v0.4.0

Added

• amp and antigravity harnesses.
• An MCP server with a token-conscious text projection.
• Span for pointing into sessions with zero-copy fragment resolution.
• completion subcommand; harness names are advertised to completers.
• --cwd scopes list and query to a folder.

Changed

• query indexes in parallel and interactive navigation is responsive.

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• crates.io: https://crates.io/crates/txcript/0.4.0
• npm: https://www.npmjs.com/package/txcript/v/0.4.0
• docs.rs: https://docs.rs/txcript/0.4.0