doc: add missing copyright headers #34106

1. 
   fanquake commented at 5:00 pm on December 18, 2025: member

   Takes care of some queries from #34084.
2. contrib: output copyright in generate-seeds.py 68a7cb8f8b
3. doc: add missing copyright headers aeb7ccb937
4. DrahtBot added the label Docs on Dec 18, 2025
5. 
   DrahtBot commented at 5:00 pm on December 18, 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/34106.

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6. rkrux approved
7. 
   rkrux commented at 12:12 pm on December 19, 2025: contributor

   tACK aeb7ccb937bb49575063cf4bd6cc1ff166390fa9

   Ran the generate-seeds.py script and checked for the copyright header.

8. 
   janb84 commented at 1:55 pm on December 19, 2025: contributor

   ACK aeb7ccb937bb49575063cf4bd6cc1ff166390fa9

   trivial PR to add some missing copyright notices. LGTM.

9. fanquake merged this on Dec 19, 2025
10. fanquake closed this on Dec 19, 2025

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11. fanquake deleted the branch on Dec 19, 2025

Contributors
fanquake DrahtBot rkrux janb84

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