pages) during build time.

And I tested them out locally with wrangler (Cloudflare Pages local testing)

[yofabr]

Static mode (staticGET) generates a static search index during build

[frectonz]

oh ok nice didn't notice the staticGET

[frectonz]

Thanks for the PR.