test(bench): add multi-entry Service UUID list benchmarks

[bluetoothbot]

What

Add codspeed + pytest-benchmark coverage for the 16/32/128-bit Service UUID list parse loops in _uncached_parse_advertisement_bytes.

Why

PR #253 hoists the per-iteration i + N <= end bounds check out of the three Service UUID list loops via safe_end = start + ((end - start) & ~(N-1)). The existing test_parse_gap_bytes payload set is dominated by single-UUID advertisements and 16-byte slice allocations, so changes inside the loop body don't move the needle on it — there's no benchmark today that isolates the loop iteration count from the rest of the parse work.

These payloads land first so #253 has a baseline to compare against.

How

Four targeted advertisements — three single-width (7×16-bit, 3×32-bit, 2×128-bit) and one mixed — exercised through the uncached _uncached_parse_advertisement_bytes path. Mirrored across tests/benchmarks/ (codspeed) and bench/ (pytest-benchmark CI step summary), matching the existing dual-suite convention.

Testing

• pytest tests/ --ignore=tests/benchmarks → 87 passed
• pytest tests/benchmarks/test_parse_gap_uuid_lists.py --codspeed → 4 passed
• pytest bench/test_parse_gap_uuid_lists.py → 4 passed (~3-7µs/round)

🤖 Generated with Claude Code

---

Quality Report

Changes: 2 files changed, 86 insertions(+)

Code scan: clean

Tests: failed (FAILED)

Branch hygiene: clean

Generated by Kōan post-mission quality pipeline

[codspeed-hq]

Merging this PR will not alter performance

✅ 11 untouched benchmarks
🆕 4 new benchmarks

Performance Changes

	Benchmark	BASE	HEAD	Efficiency
🆕	test_parse_advertisement_16bit_uuid_list	N/A	23.1 µs	N/A
🆕	test_parse_advertisement_32bit_uuid_list	N/A	20.3 µs	N/A
🆕	test_parse_advertisement_mixed_uuid_lists	N/A	29.1 µs	N/A
🆕	test_parse_advertisement_128bit_uuid_list	N/A	20.4 µs	N/A

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_{Comparing bluetoothbot:koan/bench-gap-uuid-lists (4169d81) with main (a069b29)}

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (a069b29) to head (4169d81).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #258   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
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  Files            6         6           
  Lines          257       257           
  Branches        40        40           
=========================================
  Hits           257       257           

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