Rename VSC override config namespace

Author: zelinms

package.json

@@ -4023,7 +4023,7 @@
 							"experimental"
 						]
 					},
-					"github.copilot.chat.debug.vscModelOverride": {
+					"github.copilot.chat.customization.vscModelOverride": {
 						"type": [
 							"string",
 							"null"
@@ -4036,7 +4036,7 @@
 							"D"
 						],
 						"default": null,
-						"markdownDescription": "%github.copilot.config.debug.vscModelOverride%",
+						"markdownDescription": "%github.copilot.config.customization.vscModelOverride%",
 						"tags": [
 							"advanced",
 							"experimental"

package.nls.json

@@ -355,7 +355,7 @@
 	"github.copilot.config.completionsFetcher": "Sets the fetcher used for the inline completions.",
 	"github.copilot.config.nesFetcher": "Sets the fetcher used for the next edit suggestions.",
 	"github.copilot.config.debug.overrideChatEngine": "Override the chat model. This allows you to test with different models.\n\n**Note**: This is an advanced debugging setting and should not be used while self-hosting as it may lead to a different experience compared to end-users.",
-	"github.copilot.config.debug.vscModelOverride": "Override the hidden VSC model family classification used for prompt routing and capability checks. When set to `A`, `B`, `C`, or `D`, only that family returns `true` and the others return `false`. Set to `null` to use normal detection.",
+	"github.copilot.config.customization.vscModelOverride": "Override the hidden VSC model family classification used for prompt routing and capability checks. When set to `A`, `B`, `C`, or `D`, only that family returns `true` and the others return `false`. Set to `null` to use normal detection.",
 	"github.copilot.config.projectLabels.expanded": "Use the expanded format for project labels in prompts.",
 	"github.copilot.config.projectLabels.chat": "Add project labels in chat requests.",
 	"github.copilot.config.projectLabels.inline": "Add project labels in inline edit requests.",

src/extension/prompt/node/chatMLFetcher.ts

@@ -180,7 +180,7 @@ export class ChatMLFetcherImpl extends AbstractChatMLFetcher {
 			uiKind: ChatLocation.toString(location)
 		});
 
-		const modelOverride = this._configurationService.getConfig(ConfigKey.Advanced.DebugVSCModelOverride);
+		const modelOverride = this._configurationService.getConfig(ConfigKey.Advanced.CustomizationVSCModelOverride);
 		const customMetadata = modelOverride
 			? {
 				...opts.customMetadata,

src/extension/prompts/node/agent/promptRegistry.ts

@@ -107,12 +107,12 @@ export const PromptRegistry = new class {
 		instantiationService: IInstantiationService,
 		endpoint: IChatEndpoint,
 	): Promise<AgentPromptCustomizations> {
-		const modelOverride = instantiationService.invokeFunction(accessor => accessor.get(IConfigurationService).getConfig(ConfigKey.Advanced.DebugVSCModelOverride));
+		const modelOverride = instantiationService.invokeFunction(accessor => accessor.get(IConfigurationService).getConfig(ConfigKey.Advanced.CustomizationVSCModelOverride));
 		const promptResolverCtor = await this.getPromptResolver(endpoint, modelOverride);
 		const agentPrompt = promptResolverCtor ? instantiationService.createInstance(promptResolverCtor) : undefined;
 
 		if (modelOverride) {
-			instantiationService.invokeFunction(accessor => accessor.get(ILogService).info(`[PromptRegistry] Using debug VSC model override '${modelOverride}' with resolver '${promptResolverCtor?.name ?? 'default'}' for endpoint family '${endpoint.family}'`));
+			instantiationService.invokeFunction(accessor => accessor.get(ILogService).info(`[PromptRegistry] Using VSC model override '${modelOverride}' with resolver '${promptResolverCtor?.name ?? 'default'}' for endpoint family '${endpoint.family}'`));
 		}
 
 		return {

src/platform/configuration/common/configurationService.ts

@@ -689,7 +689,7 @@ export namespace ConfigKey {
 		export const DebugGitHubAuthFailWith = defineSetting<'NotAuthorized' | 'RequestFailed' | 'ParseFailed' | 'HTTP401' | 'RateLimited' | 'GitHubLoginFailed' | null>('chat.debug.githubAuthFailWith', ConfigType.Simple, null);
 
 		/** Override which VSC model variant is active. Only one can be true; when set, the others return false. */
-		export const DebugVSCModelOverride = defineSetting<'A' | 'B' | 'C' | 'D' | null>('chat.debug.vscModelOverride', ConfigType.Simple, null, vNullable(vEnum('A', 'B', 'C', 'D')));
+		export const CustomizationVSCModelOverride = defineSetting<'A' | 'B' | 'C' | 'D' | null>('chat.customization.vscModelOverride', ConfigType.Simple, null, vNullable(vEnum('A', 'B', 'C', 'D')));
 
 		// Agent debug logging settings — fileLogging.enabled is the canonical toggle
 		/** @deprecated Use ChatDebugFileLogging instead. Kept during experiment transition. */