Refactor FXIOS [Nimbus] Update initial experiments JSON for Nimbus (#29450)

Author: github-actions[bot]

firefox-ios/Client/Experiments/initial_experiments.json

@@ -1,174 +1,5 @@
 {
   "data": [
-    {
-      "schemaVersion": "1.12.0",
-      "slug": "default-shortcuts-feature2",
-      "id": "default-shortcuts-feature2",
-      "arguments": {},
-      "application": "org.mozilla.ios.Firefox",
-      "appName": "firefox_ios",
-      "appId": "org.mozilla.ios.Firefox",
-      "channel": "release",
-      "userFacingName": "default shortcuts feature2",
-      "userFacingDescription": "sponsored shortcut feature",
-      "isEnrollmentPaused": true,
-      "isRollout": false,
-      "bucketConfig": {
-        "randomizationUnit": "nimbus_id",
-        "namespace": "ios-hnt-sponsored-shortcuts-feature-release-2",
-        "start": 0,
-        "count": 10000,
-        "total": 10000
-      },
-      "featureIds": [
-        "hnt-sponsored-shortcuts-feature"
-      ],
-      "probeSets": [],
-      "outcomes": [
-        {
-          "slug": "sponsored_tiles",
-          "priority": "secondary"
-        }
-      ],
-      "branches": [
-        {
-          "slug": "control",
-          "ratio": 1,
-          "feature": {
-            "featureId": "this-is-included-for-mobile-pre-96-support",
-            "enabled": false,
-            "value": {}
-          },
-          "features": [
-            {
-              "featureId": "hnt-sponsored-shortcuts-feature",
-              "enabled": true,
-              "value": {
-                "enabled": true
-              }
-            }
-          ]
-        },
-        {
-          "slug": "treatment-a",
-          "ratio": 1,
-          "feature": {
-            "featureId": "this-is-included-for-mobile-pre-96-support",
-            "enabled": false,
-            "value": {}
-          },
-          "features": [
-            {
-              "featureId": "hnt-sponsored-shortcuts-feature",
-              "enabled": true,
-              "value": {
-                "enabled": false
-              }
-            }
-          ]
-        }
-      ],
-      "targeting": "((is_already_enrolled) || ((isFirstRun == 'true') && (app_version|versionCompare('141.0.1') >= 0)))",
-      "startDate": "2025-07-24",
-      "enrollmentEndDate": "2025-08-21",
-      "endDate": null,
-      "proposedDuration": 28,
-      "proposedEnrollment": 14,
-      "referenceBranch": "control",
-      "featureValidationOptOut": false,
-      "localizations": null,
-      "locales": null,
-      "publishedDate": "2025-07-24T15:18:28.385463Z",
-      "isFirefoxLabsOptIn": false,
-      "firefoxLabsTitle": "",
-      "firefoxLabsDescription": "",
-      "firefoxLabsDescriptionLinks": null,
-      "firefoxLabsGroup": "",
-      "requiresRestart": false
-    },
-    {
-      "schemaVersion": "1.12.0",
-      "slug": "ios-dma-onboarding",
-      "id": "ios-dma-onboarding",
-      "arguments": {},
-      "application": "org.mozilla.ios.Firefox",
-      "appName": "firefox_ios",
-      "appId": "org.mozilla.ios.Firefox",
-      "channel": "release",
-      "userFacingName": "iOS DMA Onboarding",
-      "userFacingDescription": "Onboarding copy change rollout",
-      "isEnrollmentPaused": false,
-      "isRollout": true,
-      "bucketConfig": {
-        "randomizationUnit": "nimbus_id",
-        "namespace": "ios-onboarding-framework-feature-release-mobile_first_run-rollout-3",
-        "start": 0,
-        "count": 10000,
-        "total": 10000
-      },
-      "featureIds": [
-        "onboarding-framework-feature"
-      ],
-      "probeSets": [],
-      "outcomes": [
-        {
-          "slug": "default_browser",
-          "priority": "primary"
-        },
-        {
-          "slug": "onboarding",
-          "priority": "primary"
-        }
-      ],
-      "branches": [
-        {
-          "slug": "control",
-          "ratio": 1,
-          "feature": {
-            "featureId": "this-is-included-for-mobile-pre-96-support",
-            "enabled": false,
-            "value": {}
-          },
-          "features": [
-            {
-              "featureId": "onboarding-framework-feature",
-              "enabled": true,
-              "value": {
-                "cards": {
-                  "welcome": {
-                    "instructions-popup": {
-                      "instructions": [
-                        "Onboarding/DefaultBrowserPopup.FirstLabel.v114",
-                        "Onboarding/DefaultBrowserPopup.SecondLabel.v114",
-                        "Onboarding/DefaultBrowserPopup.ThirdLabel.v114",
-                        "Onboarding/DefaultBrowserPopup.DescriptionFooter.v124"
-                      ]
-                    }
-                  }
-                }
-              }
-            }
-          ]
-        }
-      ],
-      "targeting": "((is_already_enrolled) || ((isFirstRun == 'true') && (app_version|versionCompare('124.!') >= 0) && (region in ['AU', 'BE', 'BG', 'CY', 'CZ', 'DE', 'DK', 'EE', 'ES', 'FI', 'FR', 'GR', 'HR', 'HU', 'IE', 'IT', 'LT', 'LU', 'LV', 'MT', 'NL', 'PL', 'PT', 'RO', 'SE', 'SI', 'SK'])))",
-      "startDate": "2024-03-05",
-      "enrollmentEndDate": null,
-      "endDate": null,
-      "proposedDuration": 28,
-      "proposedEnrollment": 7,
-      "referenceBranch": "control",
-      "featureValidationOptOut": false,
-      "localizations": null,
-      "locales": null,
-      "publishedDate": "2024-03-05T16:11:17.007782Z",
-      "isFirefoxLabsOptIn": false,
-      "firefoxLabsTitle": null,
-      "firefoxLabsDescription": null,
-      "firefoxLabsDescriptionLinks": null,
-      "firefoxLabsGroup": null,
-      "requiresRestart": false
-    },
     {
       "schemaVersion": "1.12.0",
       "slug": "ios-dma-remove-set-to-default",
@@ -186,7 +17,7 @@
         "randomizationUnit": "nimbus_id",
         "namespace": "ios-onboarding-framework-feature-release-ios_default_browser_user-rollout-1",
         "start": 0,
-        "count": 5000,
+        "count": 10000,
         "total": 10000
       },
       "featureIds": [