chore: release 0.8.0

[loookashow]

Release 0.8.0. Version bump and release notes only — no source changes.

Contents

• src/foxnose_sdk/_version.py → 0.8.0. That module is the single source: pyproject.toml reads it through hatch, and config.py builds the User-Agent from it.
• tests/test_collection_type_aliases.py — the pin that asserts the declared version, updated with it.
• docs/changelog.md: one ## [0.8.0] section covering both features.

Note the changelog goes in docs/changelog.md, not the root CHANGELOG.md. docs/ is the maintained one — it is published through mkdocs and carries 0.7.0 and 0.7.1; the root file stopped at 0.6.0 several releases ago. Reviving it half-way here would make it more misleading, not less, so it is left alone. Worth deciding separately whether to delete it or symlink it.

Merge after

• feat/truncate-text-and-cross-parent-reads
• feat/flux-bearer-token

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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