feat(amazonq): Enable implicit @workspace context for Amzn users #5856

## Problem
The chat workspace context requires user to manually input `@workspace`
in the chat window, but when user do not have such prompt, workspace
context can still be useful, we want to always send the relevant
document and let service decide when to utilize it.

## Solution

Enable implicit `@workspace` context for Amzn users. For these users, if
they do not have `@workspace` in the chat prompt, the
relevantTextDocument is still added to the chat API. This will be AB
tested

Also remove the outdated data collection experiment.

packages/amazonq/.changes/next-release/Feature-93485fee-05c0-4dc9-abde-9072590cbd45.json

@@ -0,0 +1,4 @@
+{
+	"type": "Feature",
+	"description": "Enable default `@workspace` context of Amazon Q chat for certain users"
+}

packages/core/src/codewhispererChat/controllers/chat/controller.ts

@@ -47,11 +47,11 @@ import { randomUUID } from '../../../shared/crypto'
 import { LspController } from '../../../amazonq/lsp/lspController'
 import { CodeWhispererSettings } from '../../../codewhisperer/util/codewhispererSettings'
 import { getSelectedCustomization } from '../../../codewhisperer/util/customizationUtil'
-import { FeatureConfigProvider } from '../../../shared/featureConfig'
 import { getHttpStatusCode, AwsClientResponseError } from '../../../shared/errors'
 import { uiEventRecorder } from '../../../amazonq/util/eventRecorder'
-import { globals } from '../../../shared'
+import { globals, waitUntil } from '../../../shared'
 import { telemetry } from '../../../shared/telemetry'
+import { Auth } from '../../../auth'
 import { isSsoConnection } from '../../../auth/connection'
 
 export interface ChatControllerMessagePublishers {
@@ -633,17 +633,23 @@ export class ChatController {
                     return
                 }
             }
-            // if user does not have @workspace in the prompt, but user is in the data collection group
-            // If the user is in the data collection group but turned off local index to opt-out, do not collect data.
-            // TODO: Remove this entire block of code in one month as requested
+            // if user does not have @workspace in the prompt, but user is Amazon internal
+            // add project context by default
             else if (
-                FeatureConfigProvider.instance.isAmznDataCollectionGroup() &&
+                Auth.instance.isInternalAmazonUser() &&
                 !LspController.instance.isIndexingInProgress() &&
                 CodeWhispererSettings.instance.isLocalIndexEnabled()
             ) {
-                getLogger().info(`amazonq: User is in data collection group`)
                 const start = performance.now()
-                triggerPayload.relevantTextDocuments = await LspController.instance.query(triggerPayload.message)
+                triggerPayload.relevantTextDocuments = await waitUntil(
+                    async function () {
+                        if (triggerPayload.message) {
+                            return await LspController.instance.query(triggerPayload.message)
+                        }
+                        return []
+                    },
+                    { timeout: 500, interval: 200, truthy: false }
+                )
                 triggerPayload.projectContextQueryLatencyMs = performance.now() - start
             }
         }

packages/core/src/shared/featureConfig.ts

@@ -18,6 +18,7 @@ import globals from './extensionGlobals'
 import { getClientId, getOperatingSystem } from './telemetry/util'
 import { extensionVersion } from './vscode/env'
 import { telemetry } from './telemetry'
+import { Auth } from '../auth'
 
 export class FeatureContext {
     constructor(
@@ -51,8 +52,6 @@ export class FeatureConfigProvider {
 
     static #instance: FeatureConfigProvider
 
-    private _isDataCollectionGroup = false
-
     constructor() {
         this.fetchFeatureConfigs().catch((e) => {
             getLogger().error('fetchFeatureConfigs failed: %s', (e as Error).message)
@@ -65,10 +64,6 @@ export class FeatureConfigProvider {
         return (this.#instance ??= new this())
     }
 
-    isAmznDataCollectionGroup(): boolean {
-        return this._isDataCollectionGroup
-    }
-
     isNewProjectContextGroup(): boolean {
         return this.featureConfigs.get(Features.projectContextFeature)?.variation === 'TREATMENT'
     }
@@ -145,11 +140,8 @@ export class FeatureConfigProvider {
                     }
                 }
             }
-
-            const dataCollectionValue = this.featureConfigs.get(Features.dataCollectionFeature)?.value.stringValue
-            if (dataCollectionValue === 'data-collection') {
-                this._isDataCollectionGroup = true
-                // Enable local workspace index by default, for Amzn users.
+            if (Auth.instance.isInternalAmazonUser()) {
+                // Enable local workspace index by default only once, for Amzn users.
                 const isSet = globals.globalState.get<boolean>('aws.amazonq.workspaceIndexToggleOn') || false
                 if (!isSet) {
                     await CodeWhispererSettings.instance.enableLocalIndex()