Pre-release v0.0.55-20250720215118

What's Changed

• Cleanup scripts by @stunningpixels in #288
• Update cleanup script copy (vibe-kanban) by @stunningpixels in #293
• Simplify dev scripts by @stunningpixels in #294
• Update AGENT.md by @stunningpixels in #297
• tasks endpoint has_in_progress_attempt update (vibe-kanban) by @stunningpixels in #299
• Execute Plan: Rebase onto different branch update (vibe-kanban) by @stunningpixels in #300
• Execute Plan: Stream more patches to the FE (vibe-kanban) by @stunningpixels in #298

Full Changelog: v0.0.54-20250720144306...v0.0.55-20250720215118