Bundle deploy preflight evidence for support

[Atomics-hub]

Summary

• refresh deploy handoff and production preflight inside the packaged support bundle
• attach deploy/preflight JSON and Markdown to support tickets with hashed artifact inventory
• require nested deploy/preflight evidence in the release-ticket support/doctor gate
• update README, package docs, release checklist, and release notes

Verification

• cargo fmt --check
• cargo test --locked sidecar_package_doctor_writes_support_report
• cargo test --locked release_ticket_smoke_inventory_lifts_named_artifacts
• cargo run --locked -- release-ticket --out dist/release-ticket-support-deploy-proof --force --json
• cargo test --locked
• cargo clippy --all-targets --all-features -- -D warnings
• cargo run --locked -- release-status --json | rg 'ready_for_alpha_rc|support bundle package path|deploy/preflight|hashed evidence inventory'
• cargo run --locked -- release-audit