feat(migrations): add plugin-owned Hermes import

* feat: add migration providers

* feat: offer Hermes migration during onboarding

* feat(hermes): map imported config surfaces

* feat(onboard): require fresh migration imports

* docs(cli): clarify Hermes import coverage

* chore(migrations): rename Hermes importer package

* chore(migrations): rewire Hermes importer id

* fix(migrations): redact migration JSON details

* fix(hermes): use provider runtime for config imports

* test(hermes): cover missing source planning

---------

Co-authored-by: Peter Steinberger <steipete@gmail.com>

test/helpers/plugins/plugin-api.ts

@@ -25,6 +25,7 @@ export function createTestPluginApi(api: TestPluginApiInput = {}): OpenClawPlugi
     registerNodeHostCommand() {},
     registerSecurityAuditCollector() {},
     registerConfigMigration() {},
+    registerMigrationProvider() {},
     registerAutoEnableProbe() {},
     registerProvider() {},
     registerSpeechProvider() {},