Migration: Rename gutter → gap

Context

The gutter property on layout slots is renamed to gap in the new Tailwind-compatible grid. The contentGutter property (parent layout content gap inheritance) is also renamed — directly to gap (the content* prefix is dropped, see prompt 03).

What to Do

Apply these renames in all YAML files:

Order matters: replace contentGutter: before gutter: to avoid partial matching.

No user confirmation needed — these renames are unambiguous. The gutter property name does not exist in any other Lowdefy context.

Files to Check

Glob: **/*.{yaml,yml} Grep: gutter:

Examples

Before

- id: my_row
  type: Box
  slots:
    content:
      gutter: 16
      blocks: [...]

After

- id: my_row
  type: Box
  slots:
    content:
      gap: 16
      blocks: [...]

Before — contentGutter

- id: page_layout
  type: PageHeaderMenu
  layout:
    contentGutter: 24

After

- id: page_layout
  type: PageHeaderMenu
  layout:
    gap: 24

Edge Cases

• Do not rename gutter inside string values, operator expressions, or code blocks
• Only rename YAML keys (at the start of a line after whitespace), not values

Verification

grep -rn 'gutter:' --include='*.yaml' --include='*.yml' .

Should return zero matches.