docs(permissions): re-anchor the system-context census after the fourth merge

`--fix` rewrote 5 anchors on row 50 and REFUSED ZERO files — the signal that
this is a pure line shift, not a population change. Verified structurally
against `origin/main`'s own census rather than by reading the rewritten lines:
same 105 elevation read sites, same 44 files, same 19 packages, same per-site
identity text, `staleLedgerRows` empty on both sides, and the only delta a
+12 / +44 shift inside `packages/rest/src/rest-server.ts` — this branch's two
insertion points. Zero sites arrived, zero vanished.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01D47qPfEWVPmhguWgBZCi5N

Author: claude

content/docs/permissions/system-context.mdx

@@ -158,7 +158,7 @@ The largest single consumer — **17 of the 105 sites**.
 |:--|:---|:---|:---|:---|
 | 48 | Object API-exposure gate bypassed (`apiEnabled` / `apiMethods`) | runtime | Get: internal self-writes ignore exposure declarations — these govern **external** exposure, not engine self-writes | `action-execution.ts:138` |
 | 49 | Action `requiredPermissions` bypassed | runtime | Get: engine self-invocation runs any action | `action-execution.ts:401` |
-| 50 | `manage_metadata` bypassed on metadata writes | runtime, rest | Get: schema writes without the capability | `domains/meta.ts:471`, `:874`, `rest-server.ts:5101`, `:6527`, `:6775`, `:7206`, `:7399` |
+| 50 | `manage_metadata` bypassed on metadata writes | runtime, rest | Get: schema writes without the capability | `domains/meta.ts:471`, `:874`, `rest-server.ts:5145`, `:6571`, `:6819`, `:7250`, `:7443` |
 | 51 | The shared metadata-write verdict itself returns `allowed` | metadata-core | Get: the one function all of row 50's doors consult answers yes before any capability is examined | `meta-write-capability.ts:134` |
 | 52 | Anonymous-deny seam satisfied on the domain dispatchers and the package/federation routes | runtime, rest | Get: passes with no `userId` | `domains/actions.ts:421`, `domains/ai.ts:60`, `domains/automation.ts:989`, `domains/meta.ts:232`, `domains/security.ts:78`, `domains/packages.ts:422`, `external-datasource-routes.ts:302`, `package-routes.ts:97` |
 | 53 | MCP principal check satisfied | runtime | Get: MCP surface reachable with no user | `domains/mcp.ts:61` |