Confirm Label_SQ is the only decoder with non-number version string; fix it

[Copilot]

RawFields.version is typed as number, but Label_SQ was assigning it directly from String.prototype.substring, producing a string and comparing with === '2'. Investigation confirmed this was the only decoder with this inconsistency — all others set raw.version via ResultFormatter.version(), which stores a number.

Changes

• Label_SQ: Wrap substring extraction with Number() and update comparison from === '2' to === 2; convert to string only at the display layer (String(decodeResult.raw.version))

// Before
decodeResult.raw.version = message.text.substring(1, 2); // string
if (decodeResult.raw.version === '2') { ... }
value: decodeResult.raw.version,

// After
decodeResult.raw.version = Number(message.text.substring(1, 2)); // number
if (decodeResult.raw.version === 2) { ... }
value: String(decodeResult.raw.version),

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