[milestone Milestone 12] `POST /v1/verify/composed` — Composed policy endpoint: `{"policies":[{"stage":...

[telleroutlook]

🤖 Auto-filed from milestone doc bullet.

Repo: WasmAgent/symkernel
Milestone: Milestone 12 — Advanced Symbolic Reasoning & Z3 Integration (Phase 2)
Bullet:

POST /v1/verify/composed — Composed policy endpoint: {"policies":[{"stage":"cel","spec":{...}},{"stage":"wasm","spec":{...}},{"stage":"smt","spec":{...}}],"input":{...}} → {"ok":true,"report":{"stages":[...],"decision_id":"..."},"evalMs":45}; each stage includes independent decision_id and hint fields

Relevant code context (from worktree)

new (does not exist yet): /v1/verify/composed
contains 'verify': ""/tmp/tmp.ufhVOKX3Uq"/wasmagent-js"/packages/capability-compiler/src/traceValidator.ts
contains 'verify': ""/tmp/tmp.ufhVOKX3Uq"/wasmagent-js"/packages/compliance/src/ir/ConstraintIR.test.ts
contains 'verify': ""/tmp/tmp.ufhVOKX3Uq"/wasmagent-js"/packages/compliance/src/ir/ConstraintIR.ts
contains 'composed': ""/tmp/tmp.ufhVOKX3Uq"/wasmagent-js"/packages/mcp-gateway/src/index.test.ts
contains 'composed': ""/tmp/tmp.ufhVOKX3Uq"/wasmagent-js"/packages/core/src/agents/AgentSupervisor.test.ts
contains 'composed': ""/tmp/tmp.ufhVOKX3Uq"/wasmagent-js"/packages/core/src/agents/verifiers/types.ts

Implementation note: Files marked "new (does not exist yet)" must be created from scratch. verify-first should return PROCEED (not NOT_YET) — there is no prerequisite blocking this work.

Acceptance criteria

• Command go build ./... 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.

---

Filed automatically.