v0.6.0

Breaking

• Make SearchQuery fields private and expose search options through SearchQuery::opts()
• Move search-domain types under the public sift_core::search module and reduce root re-exports to SearchError, SearchOutcome, and SearchQuery
• Change SearchExecution to borrow candidates instead of taking ownership
• Replace boolean grep/index modes with GrepMode, UnindexedStrategy, and IndexWalkConfig domain types
• Change CLI dispatch to consume Cli during routing

Performance

• Cache candidate file size and directory depth from walk/index metadata, reducing repeated filesystem metadata calls
• Skip total file byte accounting unless stats are requested

Fixes

• Use bitflags::set() in PatternCompiler so disabled flags are applied correctly
• Replace unchecked storage reads with explicit little-endian read helpers

Docs

• Revamp README installation and usage documentation
• Add benchmark chart generation and benchmark result images
• Add implementation and review plans for the architecture cleanup

Deps

• Bump memmap2 from 0.9.10 to 0.9.11
• Bump actions/checkout from 6 to 7