feat(openspec): Phase 3 Enterprise — proposal, design, specs, and tasks
Scaffolds the phase-3-enterprise OpenSpec change (proposal only — awaiting CEO
approval before implementation). 6 workstreams, 95 implementation tasks:
WS1: Multi-Tenancy (21 tasks) — org model, RLS, admin API
WS2: W3C DIDs (12 tasks) — DID:WEB, agent DID documents, AGNTCY cards
WS3: OIDC (12 tasks) — oidc-provider, ID tokens, JWKS, discovery
WS4: Federation (11 tasks) — cross-instance trust, JWT assertions
WS5: Webhooks (17 tasks) — subscriptions, Bull queue, HMAC, retry
WS6: SOC2 (22 tasks) — encryption at rest, Merkle audit chain, controls
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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