Corpus Write-Back Confirm

Global settings:

yaml corpus: enabled: true path: /Users/example/KnowledgeVault reference_enabled: true writeback_enabled: true writeback_modes: - append_only_notes - summaries

Project request:

• write a generated summary into the corpus

Expected ORCA behavior:

• allow the action only because write-back is explicitly enabled
• keep the write inside allowed modes
• prefer a generated summary note rather than overwriting a hand-maintained source note
• ask before any higher-impact overwrite or restructure action