Add AlignObjectKeys and AutoPadSubObjects formatting properties

[webdevred]

Summary

Two new JBFL formatting properties for aligning object key/value pairs within and across sibling objects.

AlignObjectKeys

Pads object keys with spaces so the : separators align vertically across all entries in the same object.

// Before
{"type": "car", "name": "Frame", "authors": "Someone"}

// After (AlignObjectKeys: true)
{"type"    : "car", "name"    : "Frame", "authors" : "Someone"}

AutoPadSubObjects

Treats sibling ObjectKey entries whose values are inline objects as table rows. Computes the maximum value width per named sub-key across all siblings and pads so matching sub-key columns align.

Designed for glowMap-style structures where multiple top-level keys map to small inline objects sharing the same sub-keys:

// Before
"signal_L"    : {"color" : [1, 0.6, 0], "size" : 0.3},
"signal_R"    : {"color" : [1, 0.6, 0], "size" : 0.3},
"highbeam"    : {"color" : [0.8, 0.8, 1], "size" : 0.5},

// After (AlignObjectKeys + AutoPadSubObjects: true)
"signal_L" : {"color" : [1, 0.6, 0],    "size" : 0.3},
"signal_R" : {"color" : [1, 0.6, 0],    "size" : 0.3},
"highbeam" : {"color" : [0.8, 0.8, 1],  "size" : 0.5},

Implementation

• Formatting/Rules.hs: Added AlignObjectKeys and AutoPadSubObjects as PropertyKey Bool constructors; registered in boolProperties, eqKey, and propertyName.
• Parsing/DSL.hs: Added parseValueForKey cases for both new properties.
• Formatting.hs:
  • Added fsObjectKeyWidth :: Maybe Int and fsSubObjectWidths :: Map Text Int to FormattingState.
  • doFormatNode: computes max key width (maxKeyW) and per-sub-key max value widths (subObjectWidths); passes them into FormattingState when the respective property is enabled.
  • formatWithCursor (ObjectKey): pads the key to fsObjectKeyWidth and forwards fsSubObjectWidths into the value's formatting state.
  • addDelimiters (ObjectKey): applies column padding via T.justifyLeft (kw + 3 + vw + 1) for non-last entries when the key is found in fsSubObjectWidths. Complex (multi-line) sub-object values are excluded from width computation.
  • Fixed transposeAndFormat crash on empty input (V.null vvs guard).
  • Fixed scalarLength to exclude multiline values (changed isPrefixOf "{"|"[" to T.any (== '\n')).

Example JBFL usage

.*.glowMap {
    AlignObjectKeys: true;
    AutoPadSubObjects: true;
}

Files changed

• src/JbeamEdit/Formatting.hs
• src/JbeamEdit/Formatting/Rules.hs
• src/JbeamEdit/Parsing/DSL.hs
• examples/jbfl/complex.jbfl: added new rules
• examples/jbfl/minimal.jbfl: updated with new rules
• examples/jbeam/frame.jbeam: added glowMap section as a realistic test fixture
• All examples/formatted_jbeam/, examples/transformed_jbeam/, examples/ast/ fixtures regenerated