Release v0.6.0

[V2arK]

Problem

Everything since v0.5.3 is unreleased, including the logs_v4 migration (#148), Dynamo support (#146), and cluster metadata updates (#150). The wheel also ships the top-level tests package (unscoped find_packages() picks it up), polluting the installer's site-packages namespace.

Change

• Bump version to 0.6.0 — minor, not patch, because [SDK] Migrate deployment log reading to logs_v4 and add pod listing #148 is a breaking change: get_deployment_logs replaced the logs_v3 signature (start_time/end_time/line_count/start_from_head/stream) with the per-pod logs_v4 surface (pod, before/after anchors, plus get_deployment_pods, get_deployment_logs_range, deployment_log_session).
• Exclude tests from packaging: find_packages(exclude=["tests", "tests.*"]). Wheel-only effect; the sdist still carries test sources and no pipeline change is needed (publish.yml just runs python -m build).

Ships since v0.5.3: logs_v4 log reading + pod listing (#148), Dynamo deployments (#146), cluster metadata update (#150), replica-scaling docs (#149), dependency bumps (#143, #145). Requires platform-api-python-client==4.25.0 (published).

Test plan

Check	Result
cd tests && pytest --sanity	93 passed
python -m build --wheel on this branch	centml-0.6.0-py3-none-any.whl, 0 tests/ entries, all centml/ subpackages present
Fresh-venv install of the built wheel (deps resolved from PyPI, incl. platform-api-python-client==4.25.0)	pip check clean; SDK surface + CLI entry points work; centml --version reports 0.6.0
Installed-wheel live smoke against dev (read-only, deployment 8554)	pods / session backfill (125 lines) / range window / merged read all exact vs the Loki ground-truth counts

[michaelshin]

Do we need to update platform-api-python-client too?