feat(coding-agent): add settings http proxy

closes #5790

packages/coding-agent/src/core/http-dispatcher.ts

@@ -36,6 +36,13 @@ export function formatHttpIdleTimeoutMs(timeoutMs: number): string {
 	return `${timeoutMs / 1000} sec`;
 }
 
+export function applyHttpProxySettings(httpProxy: string | undefined): void {
+	const proxy = httpProxy?.trim();
+	if (!proxy) return;
+	process.env.HTTP_PROXY ??= proxy;
+	process.env.HTTPS_PROXY ??= proxy;
+}
+
 export function configureHttpDispatcher(timeoutMs: number = DEFAULT_HTTP_IDLE_TIMEOUT_MS): void {
 	const normalizedTimeoutMs = parseHttpIdleTimeoutMs(timeoutMs);
 	if (normalizedTimeoutMs === undefined) {

packages/coding-agent/src/core/settings-manager.ts

@@ -117,6 +117,7 @@ export interface Settings {
 	markdown?: MarkdownSettings;
 	warnings?: WarningSettings;
 	sessionDir?: string; // Custom session storage directory (same format as --session-dir CLI flag)
+	httpProxy?: string; // Proxy URL applied as HTTP_PROXY and HTTPS_PROXY for Pi-managed HTTP clients
 	httpIdleTimeoutMs?: number; // HTTP header/body idle timeout in milliseconds; 0 disables it
 	websocketConnectTimeoutMs?: number; // WebSocket connect/open handshake timeout in milliseconds; 0 disables it
 }

packages/coding-agent/src/main.ts

@@ -26,7 +26,7 @@ import { formatNoModelsAvailableMessage } from "./core/auth-guidance.ts";
 import { AuthStorage } from "./core/auth-storage.ts";
 import { exportFromFile } from "./core/export-html/index.ts";
 import type { ExtensionFactory } from "./core/extensions/types.ts";
-import { configureHttpDispatcher } from "./core/http-dispatcher.ts";
+import { applyHttpProxySettings, configureHttpDispatcher } from "./core/http-dispatcher.ts";
 import type { ModelRegistry } from "./core/model-registry.ts";
 import { resolveCliModel, resolveModelScope, type ScopedModel } from "./core/model-resolver.ts";
 import { restoreStdout, takeOverStdout } from "./core/output-guard.ts";
@@ -466,6 +466,12 @@ export async function main(args: string[], options?: MainOptions) {
 		cleanupWindowsSelfUpdateQuarantine(getPackageDir());
 	}
 
+	const cwd = process.cwd();
+	const agentDir = getAgentDir();
+	const bootstrapSettingsManager = SettingsManager.create(cwd, agentDir, { projectTrusted: false });
+	applyHttpProxySettings(bootstrapSettingsManager.getGlobalSettings().httpProxy);
+	configureHttpDispatcher();
+
 	if (await handlePackageCommand(args, { extensionFactories: options?.extensionFactories })) {
 		const exitCode = process.exitCode ?? 0;
 		if (process.platform === "win32" && exitCode === 0 && args[0] === "update") {
@@ -529,11 +535,9 @@ export async function main(args: string[], options?: MainOptions) {
 	validateSessionIdFlags(parsed);
 
 	// Run migrations (pass cwd for project-local migrations)
-	const { migratedAuthProviders: migratedProviders, deprecationWarnings } = runMigrations(process.cwd());
+	const { migratedAuthProviders: migratedProviders, deprecationWarnings } = runMigrations(cwd);
 	time("runMigrations");
 
-	const cwd = process.cwd();
-	const agentDir = getAgentDir();
 	const startupSettingsManager = SettingsManager.create(cwd, agentDir);
 	reportDiagnostics(collectSettingsDiagnostics(startupSettingsManager, "startup session lookup"));
 
@@ -726,6 +730,7 @@ export async function main(args: string[], options?: MainOptions) {
 	time("createAgentSessionRuntime");
 	const { services, session, modelFallbackMessage } = runtime;
 	const { settingsManager, modelRegistry, resourceLoader } = services;
+	applyHttpProxySettings(settingsManager.getGlobalSettings().httpProxy);
 	configureHttpDispatcher(settingsManager.getHttpIdleTimeoutMs());
 
 	if (parsed.help) {