Moved to uv from poetry

Updated ruff and mypy, accepted all changes
Central exception management and injected the Session.
This removed a lot of duplicated boilerplate code.
Added health check
Updated to Angular 21

overlord/tsconfig.spec.json

@@ -3,7 +3,7 @@
   "extends": "./tsconfig.json",
   "compilerOptions": {
     "outDir": "./out-tsc/spec",
-    "types": ["jasmine"]
+    "types": ["vitest/globals"]
   },
   "include": ["src/**/*.spec.ts", "src/**/*.d.ts"]
 }