Cardano Updates

Per review: the generated view function now binds the constructor's
arguments with an explicit list pattern

  \case args_ of { [a0, a1, ...] -> Just (decode a0, decode a1, ...); _ -> Nothing }

instead of indexing with head/(tail^n). The generated code is now total, so
the AsData activation test drops -Wno-x-partial entirely.

Co-Authored-By: Claude Opus 4.8 <[email protected]>

Per review: emit 'pattern Con :: t0 -> ... -> T a b' signatures alongside the
generated pattern synonyms, so user modules no longer need
-Wno-missing-pattern-synonym-signatures (dropped from the activation test).

Co-Authored-By: Claude Opus 4.8 <[email protected]>

The info banner sat inside the genesis() function body, so it fired once per `wb genesis <op>` dispatch

Era was previously inferred from .era inside profile.json. Promote it to a first-class workbench-level input.

cardano-profile recognises the pparamsEpoch values that target PV 11 and adds a dijkstra zero stub and a v11-preview overlay so profiles can opt in.

Remove the "genesis spec" workbench command that was used for `create-testnet-data --spec-*` and instead use what cardano-profile provides.

The profile may have null "conway" or "dijkstra" genesis fields, but the node still needs valid files. Use a "zero" genesis in those cases.

Based on a mainnet db-sync and mainnet genesis files, reconstruct the timeline without baking in cardano-profile-specific assumptions.

Going forward, the only way to inject cost models with any number of parameters is through Alonzo genesis "extraConfig" field.

- Structure: cost models are separated from the rest of the parameters.
- Consistency: Shelley genesis is the full object, not only the "protocolParams" field.
- Consistency: cost models are an object everywhere, no arrays.
- Cost model names are updated.

These cost models were removed when the node started accepting only what mainnet shipped with.

The "ripper" backend assembles a run's genesis by combining:
- a cached **dataset**: UTXO, delegators, DReps, pool/staking keys
- a cached **protocol**: everything else

The existing "jq" backend stays as the default

Updated the maximum staging time for CertRB from 120 seconds to 30 seconds to improve responsiveness and avoid block fetch timeouts.

We can verify the cert directly and don't need to go through the HFC for that.

- remove previous `messages_parts/signed_entity_type.rs`
- rename `new` file with previous name
- adapt code

Signed-off-by: Sasha Bogicevic <[email protected]>

Signed-off-by: Akhil Repala <[email protected]>

AI-assisted development was filed under Integrations next to autonomous
on-chain agents, but it's a cross-cutting dev practice, not an integration.
Move it into Start Building as a setup step so developers meet it while
setting up their environment. The Integrations AI category is now just
on-chain agents. Repoint inbound links and add a callout on Start Here.

Repurpose the quickstart card from the meshjs scaffold command to the
Cardano Dev Skills install: a Claude Code badge, the plugin install
command (no shell prompt, since it's a slash command), and a button to
the Set up your AI assistant page in Module 2.