docs+ci: surface 10-language golden verification (#303)

* docs+ci: surface 10-language golden verification; add WASM golden CI

- README: add C++ to the Quickstart list and state prominently that all 514
  indicators are replayed through all 10 languages and checked bit-for-bit
  against the Rust reference.
- CHANGELOG: document the cross-language golden suite, the Java and R C-ABI
  bool-marshalling fixes, the C# nullable directive and the live_binance rename.
- ci.yml: run the WASM golden suite (nodejs-target build + node --test); the
  C/C++ golden tests already run via the C-ABI job's ctest and the other
  bindings pick up their golden runners in their existing test suites.

* readme: add verified badge + prominent per-language throughput table

- Add the 'verified across 10 languages' badge to the badge row, linking to
  the FAQ that explains the cross-language golden parity.
- Surface a per-binding throughput table (the cost of each language's FFI
  boundary) so readers can pick a binding that keeps up with streaming hot
  loops — the cross-library benchmarks stay in BENCHMARKS.md.

* changelog: note the verified badge and per-binding throughput table

* docs: fix cross-language consistency (audit)

- docs/README.md: add the missing C++ quickstart link.
- README testing section: the golden parity now covers all 10 languages and
  all 514 indicators (was 'four C-ABI bindings, 7 archetype indicators').
- CHANGELOG: the live_binance rename also covers the C examples.

.github/workflows/ci.yml

@@ -566,6 +566,12 @@ jobs:
           test -f bindings/wasm/pkg/wickra_wasm_bg.wasm
           test -f bindings/wasm/pkg/wickra_wasm.d.ts
 
+      - name: Build WASM package (nodejs target) for the golden suite
+        run: wasm-pack build bindings/wasm --target nodejs --release --out-dir pkg
+
+      - name: Golden parity — all 514 indicators vs the Rust reference
+        run: node --test bindings/wasm/tests/golden.test.js
+
   node:
     name: Node ${{ matrix.node-version }} on ${{ matrix.os }}
     runs-on: ${{ matrix.os }}