[milestone Milestone 7 ] Implement `AttestationPublisher` for periodic signed snapshots of ledger state t...

[telleroutlook]

🤖 Auto-filed from milestone doc bullet.

Repo: WasmAgent/wasmagent-js
Milestone: Milestone 7 — Realtime Monitoring & Anomaly Detection
Bullet:

Implement AttestationPublisher for periodic signed snapshots of ledger state to external witnesses (multi-party verification)

Relevant code context (from worktree)

contains 'periodic': packages/mcp-server/src/McpAgentServer.ts
contains 'periodic': node_modules/.bun/devtools-protocol@0.0.1495869/node_modules/devtools-protocol/types/protocol.d.ts
contains 'periodic': node_modules/.bun/wrangler@3.114.17/node_modules/wrangler/wrangler-dist/cli.d.ts
contains 'signed': examples/owasp-demo/scenarios.ts
contains 'signed': packages/aisdk/src/index.ts
contains 'signed': packages/claude-agent-sdk/src/index.ts

Acceptance criteria

• Command bun install --frozen-lockfile && bun run build && bun run test passes
• The specific work described in the bullet above is implemented in the smallest number of files required.
• No unrelated files touched (git status --short output limited to the intended change).

Notes for the implementer

This issue was auto-created by SweepMilestoneBulletToIssue. The bullet text is verbatim
from the milestone doc. If ambiguous or too large for a single implement cycle,
verify-first should return NEEDS_SPLIT with sub-issue proposals or NEEDS_HUMAN with the blocker.

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Filed automatically.

[telleroutlook]

Closing: repeated failures (retry_count >= 3) without successful implementation. Beyond current bot capability with available providers.