chore(openspec): archive all completed changes, sync 14 new specs to library

Archived 4 completed OpenSpec changes (2026-04-02):
- phase-3-enterprise (100/100 tasks) — 6 Phase 3 capabilities synced
- devops-documentation (48/48 tasks) — 3 new + 1 merged capability
- bedroom-developer-docs (33/33 tasks) — 4 new capabilities synced
- engineering-docs (superseded by 2026-03-29 archive) — no tasks

Main spec library grows from 21 → 35 capabilities (+14 new):
federation, multi-tenancy, oidc, soc2, w3c-dids, webhooks,
database, operations, system-overview, api-reference, core-concepts,
developer-guides, quick-start + deployment (merged additive requirements)

Active changes: 0 — project board is clear for Phase 4 planning.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

openspec/changes/archive/2026-04-02-bedroom-developer-docs/proposal.md

@@ -0,0 +1,34 @@
+## Why
+
+SentryAgent.ai AgentIdP Phase 1 MVP is fully implemented, tested, and live — but there is zero human-readable documentation for the developers we are building this for. A bedroom developer landing on this repo today cannot register their first agent without reading raw OpenAPI YAML or diving into source code. We fix that now.
+
+## What Changes
+
+- New `docs/developers/` folder containing a complete, self-contained documentation set for bedroom developers
+- Quick-start guide: first agent registered and authenticated in under 5 minutes
+- Core concepts doc: plain-English explanation of AgentIdP, AGNTCY alignment, and the agent identity model
+- Step-by-step guides: agent registration, credential management, token issuance, audit log queries
+- Human-friendly API reference: every endpoint documented with real curl examples and response samples
+- FAQ: common errors, gotchas, and free-tier limits explained
+- All docs written for a bedroom developer audience — no enterprise jargon, no assumed knowledge
+
+## Capabilities
+
+### New Capabilities
+
+- `quick-start`: 5-minute guide from zero to first authenticated agent request — install, register, credential, token, done
+- `core-concepts`: Plain-English explanation of what AgentIdP is, how it relates to AGNTCY, the agent identity lifecycle, and why it matters
+- `developer-guides`: Step-by-step tutorials for the four core workflows: registering an agent, managing credentials, issuing and revoking tokens, querying the audit log
+- `api-reference`: Human-friendly API reference covering all 14 endpoints with real examples, field descriptions, error codes, and rate limit notes
+
+### Modified Capabilities
+
+*(none — this change introduces documentation only; no existing API specs are modified)*
+
+## Impact
+
+- New folder: `docs/developers/` (7 markdown files)
+- No code changes — documentation only
+- No new dependencies
+- No API changes
+- Existing `docs/openapi/` specs are reference material for the Technical Writer but are not modified