The pending-operation model assumed a call already exists on-chain
(Multisig.Multisigs entry with a Timepoint) before it could be
reviewed or signed. A signatory who is the first to see a brand-new
call - reachable via the deep link before anyone has submitted
anything - hit "operation not found" and the screen refused to open,
even though the deep link already carried the call's data in its
callData param (previously decoded only to format Executed/Rejected
dialog text, then discarded for the Active case that needed it).
- PendingMultisigOperation.timePoint/depositor are now nullable to
represent "not yet submitted"; composeMultisigAsMulti's
maybeTimePoint parameter already accepted null (used for ordinary
first-time multisig-origin submissions via MultisigSigner), so the
pallet-call layer needed no changes.
- New PendingMultisigOperation.notYetSubmitted(...) factory and
MultisigOperationDetailsInteractor.buildNotYetSubmittedOperation()
build a synthetic operation from the deep link's callData, hash
verified against the URL's callHash rather than trusted blindly.
- OperationIsStillPendingValidation now skips its on-chain
"still pending" check for a not-yet-submitted operation, since it
would otherwise always fail and block the very first submission.
- MultisigOperationPayload carries the callData through so both the
details screen and the full-details screen (independently reachable
via "Call Details", since that button is available whenever call
data is known) can construct the synthetic operation.