fix: update TechVault study for RAES 6.0.1

[Brad-Edwards]

Summary

Updates both TechVault packs for the RAES 6.0.1 SDL contract so the participant study parses, admits, and compiles with its four-inject delivery sequence intact.

Requirement UIDs

• (none — bug/refactor/maintenance run; see Traceability section below)

Related Issues

Closes #401

ADR Impact

• ADR-021

Changes

• Replace TechVault agent entity fields with affiliations and remove evidence media type declarations that lack registered output contracts.
• Advance both pack versions to 0.1.1 and regenerate their bindings and associated artifact manifests.
• Pin RAES 6.0.1, refresh dependency locks, and update release fixtures and study regression coverage.

Test Plan

• Unit tests pass
• Integration tests pass if applicable
• Full completion suite required in CI before merge
• No coverage regression

941 unit tests passed; repository and pack-root validation and release checks passed; compileall passed.

Ground Control Checks

• Repository policy checks required in CI before merge
• Pre-push Codex review completed; all findings fixed or dispositioned

Traceability

• IMPLEMENTS: Issue Fix TechVault participant study agent affiliations for current RAES #401 ← packs/techvault-participant-study/sdl/techvault-participant-study.sdl.yaml, Issue Fix TechVault participant study agent affiliations for current RAES #401 ← packs/techvault/sdl/techvault.sdl.yaml
• TESTS: Issue Fix TechVault participant study agent affiliations for current RAES #401 ← tests/test_techvault_study_pack.py, Issue Fix TechVault participant study agent affiliations for current RAES #401 ← tests/test_techvault_pack.py

Checklist

• Code follows the project's coding standards
• Changelog: owned by Release Please (generated from the Conventional Commit PR title; no per-PR fragment)
• Architectural docs updated if stack, package structure, or key behaviors changed

Documentation

Updated: see diff.