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>

.gitea/workflows/deploy.yaml

@@ -66,8 +66,28 @@ jobs:
       - name: Test
         run: node ace test
 
+  # The edge worker (edge/, Rust): its tests, and the Rust and TypeScript
+  # RangeIndexers compared on the committed captures (edge/fixtures).
+  edge:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version-file: .nvmrc
+          cache: npm
+      - run: npm ci
+      - name: Rust toolchain
+        run: |
+          command -v cargo || curl -sSf https://sh.rustup.rs | sh -s -- -y --profile minimal
+          echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
+      - name: cargo test
+        run: cargo test --release --manifest-path edge/Cargo.toml
+      - name: Rust and TypeScript identical on the fixtures
+        run: edge/check-fixtures.sh
+
   deploy:
-    needs: test
+    needs: [test, edge]
     if: github.ref == 'refs/heads/rebuild'
     runs-on: ubuntu-latest
     steps: