feat(rust): port compression-parameter selection

Move the context-free compression-parameter logic of zstd_compress.c to
rust/src/zstd_compress_params.rs: the compression-level tables (formerly
clevels.h), parameter bounds/checking/clamping, cycle log, level-table
selection, source/dictionary parameter adjustment, default frame
parameters, and the match-state/CDict size estimators.

The boundary follows the module's design notes: Rust owns only leaves
whose behavior is independent of C preprocessor configuration.  C keeps
the public ZSTD_* symbols and feeds the leaves everything that is
configuration-owned as explicit scalars:

- The ZSTD_EXCLUDE_*_BLOCK_COMPRESSOR strategy cascade stays in
  ZSTD_adjustCParams_internal() ahead of the Rust adjustment leaf, so
  reduced builds keep their fallback policy.
- Workspace estimation receives struct sizes (ZSTD_CDict, ZSTD_match_t,
  ZSTD_optimal_t), HUF workspace size, and the sanitizer redzone size,
  because those depend on private layouts and ASAN configuration.
- ZSTD_cParam_getBounds() forwards only the compression level and the
  seven core parameters; all other parameter bounds remain C.
- Frozen private constants the leaves hardcode (short-cache and row-hash
  tag widths, MaxML/MaxLL/MaxOff/Litbits, ZSTD_OPT_SIZE, cwksp alignment)
  are pinned by ZSTD_STATIC_ASSERTs at the C call sites.

Two latent 32-bit bugs in the previously unwired module were fixed
before integration: dictAndWindowLog's max window size and the
window-resize threshold were hardcoded to the 64-bit constants
(1<<31, 1<<30) instead of deriving from ZSTD_WINDOWLOG_MAX, which is
30 on 32-bit targets.

clevels.h is no longer included anywhere but stays in-tree as the
reference for mechanical comparison against the Rust table.

Test plan:
- cd rust && cargo fmt --check && cargo clippy --all-targets -- -D
  warnings && cargo test --all-targets (125 tests)
- make -C tests fuzzer && ./tests/fuzzer -i1 --no-big-tests
- make -C tests test-rust-lib-smoke
- Byte-identity: zstd CLI frames for COPYING, a 250 KB C source, and a
  5 MB datagen sample at levels 1/3/9/19/--fast=5 are identical between
  this change and its parent commit.

rust/src/lib.rs

@@ -28,6 +28,8 @@ pub mod zstd_compress_frame;
 #[cfg(feature = "compression")]
 pub mod zstd_compress_literals;
 #[cfg(feature = "compression")]
+pub mod zstd_compress_params;
+#[cfg(feature = "compression")]
 pub mod zstd_compress_sequences;
 #[cfg(feature = "compression")]
 pub mod zstd_compress_superblock;