chore: add unleashAI feature flag (#8399)

https://linear.app/unleash/issue/2-2773/add-unleashai-feature-flag

Adds the `unleashAI` feature flag, the first step in the Unleash AI
experiment.

frontend/src/interfaces/uiConfig.ts

@@ -90,6 +90,7 @@ export type UiFlags = {
     eventTimeline?: boolean;
     personalDashboardUI?: boolean;
     purchaseAdditionalEnvironments?: boolean;
+    unleashAI?: boolean;
 };
 
 export interface IVersionInfo {

src/lib/types/experimental.ts

@@ -61,7 +61,8 @@ export type IFlagKey =
     | 'eventTimeline'
     | 'personalDashboardUI'
     | 'trackLifecycleMetrics'
-    | 'purchaseAdditionalEnvironments';
+    | 'purchaseAdditionalEnvironments'
+    | 'unleashAI';
 
 export type IFlags = Partial<{ [key in IFlagKey]: boolean | Variant }>;
 
@@ -302,6 +303,10 @@ const flags: IFlags = {
         process.env.UNLEASH_EXPERIMENTAL_PURCHASE_ADDITIONAL_ENVIRONMENTS,
         false,
     ),
+    unleashAI: parseEnvVarBoolean(
+        process.env.UNLEASH_EXPERIMENTAL_UNLEASH_AI,
+        false,
+    ),
 };
 
 export const defaultExperimentalOptions: IExperimentalOptions = {

src/server-dev.ts

@@ -56,6 +56,7 @@ process.nextTick(async () => {
                         onboardingUI: true,
                         personalDashboardUI: true,
                         purchaseAdditionalEnvironments: true,
+                        unleashAI: true,
                     },
                 },
                 authentication: {