DO NOT MERGE: BEL/execlog testing scratch PR

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Draft PR purely to trigger a CI run so I can grab the bazel-exec log.zst artifact and analyze it with beltool (local, not yet public).

Trivial no-op comment in bazel/build.bzl to force a rebuild without touching real code. Do not merge.

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bazel_args=--profile=vbuild/artifacts/bazel-profile.json.gz

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bazel_args=--remote_download_minimal

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bazel_args=--remote_download_minimal --nobuild_runfile_links

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bazel_args=--remote_download_minimal --nobuild_runfile_links --experimental_inmemory_jdeps_files --experimental_inmemory_dotd_files

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/rp-unit-test
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bazel_args=--remote_download_minimal --nobuild_runfile_links

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bazel_args=--remote_download_minimal --nobuild_runfile_links --profile=vbuild/artifacts/bazel-profile.json.gz

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bazel_args=--profile=vbuild/artifacts/bazel-profile.json.gz

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/rp-unit-test
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bazel_args=--remote_download_minimal --nobuild_runfile_links --profile=vbuild/artifacts/bazel-profile.json.gz --build_event_binary_file=vbuild/artifacts/bazel-events.binpb

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bazel_args=--remote_download_minimal --nobuild_runfile_links --remote_download_regex='.bazel/packaging/.,./redpanda/redpanda$,./rp_util/rp_util$' --profile=vbuild/artifacts/bazel-profile.json.gz --build_event_binary_file=vbuild/artifacts/bazel-events.binpb

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/rp-unit-test
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bazel_args=--remote_download_minimal --nobuild_runfile_links --remote_download_regex=.bazel/packaging/. --remote_download_regex=./redpanda/redpanda$ --remote_download_regex=./rp_util/rp_util$ --profile=vbuild/artifacts/bazel-profile.json.gz --build_event_binary_file=vbuild/artifacts/bazel-events.binpb

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bazel_args=--remote_download_minimal --nobuild_runfile_links --remote_download_regex=.bazel/packaging/bazel_out.tar.gz$ --remote_download_regex=./src/v/redpanda/redpanda$ --remote_download_regex=.*/src/v/rp_util/rp_util$ --profile=vbuild/artifacts/bazel-profile.json.gz --build_event_binary_file=vbuild/artifacts/bazel-events.binpb

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CI test results

test results on build#84826

test_status	test_class	test_method	test_arguments	test_kind	job_url	passed	reason	test_history
FLAKY(PASS)	ShadowLinkingReplicationTests	test_auto_prefix_trimming	{"source_cluster_spec": {"cluster_type": "redpanda"}, "storage_mode": "cloud", "with_failures": true}	integration	https://buildkite.com/redpanda/redpanda/builds/84826#019e4bed-6b93-4533-ad8f-6e6c31d0fb8f	10/11	Test PASSES after retries.No significant increase in flaky rate(baseline=0.0020, p0=1.0000, reject_threshold=0.0100. adj_baseline=0.1000, p1=0.3487, trust_threshold=0.5000)	https://redpanda.metabaseapp.com/dashboard/87-tests?tab=142-dt-individual-test-history&test_class=ShadowLinkingReplicationTests&test_method=test_auto_prefix_trimming
FLAKY(PASS)	ShadowLinkingReplicationTests	test_with_restart	{"storage_mode": "cloud"}	integration	https://buildkite.com/redpanda/redpanda/builds/84826#019e4bed-6b93-4533-ad8f-6e6c31d0fb8f	27/31	Test PASSES after retries.No significant increase in flaky rate(baseline=0.0421, p0=0.1310, reject_threshold=0.0100. adj_baseline=0.1211, p1=0.4993, trust_threshold=0.5000)	https://redpanda.metabaseapp.com/dashboard/87-tests?tab=142-dt-individual-test-history&test_class=ShadowLinkingReplicationTests&test_method=test_with_restart

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/rp-unit-test
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bazel_args=--remote_download_minimal --nobuild_runfile_links --remote_download_regex=bazel/packaging/bazel_out.tar.gz --remote_download_regex=src/v/redpanda/_objs/redpanda --remote_download_regex=src/v/redpanda/redpanda$' '--remote_download_regex=src/v/rp_util/rp_util --profile=vbuild/artifacts/bazel-profile.json.gz --build_event_binary_file=vbuild/artifacts/bazel-events.binpb

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/rp-unit-test
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bazel_args=--remote_download_minimal --nobuild_runfile_links --remote_download_regex=bazel/packaging/bazel_out.tar.gz --remote_download_regex=src/v/redpanda/redpanda --remote_download_regex=src/v/rp_util/rp_util --profile=vbuild/artifacts/bazel-profile.json.gz --build_event_binary_file=vbuild/artifacts/bazel-events.binpb

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/rp-unit-test
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bazel_args=--remote_download_minimal --nobuild_runfile_links --remote_download_regex=bazel/packaging/bazel_out.tar.gz --profile=vbuild/artifacts/bazel-profile.json.gz --build_event_binary_file=vbuild/artifacts/bazel-events.binpb

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/rp-unit-test
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bazel_args=--remote_download_minimal --nobuild_runfile_links --remote_download_regex=bazel/packaging/bazel_out.tar.gz --profile=vbuild/artifacts/bazel-profile.json.gz --build_event_binary_file=vbuild/artifacts/bazel-events.binpb

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/rp-unit-test
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bazel_args=--remote_download_minimal --nobuild_runfile_links --remote_download_regex=.*bazel/packaging/bazel_out.tar.gz --profile=vbuild/artifacts/bazel-profile.json.gz --build_event_binary_file=vbuild/artifacts/bazel-events.binpb

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/rp-unit-test
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bazel_args=--remote_download_minimal --nobuild_runfile_links --remote_download_regex=.bazel/packaging/. --remote_download_regex=./redpanda/redpanda$ --remote_download_regex=./rp_util/rp_util$ --profile=vbuild/artifacts/bazel-profile.json.gz --build_event_binary_file=vbuild/artifacts/bazel-events.binpb