Update CMakeLists.txt

Change the window bits range from 8..15 to 9..15

…ount/buffer continuity, detect_data_type propagation, constant dedup, gz/read workaround removal

Resolved all 12 findings from Checkpoint 3 review:

MAJOR fixes:
- #1: detect_data_type() result now stored in DeflateState.data_type and
  propagated to stream.data_type via flush_block_only (trees.rs, state.rs, algorithm.rs)
- madler#6: BufError logic flattened to match C inflate.c L1150 exactly (inflate/mod.rs)
- madler#7: Check mode double-counting fixed with out_start=left reset matching C L1081
- madler#8: Removed avail_out==0 StreamError guard to allow header-only processing
- madler#9: inflate_fast now shares output_buf with slow path (start=0), fixing
  back-reference continuity across slow-to-fast transitions

MINOR fixes:
- #2: Added debug_assert to put_short/put_byte for buffer overflow detection
- madler#3: Removed unused TOO_FAR from hash.rs
- madler#4: Consolidated MIN_LOOKAHEAD to deflate/mod.rs, imported in submodules
- madler#10: Documented borrow-checker input copy requirement in inflate
- madler#11: inflate_get_header takes Box<GzHeader>; added header()/header_mut() accessors

INFO fixes:
- madler#5: Documented allocation strategy in flush_block_only; added capacity hints
- madler#12: Removed INFLATE_SAFE_OUT=257 workaround in gz/read.rs

FFI layer updated to Box::new() header in inflateGetHeader wrapper.
All 269 tests pass, zero new compilation errors, zero new clippy violations.