fix(wait): don't print job status in wait builtin

[reubeno]

The wait builtin printed each completed job to stdout when job control was enabled. bash's wait is silent on both stdout and stderr; job-completion notices ("[1]+ Done ...") belong to the interactive prompt cycle, not to wait.

[github-actions]

Test Results

    5 files     40 suites   14m 35s ⏱️
2 507 tests 2 505 ✅ 0 💤 2 ❌
7 797 runs  7 795 ✅ 0 💤 2 ❌

For more details on these failures, see this check.

Results for commit 55cf932.

♻️ This comment has been updated with latest results.

[github-actions]

Performance Benchmark Report

Benchmark name	Baseline (μs)	Test/PR (μs)	Delta (μs)	Delta %
clone_shell_object	19.53 μs	17.25 μs	-2.29 μs	🟢 -11.70%
eval_arithmetic	0.15 μs	0.15 μs	-0.00 μs	⚪ Unchanged
expand_one_string	1.60 μs	1.60 μs	0.01 μs	⚪ Unchanged
for_loop	31.50 μs	31.30 μs	-0.20 μs	⚪ Unchanged
full_peg_complex	57.66 μs	57.58 μs	-0.08 μs	⚪ Unchanged
full_peg_for_loop	6.29 μs	6.28 μs	-0.02 μs	⚪ Unchanged
full_peg_nested_expansions	16.00 μs	15.96 μs	-0.04 μs	⚪ Unchanged
full_peg_pipeline	4.17 μs	4.25 μs	0.08 μs	🟠 +1.85%
full_peg_simple	1.75 μs	1.81 μs	0.06 μs	🟠 +3.25%
function_call	3.23 μs	3.25 μs	0.01 μs	⚪ Unchanged
instantiate_shell	53.79 μs	53.90 μs	0.11 μs	⚪ Unchanged
instantiate_shell_with_init_scripts	25550.30 μs	25647.11 μs	96.81 μs	⚪ Unchanged
parse_peg_bash_completion	2084.20 μs	2086.43 μs	2.24 μs	⚪ Unchanged
parse_peg_complex	20.33 μs	20.38 μs	0.06 μs	⚪ Unchanged
parse_peg_for_loop	1.99 μs	2.06 μs	0.07 μs	🟠 +3.58%
parse_peg_pipeline	2.12 μs	2.19 μs	0.07 μs	🟠 +3.45%
parse_peg_simple	1.08 μs	1.11 μs	0.02 μs	⚪ Unchanged
run_echo_builtin_command	15.98 μs	15.71 μs	-0.27 μs	⚪ Unchanged
tokenize_sample_script	3.38 μs	3.37 μs	-0.01 μs	⚪ Unchanged

Code Coverage Report: Only Changed Files listed

Package	Base Coverage	New Coverage	Difference
brush-builtins/src/set.rs	🟢 79.3%	🟢 80.18%	🟢 0.88%
brush-builtins/src/wait.rs	🟠 67.74%	🟠 70.37%	🟢 2.63%
brush-interactive/src/highlighting.rs	🟠 72.92%	🟢 89.94%	🟢 17.02%
brush-interactive/src/reedline/highlighter.rs	🔴 13.19%	🔴 13.33%	🟢 0.14%
Overall Coverage	🟢 74.49%	🟢 74.75%	🟢 0.26%

Minimum allowed coverage is 70%, this run produced 74.75%
Maximum allowed coverage difference is -5%, this run produced 0.26%

Test Summary: bash-completion test suite

Outcome	Count	Percentage
✅ Pass	1582	75.01
❗️ Error	17	0.81
❌ Fail	156	7.40
⏩ Skip	339	16.07
❎ Expected Fail	13	0.62
✔️ Unexpected Pass	2	0.09
📊 Total	2109	100.00