fix(core): update tsbuild to fix cross-module import paths

Updated @git.zone/tsbuild to 4.1.2 which correctly rewrites imports
from '../ts_shared/' to '../dist_ts_shared/' in compiled output.

package.json

@@ -35,12 +35,12 @@
     "@push.rocks/smartunique": "^3.0.9",
     "@push.rocks/smarturl": "^3.1.0",
     "fflate": "^0.8.2",
-    "file-type": "^21.2.0",
+    "file-type": "^21.3.0",
     "modern-tar": "^0.7.3",
     "tar-stream": "^3.1.7"
   },
   "devDependencies": {
-    "@git.zone/tsbuild": "^4.0.2",
+    "@git.zone/tsbuild": "^4.1.2",
     "@git.zone/tsrun": "^2.0.1",
     "@git.zone/tstest": "^3.1.4",
     "@types/tar-stream": "^3.1.3"