add .gitignore, clean up generated files from node_modules

Remove from tracking:
- dist/ (build output, regenerated by bun run build.ts)
- node_modules/.pnpm/ (pnpm internal store, 247MB)
- node_modules/.bin/ (executable symlinks)
- node_modules/.ignored/ and .ignored_* (source-map dirs moved aside by pnpm)
- 100 pnpm-installed package symlinks (regenerated by pnpm install)

Keep in tracking:
- Private package stubs not on npm (color-diff-napi, modifiers-napi,
  @ant/claude-for-chrome-mcp, @anthropic-ai/mcpb, @anthropic-ai/sandbox-runtime)
- Source-map extracted packages not installed by pnpm (@grpc/*, @protobufjs/*, etc.)

claude-code-source/node_modules/@azure/msal-node/dist/config/Configuration.mjs

@@ -1,114 +0,0 @@
-/*! @azure/msal-node v3.8.1 2025-10-29 */
-'use strict';
-import { Constants, LogLevel, AzureCloudInstance, ProtocolMode } from '@azure/msal-common/node';
-import { HttpClient } from '../network/HttpClient.mjs';
-import { ManagedIdentityId } from './ManagedIdentityId.mjs';
-import { NodeAuthError } from '../error/NodeAuthError.mjs';
-
-/*
- * Copyright (c) Microsoft Corporation. All rights reserved.
- * Licensed under the MIT License.
- */
-const DEFAULT_AUTH_OPTIONS = {
-    clientId: Constants.EMPTY_STRING,
-    authority: Constants.DEFAULT_AUTHORITY,
-    clientSecret: Constants.EMPTY_STRING,
-    clientAssertion: Constants.EMPTY_STRING,
-    clientCertificate: {
-        thumbprint: Constants.EMPTY_STRING,
-        thumbprintSha256: Constants.EMPTY_STRING,
-        privateKey: Constants.EMPTY_STRING,
-        x5c: Constants.EMPTY_STRING,
-    },
-    knownAuthorities: [],
-    cloudDiscoveryMetadata: Constants.EMPTY_STRING,
-    authorityMetadata: Constants.EMPTY_STRING,
-    clientCapabilities: [],
-    protocolMode: ProtocolMode.AAD,
-    azureCloudOptions: {
-        azureCloudInstance: AzureCloudInstance.None,
-        tenant: Constants.EMPTY_STRING,
-    },
-    skipAuthorityMetadataCache: false,
-    encodeExtraQueryParams: false,
-};
-const DEFAULT_CACHE_OPTIONS = {
-    claimsBasedCachingEnabled: false,
-};
-const DEFAULT_LOGGER_OPTIONS = {
-    loggerCallback: () => {
-        // allow users to not set logger call back
-    },
-    piiLoggingEnabled: false,
-    logLevel: LogLevel.Info,
-};
-const DEFAULT_SYSTEM_OPTIONS = {
-    loggerOptions: DEFAULT_LOGGER_OPTIONS,
-    networkClient: new HttpClient(),
-    proxyUrl: Constants.EMPTY_STRING,
-    customAgentOptions: {},
-    disableInternalRetries: false,
-};
-const DEFAULT_TELEMETRY_OPTIONS = {
-    application: {
-        appName: Constants.EMPTY_STRING,
-        appVersion: Constants.EMPTY_STRING,
-    },
-};
-/**
- * Sets the default options when not explicitly configured from app developer
- *
- * @param auth - Authentication options
- * @param cache - Cache options
- * @param system - System options
- * @param telemetry - Telemetry options
- *
- * @returns Configuration
- * @internal
- */
-function buildAppConfiguration({ auth, broker, cache, system, telemetry, }) {
-    const systemOptions = {
-        ...DEFAULT_SYSTEM_OPTIONS,
-        networkClient: new HttpClient(system?.proxyUrl, system?.customAgentOptions),
-        loggerOptions: system?.loggerOptions || DEFAULT_LOGGER_OPTIONS,
-        disableInternalRetries: system?.disableInternalRetries || false,
-    };
-    // if client certificate was provided, ensure that at least one of the SHA-1 or SHA-256 thumbprints were provided
-    if (!!auth.clientCertificate &&
-        !!!auth.clientCertificate.thumbprint &&
-        !!!auth.clientCertificate.thumbprintSha256) {
-        throw NodeAuthError.createStateNotFoundError();
-    }
-    return {
-        auth: { ...DEFAULT_AUTH_OPTIONS, ...auth },
-        broker: { ...broker },
-        cache: { ...DEFAULT_CACHE_OPTIONS, ...cache },
-        system: { ...systemOptions, ...system },
-        telemetry: { ...DEFAULT_TELEMETRY_OPTIONS, ...telemetry },
-    };
-}
-function buildManagedIdentityConfiguration({ clientCapabilities, managedIdentityIdParams, system, }) {
-    const managedIdentityId = new ManagedIdentityId(managedIdentityIdParams);
-    const loggerOptions = system?.loggerOptions || DEFAULT_LOGGER_OPTIONS;
-    let networkClient;
-    // use developer provided network client if passed in
-    if (system?.networkClient) {
-        networkClient = system.networkClient;
-        // otherwise, create a new one
-    }
-    else {
-        networkClient = new HttpClient(system?.proxyUrl, system?.customAgentOptions);
-    }
-    return {
-        clientCapabilities: clientCapabilities || [],
-        managedIdentityId: managedIdentityId,
-        system: {
-            loggerOptions,
-            networkClient,
-        },
-        disableInternalRetries: system?.disableInternalRetries || false,
-    };
-}
-
-export { buildAppConfiguration, buildManagedIdentityConfiguration };
-//# sourceMappingURL=Configuration.mjs.map