The Rust worker is the product: edge/, built and checked in CI

User: Rust is the product (option a). tools/edge-bench-rs moves to edge/
(crate edge; binaries edge-node, the worker, and edge-bench, the replay).
CI's new job edge runs cargo test and edge/check-fixtures.sh: both
RangeIndexers on three committed captures (edge/fixtures, 25k overview
lines each of a.b.models, a.b.ath and a.b.boneless in 5 chunks, 3.5 MB),
compared field by field with check.ts; deploy waits for it. The
TypeScript RangeIndexer stays as check.ts's reference. README: what it
is now; the benchmark findings as history.

Random names: looksRandom missed long tokens of capitals and digits
("51294P1CUKR2R35X", release 74539068, readable and a Newznab title).
12+ capitals and digits switching 6+ times between them are random
(COD4MW2REMASTERED switches 4 times, BEATLES1964REMASTER twice); both
implementations, identical on the fixtures.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Dockerfile

@@ -2,7 +2,7 @@
 #
 # Voyager 2's images (deploy/compose.yaml):
 #   --target app   the AdonisJS app: web server, coordinator, migrations, ace commands
-#   --target edge  the Rust edge worker (tools/edge-bench-rs, bin edge-node)
+#   --target edge  the Rust edge worker (edge/, bin edge-node)
 
 # Node is pinned as in CI (.nvmrc): on 24.21, jsonschema 1.5.0 (used by Ace to
 # validate commands) throws "Invalid URL" on $ref, so no ace command starts.
@@ -29,7 +29,7 @@ CMD ["node", "ace", "list"]
 # The Rust worker. Registry and target dir are build caches, so a rebuild only compiles what changed.
 FROM rust:1-bookworm AS edge-build
 WORKDIR /src
-COPY tools/edge-bench-rs ./
+COPY edge ./
 RUN --mount=type=cache,target=/usr/local/cargo/registry \
     --mount=type=cache,target=/src/target \
     cargo build --release --locked --bin edge-node \