chore(gds): pin 0.7.0-rc.5 bundle

[rldyourmnd]

Summary

• pin the verified GDS 0.7.0-rc.5 bundle at release sequence 51
• add the generated bundle lock and compiled public policy
• preserve repository-owned instructions and CI unchanged

Verification

• GDS plan, apply, and verify succeeded
• GDS context reports verified provenance with zero findings
• released projection check reports zero drift
• race tests, vet, staticcheck, build, fuzz contract, and four-platform cold compile passed