[milestone Milestone 7 ] Implement alert emission via pluggable channels (webhook, SSE stream, log sink) ...

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🤖 Auto-filed from milestone doc bullet.

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

Implement alert emission via pluggable channels (webhook, SSE stream, log sink) for policy violations and chain integrity issues

Relevant code context (from worktree)

contains 'alert': packages/cloudflare-worker/src/webhooks.ts
contains 'alert': packages/mcp-posture/src/index.ts
contains 'alert': packages/mcp-posture/src/index.test.ts
contains 'emission': packages/mcp-gateway/src/index.ts
contains 'emission': packages/core/src/policies/approvalRequest.ts
contains 'emission': packages/core/src/agents/ToolCallingAgent.ts
contains 'pluggable': packages/mcp-gateway/src/audit.ts
contains 'pluggable': packages/core/src/memory/Retriever.ts
contains 'pluggable': packages/aep/src/timestamper.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.