fix(e2e): authenticate action waits with an observer token

[willwashburn]

Action waits in scripts/e2e.ts and scripts/e2e-actions.ts subscribe to /v1/ws with an observer token scoped to stream:read and activity:read. Agent tokens stay on the HTTP action calls.

action.invoked and action.completed arrive on that workspace observer stream. An agent token on /v1/ws is 401; an observer token with stream:read is 101. scripts/e2e-actions.ts keeps the handler's direct node connected so invoke can dispatch. That socket is not the event wait.

Fixes #378

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Note

Low Risk
Test and E2E script changes only; no production engine or API behavior is modified.

Overview
E2E action flows no longer wait on action.invoked / action.completed using agent tokens on /v1/ws (which the server rejects). Both scripts/e2e.ts and scripts/e2e-actions.ts now mint a workspace observer token and subscribe via shared helpers in scripts/action-wait-ws.ts (stream:read + activity:read so action.* frames pass the observer filter).

e2e-actions.ts additionally keeps the handler on a direct node WebSocket (/v1/node/ws) so invoke can dispatch; that connection is separate from the observer wait. Engine tests in actionWaitWsScript.test.ts lock the path, token prefix, scopes, and observerAllowsEvent behavior.

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📥 Commits

Reviewing files that changed from the base of the PR and between 3894b8b and a014a6b.

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📒 Files selected for processing (4)

• packages/engine/src/__tests__/actionWaitWsScript.test.ts
• scripts/action-wait-ws.ts
• scripts/e2e-actions.ts
• scripts/e2e.ts

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Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-10-10T10:05:32.484662Z	a014a6b	PR opened

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