First public pre-release — Windows standalone executable

First public pre-release.

What's in this build:

• Standalone Windows exe — no Python required
• ComfyUI prompt metadata display (model, prompts, sampler, CFG, seed)
• MBQ Wedge integration — swept parameter overlaid on canvas
• Folder navigation with filmstrip
• Zoom Lock, Fit Lock, Scroll Freeze

Known / pre-release caveats:

• Windows only (exe); source runs on Linux, Mac untested
• Not code-signed — SmartScreen will warn on first launch (More info → Run anyway)
• Pre-release: expect rough edges, feedback welcome