docs(org): complete A5 living-docs sweep (item CRUD merged) + dead_code cleanup

Extends the A5 pre-stage now that dev-b's full B-stream (item CRUD + all 19
org subcommands) merged to main (7392795). Living docs:
- FORMATS/CRYPTO/SECURITY/DESIGN: flip the item-CRUD "pending Dev-B" markers to
  shipped; SECURITY audit vocabulary moves item-* actions to live.
- crates/relicario-cli/ARCHITECTURE.md: full 19-subcommand surface (12 admin +
  7 item CRUD), accurate OrgAddKind scope (Login/SecureNote/Identity).
- STATUS.md: enterprise-org-vault landed section (merged 7392795) + tracked
  follow-ups + honest known-limitations; correct spec citation.
- ROADMAP.md: backend-complete row + phase-2 follow-ups.
- CHANGELOG.md: finalize the enterprise-org-vault Unreleased section (item CRUD
  into Added; Card/Key/Document/Totp + extension + phase-2 into Deferred).

Code (PM-directed dead_code fixes): wire device::current_device_seed by removing
the identical duplicate private fn in org_session.rs (de-dup); #[allow(dead_code)]
+ justification on org_session org_meta_path/load_meta (API completeness, no
command consumes org.json yet). Also silence a 3rd pre-existing test-only warning
(unused relicario() helper in tests/org_init_signing.rs).

Honest deferrals kept explicit throughout: Card/Key/Document/Totp org add/edit
parity, extension org switch/read (Dev-D) + writes, phase-2 (SSO/LDAP, read
audit, per-collection subkeys, HTTP plane). Full workspace cargo test green,
zero warnings. All cited code constants pinned file:line.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TJo44YM3UbBjro2fG6NrKy

docs/FORMATS.md

@@ -121,9 +121,9 @@ Contrast with the personal vault manifest: `Manifest` uses `MANIFEST_SCHEMA_VERS
 
 Standard `.enc` blob (see **Encrypted blob** above), encrypted under the org master key. The blob itself does **not** name its collection — the directory path segment carries the slug. This allows the pre-receive hook (`relicario-server`) to authorize a write by path segment without decrypting the blob.
 
-**TODO (pending Dev-B B9–B14):** CLI commands for creating, reading, editing, and deleting org items (`org add` / `get` / `list` / `edit` / `rm` / `restore` / `purge`) are not yet wired in `main.rs`.
+These blobs are written and read by the `relicario org` item commands (`org add` / `get` / `list` / `edit` / `rm` / `restore` / `purge`), all collection-scoped and grant-enforced. `org add` currently creates Login / SecureNote / Identity items; `get` / `list` display any item type present.
 
-**TODO (extension follow-up):** extension UI for browsing and editing org vault items.
+**TODO (extension follow-up):** extension UI for browsing and editing org vault items. **Deferred:** `org add` / `edit` parity for Card / Key / Document / Totp item types.
 
 ## Item IDs and Field IDs