fix(pkg): pass workspace patterns from config to MonorepoDetector

[miguelramos]

The CLI was failing to find packages in directories like 'playground/' despite being configured in repo.config.toml with patterns = ["packages/", "playground/*"].

Root cause: MonorepoDetector was being created with default configuration instead of using the workspace patterns from repo.config.toml.

Changes:

• Add build_monorepo_config() to VersionResolver to merge workspace patterns from PackageToolsConfig into MonorepoConfig
• Update detect_monorepo() and discover_monorepo_packages() to use MonorepoDetector::with_filesystem_and_config()
• Add new_with_config() and with_filesystem_and_config() constructors to PackageMapper for passing config with workspace patterns
• Add new_with_config() to PackageDetector for config-aware detection
• Add full_config field to ChangesetManager to store complete config
• Update ChangesAnalyzer to use PackageMapper::with_filesystem_and_config()
• Update detect_affected_packages() in CLI to pass config parameter

Also fixes:

• Pre-existing large_futures clippy warning in dispatch.rs
• Add #[allow(clippy::large_futures)] to audit test modules
• Fix field_reassign_with_default warnings in changeset tests

BREAKING CHANGE: ChangesetManager::with_storage() now requires PackageToolsConfig instead of ChangesetConfig