feat(api): add Cognito user pools to the cloud explorer

Adds a userpools catalog entry, schema and AwsUserPoolsAdapter, verified
against Floci core:

- list/get/create/delete user pools; create can set email or username
  sign-in, a relaxed password policy for local test users, and a public
  app client (on by default) whose id is surfaced in the pool metadata
- users as the pool's child items: list (paged), get, create and delete;
  passwords are set permanent by default so users can sign in at once
- map Cognito's HTTP-400 error names (UserNotFoundException,
  UsernameExistsException, AliasExistsException, InvalidPasswordException)
- link Floci's cognito-idp service to the new page on the diagnostics page

packages/api/src/adapter-aws/awsErrors.ts

@@ -58,6 +58,8 @@ const CONFLICT_NAMES = new Set([
     'ConcurrentModificationException',
     'IncorrectState',
     'DeleteConflictException',
+    'UsernameExistsException',
+    'AliasExistsException',
 ])
 
 const ACCESS_DENIED_NAMES = new Set([
@@ -90,6 +92,7 @@ const VALIDATION_NAMES = new Set([
     'InvalidBucketName',
     'InvalidArgumentException',
     'InvalidParameterException',
+    'InvalidPasswordException',
 ])
 
 const NOT_FOUND_NAMES = new Set([
@@ -119,6 +122,7 @@ const NOT_FOUND_NAMES = new Set([
     'InvalidSubnetID.NotFound',
     'InvalidGroupId.NotFound',
     'InvalidAMIID.NotFound',
+    'UserNotFoundException',
 ])
 
 const NOT_IMPLEMENTED_NAMES = new Set([