Refactor mk/dev/ionosmail-on-retry-config into atomic commits

docs/REFACTORING_195c82c1e.md

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+# Refactoring Plan: Split Commit 195c82c1e
+
+## Original Large Commit
+**195c82c1e** - "IONOS(ionos-mail): IonosAccountsController: add retry logic and skip connectivity test for IONOS accounts"
+- 18 files changed, 2018 insertions(+), 186 deletions(-)
+
+## Refactored Into 7 Atomic Commits
+
+The large commit has been split into the following logical, atomic commits on branch `refactor-work`:
+
+### 1. DTO Enhancements (d6edd817c)
+**IONOS(ionos-mail): add withPassword method to DTO classes**
+- Added immutable password update methods to `MailAccountConfig` and `MailServerConfig`
+- Files: 4 changed, 75 insertions(+)
+
+### 2. ConflictResolutionResult (4629d4fdd)
+**IONOS(ionos-mail): add ConflictResolutionResult class for retry logic**
+- Result object for three scenarios: retry, noExistingAccount, emailMismatch
+- Files: 2 changed, 239 insertions(+)
+
+### 3. IonosAccountConflictResolver (2407ddce2)
+**IONOS(ionos-mail): add IonosAccountConflictResolver for handling account conflicts**
+- Service to handle conflict resolution when account creation encounters existing accounts
+- Files: 2 changed, 256 insertions(+)
+
+### 4. IonosAccountCreationService (80d9d40de)
+**IONOS(ionos-mail): add IonosAccountCreationService for unified account creation**
+- Centralized service for creating/updating IONOS mail accounts
+- Handles retry logic with conflict resolution
+- Files: 2 changed, 680 insertions(+)
+
+### 5. Service Enhancements (3a49f1cf8)
+**IONOS(ionos-mail): enhance service methods for account retrieval and retry logic**
+- Enhanced IonosMailService with getAccountConfigForUser, resetAppPassword, getMailDomain
+- Updated IonosConfigService with APP_NAME constant
+- Updated IonosMailConfigService for local/remote account state handling
+- Files: 6 changed, 637 insertions(+), 26 deletions(-)
+
+### 6. Controller Updates (6e08c06b8)
+**IONOS(ionos-mail): update IonosAccountsController to use IonosAccountCreationService**
+- Refactored controller to delegate to service layer
+- Files: 2 changed, 131 insertions(+), 160 deletions(-)
+
+### 7. CLI Command (80fcc4331)
+**IONOS(ionos-mail): add 'mail:ionos:create' command to create IONOS mail accounts**
+- Preserved from original commit 80f04b267
+- Files: 3 changed, 408 insertions(+)
+
+## Benefits
+- Better separation of concerns
+- Easier code review
+- Clearer git history
+- Better testability
+- Easier debugging
+
+## Branch Information
+- Refactored commits available on: `refactor-work`
+- Base commit: 8e9276786 (commit before 195c82c1e)