[story-e2e-smoke] End-to-end smoke test — full proof loop on 0G mainnet

[Blockchain-Oracle]

Source of truth: context/docs/stories/story-e2e-smoke.md.
The body of this issue mirrors the story file. If they disagree, the story wins (see SOURCE_OF_TRUTH.md + REFERENCE_REPO_AUDIT.md).

Dependency issues: #11, #12

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Epic: Epic 5 — Verification Dashboard
Estimated time: ~1h
Dependencies: story-skill-close, story-verifier-api

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Narrative

As the release integrator, I need one end-to-end smoke test that proves the OpenClaw session, on-chain anchor, storage lookup, and verification UI are wired together on real infrastructure.

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Acceptance criteria

Given the dashboard app and OpenClaw skill are configured with Galileo testnet environment variables
When `pnpm test:e2e` is run from the repo root
Then it completes successfully
And it prints a tokenId
And a GET request to `/api/verify/{tokenId}` returns HTTP 200
And the response includes `verified: true` or `verified: false` with a non-empty entries array

Given the e2e smoke test replays a real anchored session
When the proof is resolved
Then the rootHash matches the storage record
And the UI snapshot assertion finds the proof chain page elements

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File modification map

Create:

• tests/e2e-smoke.test.ts — repository-level smoke test for full flow
• tests/fixtures/anchored-session.json — fixture metadata for a real anchored session
• tests/fixtures/verify-response.json — expected response shape snapshot

Update:

• package.json — add test:e2e script
• README.md — document the smoke test command and required env vars

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Shell verification

pnpm test:e2e
# Must exit 0