Align dependencies and add completion plan

[Dastari]

Summary

• align graphql-orm and agql-auth to reviewed final revisions
• simplify CI to resolve each manifest dependency universe directly
• make upstream repository ownership and handoff rules unconditional
• add the checkpoint-based completion plan

Verification

• full provider and SQLite test matrix
• warnings-denied Clippy and Rustdoc
• PascalCase GraphQL contract
• PostgreSQL and MSSQL compile checks
• owned disposable PostgreSQL migration/parity test
• release-policy, packaging/privacy, and SemVer checks

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