Sequence Builder: visual macro editor for multi-step protocol sequences

[vailuc]

Background

Programming or initializing hardware often requires multi-step sequences such as:

Reset → Poll status register → Wait for bit 0 high → Start flash write → Verify

Goal

Build a visual macro editor for defining and running such protocol sequences.

Why

Instead of opaque scripts, users can build reusable sequences from known decoder frames and share them with the project.

Acceptance criteria

• UI for adding, reordering, and configuring sequence steps.
• Steps can reference existing decoder frame types (reset, write, read, wait, etc.).
• Macros are exportable/importable as JSON.
• Macros are tied to the existing decoder config state.