chore: re-anchor system-context census lines and pin the new engine doubles

Both are mechanical, gate-driven repairs of this change's own side effects:
the +51 lines in seed-loader.ts moved three cited anchors, and the new
locale-scope test pins engine doubles the contract ledger had not recorded.

Claude-Session: https://claude.ai/code/session_013r78utTbiWqxghcuRJxfZf
Co-authored-by: Claude <noreply@anthropic.com>

Author: claude

content/docs/permissions/system-context.mdx

@@ -194,7 +194,7 @@ assuming `isSystem` covers it is a documented source of bugs.
 
 | Assumption | Reality | Anchor |
 |:---|:---|:---|
-| "It suppresses triggers / record-change automation" | **No.** Only `skipTriggers` does. A bare `{ isSystem: true }` on a seed write re-fired automation on freshly seeded rows and wedged first boot | `metadata-protocol/src/seed-loader.ts:2032` (rationale at `:1942`–`1944`, #3760), `flow.zod.ts:743` |
+| "It suppresses triggers / record-change automation" | **No.** Only `skipTriggers` does. A bare `{ isSystem: true }` on a seed write re-fired automation on freshly seeded rows and wedged first boot | `metadata-protocol/src/seed-loader.ts:2083` (rationale at `:1993`–`1995`, #3760), `flow.zod.ts:743` |
 | "It skips the state machine" | **No.** That is `skipStateMachine`, carried by seed replay and by `treatAsHistorical` imports | `objectql/src/engine.ts` FSM gate; see [State Machine](/docs/protocol/objectql/state-machine) |
 | "It skips validation rules" | **No.** Field shape, `format`, `script` and the rest still run. The `readonly` strip runs *before* validation precisely so a discarded value is not judged | `objectql/src/engine.ts:10398`–`10415` |
 | "It preserves a supplied `updated_at` / `updated_by`" | **No.** That is `preserveAudit`, a separate opt-in — and an UPDATE-path exemption only | `field.zod.ts:1590` (#3493 / #6640) |

scripts/engine-double-contract.pinned.json

@@ -1451,6 +1451,21 @@
       "verb": "update",
       "pinned": 1
     },
+    {
+      "file": "packages/metadata-protocol/src/seed-loader-locale-scope.test.ts",
+      "verb": "delete",
+      "pinned": 1
+    },
+    {
+      "file": "packages/metadata-protocol/src/seed-loader-locale-scope.test.ts",
+      "verb": "findOne",
+      "pinned": 1
+    },
+    {
+      "file": "packages/metadata-protocol/src/seed-loader-locale-scope.test.ts",
+      "verb": "update",
+      "pinned": 1
+    },
     {
       "file": "packages/metadata-protocol/src/seed-loader-multi-value-reference.test.ts",
       "verb": "delete",