Fix 4-digit length restriction bug in numb command

[amirf147]

Fix 4-digit length restriction bug in numb command

PR description written with Agent in Antigravity IDE

Description

Migrates the wnKK extra in castervoice/rules/core/numbers_rules/numeric.py from ShortIntegerRef to NumberRef("wnKK", zero=True). This resolves digit sequence length constraints and allows arbitrary strings of digits to be dictated up to Dragonfly's maximum series length (7 digits).

Note: This change alone does not resolve the leading zero truncation issue (e.g. dictating "numb zero one one" will still print "11" because the leading zero is mathematically dropped by unmodified Dragonfly).

Related Issue

• Resolves: Unable to dictate 5 consecutive numbers #857
• Related to: Saying "zero" interferes with the numb command #938

Motivation and Context

• Why this change is required: ShortIntegerRef is designed for shorthand magnitudes, which restricts the engine from cleanly parsing arbitrary sequential digit dictations longer than 4 characters (e.g., "one two three four five").
• What it solves: By switching to NumberRef, the parsing is delegated to Dragonfly's native loop-based Repetition grammar, extending the length limit to 7 digits.
• Dragonfly Dependency: To fully resolve the leading zero truncation (e.g., preserving "011"), this PR should be paired with the proposed Dragonfly fix (see Fix number series sequence matching, length limits, and zero formatting dragonfly#409) that implements a custom StringInt return type. However, even without the Dragonfly patch, this PR stands alone as a valuable upgrade by immediately resolving the digit length limit (Unable to dictate 5 consecutive numbers #857).

How Has This Been Tested

• Tested locally within Caster using Kaldi back end.
• Dictating "numb one two three four five six seven" successfully parsed and typed out the full sequence.

Types of changes

• Bug fix (non-breaking change which fixes an issue or bug)

Checklist

• I have read the CONTRIBUTING document.
• My code follows the code style of this project.
• My code implements all the features I wish to merge in this pull request.

Video Demo

In the demo, I'm using baseline Dragonfly, not the other fix I proposed in dragonfly PR 409. This shows this number fix works independently for length limit but not leading zeroes getting chopped off.

2026-07-18.04-34-42.mp4