feat(rust): implement streaming API foundation (D1-D11)

- D1-D6: Create shared Rust crate with Encoder/Decoder traits, error types, buffer helpers, and WriteEncoder adapter
- D7: Adapt Huffman Rust with StreamingEncoder/StreamingDecoder
- D8: Adapt Arithmetic Rust with streaming wrappers
- D9: Adapt Range Rust with streaming traits
- D10: Adapt RLE Rust with streaming support
- D11: Add lifecycle tests for state machine validation

All algorithms now expose minimal buffered streaming APIs that match
the Go implementation contract. Tests verify lifecycle correctness.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: LessUp

algorithms/arithmetic/rust/Cargo.lock

@@ -0,0 +1,14 @@
+[package]
+name = "arithmetic"
+version = "0.1.0"
+edition = "2021"
+rust-version = "1.70"
+
+[[bin]]
+name = "arithmetic"
+path = "src/bin/arithmetic.rs"
+
+[dependencies]
+compresskit-codec = { path = "../../shared/rust" }
+
+[dev-dependencies]