docs: clarify mtm-ddwipe safety and prompt conventions

.continue/rules/project.md

@@ -19,6 +19,10 @@ description: mtm-ddwipe project conventions
 - Keep short, explicit confirmation prompts before destructive operations.
 - Keep error and help messages short, clear, and in English.
 - Keep help text concise and usage-first.
+- When changing `mtm-ddwipe`, keep destructive safeguards strict and explicit.
+- If adding non-interactive support, make it an opt-in safety flag.
+- Keep device identification prompts clear and specific.
+- Preserve the fallback wipe flow unless the change is intentionally about wiping behavior.
 
 # Project identity
 - Main script: `mtm-ddwipe`