v0.5.0

Added

• User-scoped PowerShell, Bash, and Zsh completion through dotnet-do :completion, including built-in commands, task names, task parameters, booleans, and same-file enum values.
• Tools.Bun typed commands for dependency installation, scripts, tests, builds, and package publishing.
• Tools.Bun.EnsureAvailable for making Bun available through the shared tool-installation seam.
• Tools.Npm typed commands for installing dependencies, running scripts and tests, packing, and publishing packages.

Changed

• Task help keeps parameter lines focused on descriptions, requirements, secrets, and defaults instead of derived environment variable names.
• Boolean task parameters accept a bare --flag as true; explicit true and false values remain supported.
• Name-only Do.Param declarations now return OptionalParam<T> and support typed parameters without defaults; defaults and .Required() both resolve to Param<T> with a non-nullable Value.
• Tool availability commands use the common EnsureAvailable property name: Tools.Azure.EnsureAvailable, Tools.Bun.EnsureAvailable, and Tools.Scoop.EnsureAvailable.
• Successful tool commands no longer emit a completion log after execution.

Fixed

• Default process-output logging records each output line as the message instead of a structured log property.
• Task help renders named API default values without the defaultValue: argument name.