v0.3.0

What's Changed

• fix(cli): friendly error when --server can't be resolved by @benlamlih in #13
• feat(mcp): ${VAR} expansion in server.json by @benlamlih in #14
• feat(scoring): flag probable task-spec gaps by @benlamlih in #15
• feat(generate): server execution context and read-only default by @benlamlih in #16
• feat(cli): 'whetkit diff' compares two summary-json files by @benlamlih in #18
• feat(llm): rough USD cost estimates next to token counts by @benlamlih in #19
• feat(run): --reset-cmd resets stateful fixtures between repetitions by @benlamlih in #17
• chore(release): v0.3.0 by @benlamlih in #20

Full Changelog: v0.2.0...v0.3.0