feat(python): add native distribution and release infrastructure

- add the Rust-backed Python API with PyStemmer compatibility
- distribute standard compiled models as a separate Python package
- generate model artifacts during builds instead of storing them in Git
- add GitHub release and Pages-backed package index workflows
- add Python tests, benchmarks, documentation, and Gradle integration
- refresh the documentation site, branding, and language benchmarks

docs/getting-started.md

@@ -0,0 +1,34 @@
+# Get Started with Radixor
+
+Radixor provides first-class Java and Python runtimes over the same learned
+patch-command model. Choose the environment that matches the application; both
+use the maintained language catalog and can exchange compiled version 7 tries.
+
+## Python
+
+Choose Python for native CPython integration, efficient batch calls, and a
+PyStemmer-compatible migration surface.
+
+```bash
+python -m pip install radixor
+```
+
+- [Python Fast Track](python/fast-track.md) — install and produce the first stem.
+- [Python Quick Start](python/quick-start.md) — build an application workflow.
+- [Python Usage and API](python/usage.md) — scalar, batch, cache, and custom-model APIs.
+
+## Java
+
+Choose Java for JVM integration, selectable reduction modes, registry-based
+model discovery, and extending or persisting compiled tries.
+
+- [Java Fast Track](fast-track.md) — add the core/model dependencies and produce the first stem.
+- [Java Quick Start](quick-start.md) — loading, querying, extension, and persistence.
+- [Java Integration Deep Dive](integration-deep-dive.md) — lifecycle and production guidance.
+
+## Shared concepts
+
+- [Built-in Languages](built-in-languages.md) documents aliases, model IDs, and defaults.
+- [Dictionary Format](dictionary-format.md) defines the common source semantics.
+- [Benchmarks](benchmarks/index.md) separates runtime speed from linguistic quality.
+- [Architecture](architecture.md) explains shared behavior and runtime-specific internals.