Cardano Updates

The folder structure never caught up with the curriculum. Readers saw a
clean module path in the sidebar while the files still sat in legacy
buckets (learn/, value/, foundations/, get-started/) next to build/ and
native-tokens/. Contributors had to hold two mental models.

Collapse everything into the structure readers actually navigate:

- docs/developers/ holds the developer sidebar: a curriculum/ tree with
  numbered module folders (01-fundamentals through 07-production) plus an
  integrations/ section. Numeric prefixes order the tree; Docusaurus
  strips them so URLs stay clean.
- docs/operators/ holds the stake pool content (was operate-a-stake-pool/)
  plus a security/ folder for the air-gap and secure-workflow guides.
- community/ and contribute/ stay top-level as cross-cutting meta.

No get-started/, infrastructure/, learn/, build/, value/, foundations/,
or first-steps/ buckets survive. Shared node pages live once under
Module 7 and the operators sidebar cross-links them.

Mechanics: ~260 file moves, every internal /docs/ link rewritten by
prefix, sidebars.js re-keyed (networkSidebar is now operatorsSidebar),
redirect targets repointed so old prod URLs resolve straight to the
final location, and the llms path-fix script and includeOrder globs
updated. Old prod URLs keep working through redirects; curriculum-spine
URLs were never published so they need none.

The developer sidebar groups the seven modules under a Curriculum
category so the navigation mirrors the developers/curriculum/ tree, with
Start Here on top and Integrations/Community/Contributing alongside.

Also drops the two orphaned cardano-wallet REST-server pages. They sat in
no sidebar, taught the legacy run-your-own-wallet-backend approach the
curriculum already covers through SDKs and API providers, and only the
payments-listening guide referenced them (now pointed at the upstream repo).

Bumps [github.com/blinklabs-io/adder](https://github.com/blinklabs-io/adder) from 0.39.1 to 0.41.0.
- [Release notes](https://github.com/blinklabs-io/adder/releases)
- [Commits](https://github.com/blinklabs-io/adder/compare/v0.39.1...v0.41.0)

---
updated-dependencies:
- dependency-name: github.com/blinklabs-io/adder
  dependency-version: 0.41.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

The batteries-included PR (#944) described mithril as "unsupported on
Windows MSVC", but the green `--all-features` Windows CI check shows its
GMP/blst C-crypto crates build and statically link there. Mithril is opt-in
because it's a heavy C toolchain (large binary + long build), not for
portability reasons.

Also fix the kafka note: it now pulls a vendored OpenSSL build (wired to the
`kafka` feature), so opt-in builds need a C compiler + Perl rather than the
platform's system OpenSSL dev libraries. No behaviour change.

Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>

The Governance section duplicated cardano.org/governance, which is the
participant hub for delegating votes, becoming a DRep, and reading the
constitution. None of that is dev-facing, so the section earned its
keep only through the cardano-cli guides buried inside it.

Fold the build-relevant material into Module 6 (Staking & Governance):
pull the cardano-cli guides under build/staking-governance/cardano-cli/,
move the Conway thresholds and ratification lifecycle into the Module 6
governance page, and point every participation reference out to
cardano.org/governance. Drop the section sidebar, the homepage bento
card link, and the navbar dropdown; repoint redirects so old governance
URLs land on Module 6.

Reduce Oura's dependency footprint so the released binary can bundle most
integrations by default, instead of forcing consumers to compile custom
feature-flavored builds.

Base trims & dedup:
- move reqwest to rustls and bump to 0.12, collapsing the duplicate
  native-tls/openssl and rustls/http/hyper stacks onto a single tree
- gate handlebars behind the `sql` feature (its only user)
- drop the unused `yaml` config format (keep toml + json)
- bump bech32 0.9->0.11 and itertools 0.12->0.14 to dedupe with pallas
- adopt gasket/gasket-prometheus 0.11.1, which drops prometheus_exporter_base
  and its legacy TLS/HTTP server stack (metrics endpoint verified working)

Batteries-included release binary (~37 MB, fully pure-Rust TLS):
- default dist features now bundle u5c, elasticsearch, hydra, redis, rabbitmq,
  sql, gcp and aws
- keep sqlx, elasticsearch and google-cloud-pubsub on rustls so no system
  OpenSSL is pulled into the release build
- leave kafka, zeromq, mithril and wasm opt-in (each needs a special build
  environment incompatible with portable cross-target releases)
- wire the opt-in `kafka` feature to vendored OpenSSL (its only TLS backend is
  openssl-sys) so kafka / `--all-features` builds compile without a system
  OpenSSL; the release bundle stays pure-rustls
- document the bundled vs. source-build integrations in the install docs

Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>