Refocus project on pure server migration

[adrian207]

Summary

• replace the Active Directory oriented documentation with a server-migration focussed overview, architecture, operations, and infrastructure guide
• rebuild the Ansible automation into server discovery, replication, cutover, validation, and rollback roles with updated playbooks, inventory, and AWX templates
• rework Terraform examples and helper scripts into multi-cloud landing zones and add a lean validation-oriented test suite

Testing

• not run (not requested)

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https://chatgpt.com/codex/tasks/task_e_68fbd8a981dc832584c171afa7457463

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Copy replication logs using loop results instead of nonexistent stdout

The rsync/robocopy tasks register their results while looping over replication_sources, so the registered dictionaries only expose results[*].stdout and do not have a top-level stdout. The final "Store replication log" task concatenates rsync_result.stdout and robocopy_result.stdout, which raises 'dict object' has no attribute 'stdout' the first time replication runs and the copy task executes. This breaks the playbook even though the replication itself may have succeeded. Build the log content from rsync_result.results and robocopy_result.results (e.g. joining each item’s stdout) before writing the file.

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