Reproducing the issue with
typia + source-map-support + plain typescript project

My understanding of the problem:
Typescript compiler creates source map BEFORE the transformer is called.
so source map thinks js is 22 lines,
while resulting js is 34 lines which definitely breaks ability to enrich stack traces with proper file names and line numbers...

To try yourself run

npm i
npm run dev

After the run, look here:

...
    at CorrectStackTrace (..../typia-sourcemap-issue/src/go.ts:6:15)
...
    at WrongStackTrace (..../typia-sourcemap-issue/build/go.js:25:11)
...

Full program output:

CorrectStackTrace: Error: just an error
    at CorrectStackTrace (..../typia-sourcemap-issue/src/go.ts:6:15)
    at Object.<anonymous> (..../typia-sourcemap-issue/src/go.ts:20:1)
    at Module._compile (node:internal/modules/cjs/loader:1159:14)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1213:10)
    at Module.load (node:internal/modules/cjs/loader:1037:32)
    at Function.Module._load (node:internal/modules/cjs/loader:878:12)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12)
    at node:internal/main/run_main_module:23:47
-
WrongStackTrace: Error: Error on typia.assert(): invalid type on $input, expect to be number
    at new TypeGuardError (..../typia-sourcemap-issue/node_modules/typia/src/TypeGuardError.ts:9:9)
    at ..../typia-sourcemap-issue/node_modules/typia/src/functional/$guard.ts:28:19
    at ..../typia-sourcemap-issue/build/go.js:18:53
    at ..../typia-sourcemap-issue/build/go.js:23:15
    at WrongStackTrace (..../typia-sourcemap-issue/build/go.js:25:11)
    at Object.<anonymous> (..../typia-sourcemap-issue/src/go.ts:22:1)
    at Module._compile (node:internal/modules/cjs/loader:1159:14)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1213:10)
    at Module.load (node:internal/modules/cjs/loader:1037:32)
    at Function.Module._load (node:internal/modules/cjs/loader:878:12)