fix(sandbox): harden the per-session record and the ACL runner failure paths (review round v6)

Durable record: bound to the owning session id and validated at the fold (orphan-SID shape, temp path inside the host temp root) — a fork's copied parent record no longer provisions the child, and a tampered record fails loud. Private temp dir: random unguessable name persisted in the record, created exclusively (pre-existing entries and reparse points fail EEXIST). Persistence: a fresh provision kicks an immediate flush (no write-behind debounce), narrowing the crash window to the flush latency — documented as the one self-healing gap. Runner-failure rules: exit-gated on 127 so a confined command that prints the signature on a non-127 exit is never misclassified. Spawn: AssignProcessToJobObject failure terminates the suspended child (no hanging orphans). SandboxExecutionPolicy.sessionId is the branded SessionId. Boundary docs: qualifying clause on the absolutist sentences, NULL-DACL Known Limitation, 'full' scoped to the supported NTFS surface, CLM gate comment.

packages/cordis/tool-cordis/src/api-catalog.ts

@@ -2413,7 +2413,7 @@ export const TYPE_API: readonly TypeApiEntry[] = [
   },
   {
     name: 'SandboxExecutionPolicy',
-    declaration: 'export interface SandboxExecutionPolicy {\n    mode: SandboxMode;\n    workspaceRoot: string;\n    sessionId?: string;\n}',
+    declaration: 'export interface SandboxExecutionPolicy {\n    mode: SandboxMode;\n    workspaceRoot: string;\n    sessionId?: SessionId;\n}',
   },
   {
     name: 'SandboxMode',