chore(main): release 0.8.0

[jmagar]

This release PR is managed by release-please. CI adds a follow-up fixup commit for derived files such as Cargo.lock and server.json registry metadata.

0.8.0 (2026-07-31)

Added

• complete Python provider phases 5-7 (d1ab3d0)
• complete Python provider phases 5-7 (#250) (d1ab3d0)
• providers: productionize Python environments (#249) (978a957)
• python: wire production immutable environments (978a957)
• python: wire production immutable environments (a0c0092)
• rmcp-template-ks2u.2: expose Python environment operations (74f4f2f)
• rmcp-template-ue65+arxb: complete Python workers and generations (3475a37)

Fixed

• ci: install targets on active Rust toolchain (#248) (940f1b0)
• providers: harden Python runtime lifecycle (d153420)
• rmcp-template-ks2u.1: finish cross-platform contract repairs (cb406ae)
• rmcp-template-ks2u.1: repair production environment CI (041cd4c)
• rmcp-template-ue65+arxb: harden Python lifecycle completion (ed36903)
• satisfy Soma release contracts (87ca0de)

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Merge this PR to let release-please create the tag and GitHub Release. Artifact workflows attach binaries, publish npm, build Docker, and publish the MCP registry manifest after the release is published.

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