Optimize the opening of really large LCP publications

[mickael-menu]

Large LCP-protected publications (e.g. 8k entries) were slow to open because we re-normalized all the URLs in the manifest each time we checked a single entry. Now, URLs are pre-normalized, and we only normalize the specific URL being checked.

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Fixed

Streamer

• #639 Optimized the opening of really large LCP protected publications.

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• Fixes Some LCP protected ebooks take too long to open #639

[Copilot]

Pull Request Overview

This PR optimizes the opening of large LCP-protected publications by pre-normalizing URLs in manifests and removing the need to re-normalize all URLs when checking individual entries. The optimization addresses performance issues with publications containing thousands of entries (e.g., 8k entries).

• Removed the equivalent subscript that performed URL normalization on each lookup
• Pre-normalized URLs during parsing to avoid repeated normalization operations
• Updated all dictionary lookups to use direct key access instead of equivalent matching

Reviewed Changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
Sources/Shared/Toolkit/URL/URLProtocol.swift	Removed the equivalent subscript extension that performed expensive URL normalization on each lookup
Sources/Streamer/Parser/EPUB/EPUBEncryptionParser.swift	Added URL normalization during parsing to pre-normalize encryption resource URIs
Sources/Streamer/Parser/EPUB/OPFParser.swift	Pre-normalized URLs during link creation and updated encryption lookups to use direct key access
Sources/Streamer/Parser/EPUB/Resource Transformers/EPUBDeobfuscator.swift	Pre-normalized relative URLs and updated encryption lookups to use direct key access
Sources/Streamer/Parser/Image/ImageParser.swift	Updated format lookups to use direct key access instead of equivalent matching
Sources/Streamer/Parser/Audio/AudioParser.swift	Updated format lookups to use direct key access instead of equivalent matching
Sources/Navigator/EPUB/EPUBNavigatorViewController.swift	Updated table of contents title lookups to use direct key access
Sources/Navigator/Audiobook/PublicationMediaLoader.swift	Updated resource lookups to use direct key access
CHANGELOG.md	Added entry documenting the optimization fix

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