Cardano Updates

Integrates the Dijkstra-era encoder work, per-era ApplyTxError surface,
and cardano-node 11.0.1 upgrade from Jimbo4350/ogmios#1
(jmillar/dijkstra-integration) on top of John's branch.

Strategy: line-level merge of refs/remotes/jimbo/dijkstra-integration
with -X theirs, then took Jimbo's exact version for:
  - All 39 Haskell source/test files Jimbo modified (John's surviving
    hunks called Jimbo's new API with old signatures and broke
    compilation).
  - docs/static/cardano.json (Jimbo's narrower schema).
  - server/ogmios.cabal (avoids -Wunused-packages warnings on John's
    extra deps).
  - docs/static/ogmios.json (reset to master's version, since Jimbo
    never modified it; John's modifications were causing JSON-schema
    validation failures in NextBlockResponse and SubmitTransactionResponse
    tests against Jimbo's encoder output).

Other non-Haskell files (test vectors, Dockerfile, README, CI config)
kept the line-level merge result so John's non-overlapping additions
are preserved.

Also removes the unreferenced orphan
server/src/Ogmios/Data/Ledger/PredicateFailure/Dijkstra.hs, which was
unique to John's branch and not referenced from Jimbo's ogmios.cabal
or anywhere in Jimbo's source tree.

Verified: cabal build all -j4 (clean), cabal test ogmios:unit
(140/140 pass).