feat: version the Estimation v2 performance contract

[tom-sapletta-com]

Ticket: ticket-010
Correlation ID: estimation-performance-v2-contract

Publishes the integration-owned v2 sample schema, read-only opportunity operation and package version metadata required by ticket-011.

[ifuri-validator-agent]

Deterministic Validator approval for exact head a059d7a9e00498db7f60d449b213ab4a7ec4cbd0.

Ticket: ticket-010
Correlation ID: estimation-pr-7-ticket-010
Model: zai/glm-5.3
Advisory LLM review: LLM_UNAVAILABLE
Reason: litellm.RateLimitError: RateLimitError: ZaiException - Usage limit reached for 5 hour. Your limit will reset at 2026-08-30 20:04:38
This approval rests on the deterministic checks alone; no advisory opinion was recorded for this head.
Merge will be attempted after this approval when explicitly authorized.

Decision record (recomputable)

DECISION D-010-9546
TICKET ticket-010
HEAD_SHA a059d7a9e00498db7f60d449b213ab4a7ec4cbd0
CORRELATION_ID estimation-pr-7-ticket-010
ACTOR agent:ifuri-validator-agent[bot]
APPLIED_RULE P-CORE-015
INPUT author_login = "tom-sapletta-com"
INPUT observed_checks = ["test=PASS","windows-governance=PASS","governance / enforce=PASS","governance / remote lifecycle=PASS"]
INPUT required_checks = ["test","windows-governance"]
INPUT required_checks_source = "protected registry (governance/required-checks.json)"
INPUT reviewer_login = "ifuri-validator-agent[bot]"
INPUT superseded_checks = []
VERDICT APPROVE AUTHORITY DETERMINISTIC
REJECTED REQUEST_CHANGES BECAUSE NO_UNSAFE_CHANGE_REASON_FOUND
ADVISORY llm_verdict = "" MODEL "zai/glm-5.3"
ASSERT VERDICT_AUTHORITY != "ADVISORY"