Service environment (#23443)

* fix fileutils.TestFindFile on MacOS

* introduce model.ExternalServiceEnvironment

* pick license public key from external service env

* pick Stripe public key from external service env

* pick Rudder key from external service env

* configure Sentry DSN from external service env

* always log external_service_environment, Unsetenv

* clear faked BuildEnv, improve logging

* strip out unset GOTAGS

* fix Sentry tests

* simplify to just ServiceEnvironment

* relocate ServiceEnvironment in client config

* initialize CWS URLs based on service environment

* unset rudder key for boards dev

* harden service environment to avoid accidental production

* fix TestSentry again

* fix DEFAULT -> ENTERPRISE

* s/dev/test when naming playbooks rudder key

* simplify boards rudder key switch

* use uniform rudderKey variable names

* retain compatibility with existing pipeline

* reduce to just production/test

* unit test with valid test license

* simplify Playbooks telemetry initialization

* restore dev service environment

* emit ServiceEnvironment when running e2e tests

webapp/platform/types/src/config.ts

@@ -203,6 +203,7 @@ export type ClientConfig = {
     PersistentNotificationIntervalMinutes: string;
     AllowPersistentNotificationsForGuests: string;
     DelayChannelAutocomplete: 'true' | 'false';
+    ServiceEnvironment: string;
 };
 
 export type License = {
@@ -948,3 +949,9 @@ export enum CollapsedThreads {
     DEFAULT_OFF = 'default_off',
     ALWAYS_ON = 'always_on',
 }
+
+export enum ServiceEnvironment {
+    PRODUCTION = 'production',
+    TEST = 'test',
+    DEV = 'dev',
+}