docs: standardise language naming + binding security sections (#290)

* docs: standardise language naming and add binding security sections

Canonical binding list everywhere: Rust, Python, Node.js, WASM, C, C++, C#,
Go, Java, R. Use C# (not .NET) as the language label, WASM (not WebAssembly)
in prose, and frame the C ABI as a hub rather than a list item.

- Bump stale indicator counts (200+ -> 514) and family count (sixteen ->
  twenty-four) in the Node/Python/WASM and docs READMEs.
- Add a short Security section to all eight binding READMEs.
- Relabel benchmark rows (C -> C / C++, C# / .NET -> C#).
- Fix the 'language stecker' wording in the C#/Go/R API intros.
- Documentation only; no code or public API changes.

* release.yml: extend install snippets and expose version output

Add the missing registry installs to the release body (dotnet, go, Gradle/
Maven Central, r-universe) alongside cargo/pip/npm, and expose a v-stripped
'version' output from the tag step for the Gradle coordinate. Also fix the
C-ABI language order in the assets note (C# before Go).

* release.yml: correct the release body (10 languages, all registries)

Reframe the tagline to '10 languages' (native Rust/Python/Node.js/WASM + a C
ABI hub for C, C++, C#, Go, Java, R) instead of '4 language registries', note
that C#/Java/Go/R publish to NuGet/Maven/Go/r-universe via their own jobs, and
tidy the Node.js label and the C-ABI hub list.

.github/workflows/release.yml

@@ -876,6 +876,7 @@ jobs:
     # bundle to this same release without re-resolving it.
     outputs:
       tag: ${{ steps.tag.outputs.tag }}
+      version: ${{ steps.tag.outputs.version }}
     steps:
       - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
@@ -904,6 +905,7 @@ jobs:
             exit 1
           fi
           echo "tag=$tag" >> "$GITHUB_OUTPUT"
+          echo "version=${tag#v}" >> "$GITHUB_OUTPUT"
           echo "::notice::attaching assets to release $tag"
 
       - name: Download all build artifacts
@@ -941,7 +943,7 @@ jobs:
           # the provenance bundle is attached (P24, immutability-ready).
           draft: true
           body: |
-            Wickra ${{ github.ref_name }} — streaming-first technical indicators across 4 language registries plus a C ABI.
+            Wickra ${{ github.ref_name }} — streaming-first technical indicators for 10 languages: native Rust, Python, Node.js, WASM plus a C ABI hub for C, C++, C#, Go, Java, R.
 
             ### Install
 
@@ -950,21 +952,37 @@ jobs:
             pip install wickra
             npm install wickra
             npm install wickra-wasm
+            dotnet add package Wickra
+            go get github.com/wickra-lib/wickra-go
+            ```
+
+            Java (Gradle, Maven Central):
+
+            ```gradle
+            implementation("org.wickra:wickra:${{ steps.tag.outputs.version }}")
+            ```
+
+            R (r-universe):
+
+            ```r
+            install.packages("wickra", repos = "https://wickra-lib.r-universe.dev")
             ```
 
             ### Attached assets
 
-            Pre-built artefacts for every supported platform — the same files that
-            were uploaded to crates.io, PyPI, and npm by this workflow run.
+            Pre-built artefacts for every supported platform — the same files this
+            workflow run published to crates.io, PyPI, and npm. C# ships to NuGet,
+            Java to Maven Central, Go to the wickra-go module, and R to r-universe
+            via their own release jobs.
 
             - `*.whl` / `wickra-*.tar.gz` — Python wheels + sdist (5 platforms, ABI3 ≥ 3.9)
-            - `wickra.*.node` — native Node bindings (linux-x64-gnu, darwin-x64,
+            - `wickra.*.node` — native Node.js bindings (linux-x64-gnu, darwin-x64,
               darwin-arm64, win32-x64-msvc)
             - `wickra-*.tgz` — npm-pack tarballs (main package + per-platform subpackages + WASM)
             - `*.crate` — cargo source crates (wickra-core, wickra-data, wickra)
             - `wickra-c-<target>.tar.gz` — C ABI: `include/wickra.h` + `wickra.hpp`
               and the cdylib/staticlib per target (linux/macos/windows × x64/arm64),
-              the hub for C / C++ / Go / C# / Java / R
+              the hub for C, C++, C#, Go, Java and R
 
             ### Auto-generated changelog