chore: tibi-types als Submodul, validate bricht bei Warnings ab

- tibi-types nach ./tibi-types als Submodul (relativ ../tibi-types.git), CI holt es via submodules:true
- tsconfig + validate enthalten Sibling und ./tibi-types (Fallback, fehlende Pfade ignoriert TS)
- yarn validate mit --fail-on-warnings

tsconfig.json

@@ -1,8 +1,8 @@
 {
     "extends": "@tsconfig/svelte/tsconfig.json",
 
-    "include": ["frontend/src/**/*", "types/**/*", "./../../cms/tibi-types", "api/**/*"],
-    "exclude": ["**/app.server.js", "**/app.server.js.map", "_temp/**", "./../../cms/tibi-types/scripts"],
+    "include": ["frontend/src/**/*", "types/**/*", "./../../cms/tibi-types", "./tibi-types", "api/**/*"],
+    "exclude": ["**/app.server.js", "**/app.server.js.map", "_temp/**", "./../../cms/tibi-types/scripts", "./tibi-types/scripts"],
     "compilerOptions": {
         "module": "esnext",
         "typeRoots": ["./node_modules/@types", "./types"],