[deep-report] Unify AntigravityResponse and GeminiResponse into a shared EngineJSONResponse struct

[github-actions]

Description

The Typist Go type-consistency analysis (#38607) found AntigravityResponse (pkg/workflow/antigravity_logs.go:13) and GeminiResponse (pkg/workflow/gemini_logs.go:13) are byte-for-byte identical apart from the name:

type AntigravityResponse struct {
    Response string         `json:"response"`
    Stats    map[string]any `json:"stats"`
}

Scope

Introduce one shared type EngineJSONResponse struct { Response string json:"response"; Stats map[string]any json:"stats" } in the workflow package and have both ParseLogMetrics paths unmarshal into it. Verified: both definitions are in-package with few references.

Expected Impact

Removes a structural duplicate, documents intent for a shared engine-response shape, and consolidates the repeated Stats map[string]any field flagged in the same report.

Suggested Agent

copilot-swe-agent or Code Simplifier.

Estimated Effort

Fast (< 1 hour).

Data Source

DeepReport run 2026-06-11; Typist analysis #38607 (Cluster 1).

Generated by 🔬 DeepReport - Intelligence Gathering Agent · 221.4 AIC · ⌖ 11.9 AIC · ⊞ 10.6K · ◷

• expires on Jun 13, 2026, 8:08 AM UTC-08:00

[github-actions]

This issue was automatically closed because it expired on 2026-06-13T16:08:19.465Z.

Closed by Workflow