feat(registry-canister): add defaults for RegistryCanisterInitPayload #7378
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### Motivation - Remove derive(Default) to enable explicit per-field defaults for new init payload fields. ### Solution - Add explicit Default for RegistryCanisterInitPayload. - Add default_false() and default_empty_vec() helpers and apply serde(default) to new fields. - Keep existing fields and behavior; initialization now explicit. ### Details - This avoids unintended Default propagation and clarifies initial state. - No runtime logic changes beyond initialization defaults.
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Update
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non-breaking). -
Are there BREAKING changes?
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Is a data migration needed?
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Reference(s)
For a more comprehensive checklist, see here.
GOVERNANCE_CHECKLIST_REMINDER_DEDUP
Motivation
RegistryCanisterInitPayloadSolution
Details