docs(ticket-007): close completed delivery

[tom-sapletta-com]

Records exact-head Validator approval, merge evidence, and the final DONE state for ticket-007.

[ifuri-validator-agent]

Deterministic Validator approval for exact head 52516c7d0689f09a3febf41369c9c5da715e3bd3.

Ticket: ticket-007
Correlation ID: goal-pr-18-ticket-007-52516c7d
Model: openrouter/z-ai/glm-5.2
Reviewed diff chunks: 1
Advisory LLM verdict: APPROVE
Advisory summary: Reviewed all 1 diff chunk(s). Documentation-only changes marking ticket-007 as DONE, recording exact-head Validator approval, merge commit evidence, and final state transitions. No source code changes present in this chunk. Tests reported as passing on Python 3.12 and 3.13.
Advisory findings: none
The LLM output above is advisory and was not used as the approval trust root.
Merge was not requested or performed.