feat: 0.1.88 rust

Adds a `rewrites` rule routing `docs.blockfrost.io/dashboard-api/*` to a
standalone Vercel project hosting the Blockfrost Dashboard API
documentation, plus a 308 redirect from the bare `/dashboard-api` to the
trailing-slash form (mirroring the existing `/midnight` pattern). An
explicit rewrite for the trailing-slash index is included separately
because Vercel's path matcher treats `:path*` as one-or-more in practice,
so the bare `/dashboard-api/` would otherwise 404.

This repo only hosts the path under the shared `docs.blockfrost.io`
domain; the spec and Scalar build live in the separate project and
deploy independently. README updated under Development with a short note
on the architecture.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

feat: serve dashboard-api docs at /dashboard-api/

…new query params

Augments the paginated /governance/dreps response so wallets can render and rank
DReps without a follow-up call per row. Each DRep now also returns has_script,
amount, retired, expired, last_active_epoch, and an embedded metadata object
matching the shape of /dreps/{drep_id}/metadata. Deprecated fields (active,
active_epoch) are intentionally omitted from this enriched response.

New query parameters:
- order_by=amount  (in addition to existing order=asc|desc)
- retired=true|false
- expired=true|false

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

feat: extend /governance/dreps with status, voting power, metadata + new query params