Refactor CalendarOrchestrator with ts-linq-light

Replaces native array methods with ts-linq-light for improved functional programming
Simplifies data transformation and grouping logic
Enhances code readability and introduces more declarative data manipulation

package-lock.json

@@ -12,7 +12,8 @@
         "@rollup/rollup-win32-x64-msvc": "^4.52.2",
         "dayjs": "^1.11.19",
         "fuse.js": "^7.1.0",
-        "json-diff-ts": "^4.8.2"
+        "json-diff-ts": "^4.8.2",
+        "ts-linq-light": "^1.0.0"
       },
       "devDependencies": {
         "@fullhuman/postcss-purgecss": "^7.0.2",
@@ -4958,6 +4959,31 @@
         "node": ">=20"
       }
     },
+    "node_modules/ts-linq-light": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/ts-linq-light/-/ts-linq-light-1.0.0.tgz",
+      "integrity": "sha512-8GGyHkHlKuKFTbT/Xz/0y72OTKl1hVRMJ0MqXAaWaergCExKw3bd5M6DR3NSOA7UL0gkTMhWsql9kFYyAjkIdQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=18.0.0"
+      },
+      "optionalDependencies": {
+        "@rollup/rollup-win32-x64-msvc": "^4.53.3"
+      }
+    },
+    "node_modules/ts-linq-light/node_modules/@rollup/rollup-win32-x64-msvc": {
+      "version": "4.53.3",
+      "resolved": "https://registry.npmjs.org/@rollup/rollup-win32-x64-msvc/-/rollup-win32-x64-msvc-4.53.3.tgz",
+      "integrity": "sha512-UhTd8u31dXadv0MopwGgNOBpUVROFKWVQgAg5N1ESyCz8AuBcMqm4AuTjrwgQKGDfoFuz02EuMRHQIw/frmYKQ==",
+      "cpu": [
+        "x64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "win32"
+      ]
+    },
     "node_modules/tslib": {
       "version": "2.8.1",
       "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.8.1.tgz",