chore: release 0.8.2

[github-actions]

🚀 Release ${version}

0.8.2 (2026-06-08)

Features

• controller: add Model refreshPolicy + upstream drift detection (#635) (7dc5b14)
• controller: real accelerator availability check for Model status (#230) (#610) (f8652fd)
• foreman: add opt-in NetworkPolicy to the Foreman Helm chart (#625) (8872b4d)
• foreman: Job execution strategy for remote-model coder/reviewer Agents (#620) (#621) (2317ac0)
• metal-agent: stable host-side client proxy on a fixed port (#406) (#608) (5b4ea34)

Bug Fixes

• bump Go toolchain to 1.26.4 to patch standard-library CVEs (#626) (6d8fbb7)
• controller: recreate InferenceService Deployment on immutable selector change (#606) (#607) (faf9151)
• controller: revalidate http/https model sources in init container (#636) (64812e5)
• foreman: detect stale FleetNodes via heartbeat window (#633) (515bdfe)
• foreman: harden the agent loop against false-negative INCOMPLETE terminations (#623) (edc93e4)
• foreman: propagate Job-mode branch + commit SHA to AgenticTask status (#634) (3586a14)

Documentation

• roadmap: rewrite around the heterogeneous sovereign fleet thesis + milestones (#632) (d98b257)

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