doc: Fix ‘getdescriptoractivity’ RPCHelpMan #33119

1. 
   Christewart commented at 9:35 pm on August 1, 2025: contributor

   Fixes bug in getdescriptoractivity RPC help manual.

   Here is the line that pushes spend_vin field, there is no spend_vout json field.

   https://github.com/bitcoin/bitcoin/blob/master/src/rpc/blockchain.cpp#L2757

2. doc: Fix 'getdescriptoractivity' RPCHelpMan b17918d667
3. DrahtBot added the label Docs on Aug 1, 2025
4. 
   DrahtBot commented at 9:35 pm on August 1, 2025: contributor

   The following sections might be updated with supplementary metadata relevant to reviewers and maintainers.

   Code Coverage & Benchmarks

   For details see: https://corecheck.dev/bitcoin/bitcoin/pulls/33119.

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   Type	Reviewers
   ACK	pablomartin4btc
   Concept ACK	Sammie05

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5. 
   pablomartin4btc commented at 11:39 pm on August 1, 2025: member

   cr ACK b17918d66743d6ee1cd2df7fd0a6c05dc87f71d8

   Maybe you can add the field validation in rpc_getdescriptoractivity.py (ie test_receive_then_spend).

6. 
   Sammie05 commented at 3:09 am on August 2, 2025: none

   Thanks for the fix, As mentioned above, adding a test for this in rpc_getdescriptoractivity.py would make the PR even more robust. ACK from me for this doc update

Contributors
Christewart DrahtBot pablomartin4btc Sammie05

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