fix: use parsed number instead of raw string in repeat helper loop

[Jitmisra]

What

Fixes a bug in the repeat Handlebars helper where the loop condition used the unparsed string argument (rawNum) instead of the parseInt-parsed integer (num).

Why

Although JavaScript's implicit type coercion made the comparison i < rawNum work for typical inputs, using the raw string is semantically incorrect. The parseInt call exists specifically to validate and convert the input — the parsed result num should be used consistently after validation.

Changes

• src/helpers/repeat.ts: Changed i < rawNum → i < num in the for loop (line 12)

Testing

• All 46 existing unit tests pass ✅
• No behavioral change for valid numeric inputs