@W-20893788 Complete MRT API coverage with reorganized command structure (#59)

* updated mrt commands and b2c target types

* normalize cloud origin config loading from dw.json source

* topic realignment

* refactoring bundle topics and descriptions

* mrt docs update

* fix: update listBundles test to use new API signature and fix lint errors

- Update push.test.ts to use the new listBundles({projectSlug}, auth) signature
- Change import style in download.ts to use named imports per eslint rules

* chore: add changeset for MRT command reorganization

* Add tests for new MRT commands

- Add tests for bundle commands (deploy, list, history, download)
- Add tests for project commands (list, get, create, update, delete)
- Add tests for project member commands (list, add)
- Add tests for project notification commands (list)
- Add tests for env commands (get, list, update)
- Add tests for user commands (profile, api-key)
- Add tests for org commands (list, b2c)
- Remove obsolete mrt/push.test.ts (command restructured to bundle/deploy)

Tests follow the patterns introduced in main branch using
createIsolatedConfigHooks, stubParse, and sinon for mocking.

Author: clavery

.changeset/mrt-command-reorganization.md

@@ -0,0 +1,5 @@
+---
+'@salesforce/b2c-cli': minor
+---
+
+Reorganizes MRT commands by scope: project-level commands under `mrt project`, environment-level under `mrt env`, and deployment commands under `mrt bundle`. The `mrt bundle download` command now downloads files by default instead of just printing the URL.

.changeset/mrt-complete-coverage.md

@@ -0,0 +1,6 @@
+---
+'@salesforce/b2c-cli': minor
+'@salesforce/b2c-tooling-sdk': minor
+---
+
+Adds complete MRT CLI coverage organized by scope: `mrt project` (CRUD, members, notifications), `mrt env` (CRUD, variables, redirects, access-control, cache invalidation, B2C connections), `mrt bundle` (deploy, list, history, download), `mrt org` (list, B2C instances), and `mrt user` (profile, API key, email preferences).

.changeset/mrt-push-to-bundle.md

@@ -0,0 +1,5 @@
+---
+'@salesforce/b2c-cli': minor
+---
+
+Replaces `mrt push` with `mrt bundle deploy`. The new command supports both pushing local builds and deploying existing bundles by ID.