v0.6.0 — dry-run mode, safer defaults, autocomplete description

Command UX improvements: proper autocomplete description, safer default behavior, and a dry-run mode for testing without writing files.

Added

• /hacky-hours dry-run — runs the full interactive workflow without creating or modifying any files; file contents are shown in code blocks with a ↳ would write to <path> note instead
• YAML frontmatter description field — replaces the version comment; autocomplete now shows a human-readable description

Changed

• No-argument behavior — running /hacky-hours bare now prints the help message instead of immediately starting the workflow
• Help message — added a one-paragraph description of what Hacky Hours is
• "Fresh project" greeting — expanded to introduce the framework to new users

Fixed

• README.md — corrected "Hacky Hour" to "Hacky Hours"