perf(bundle): keep zod out of the documents and Coach client routes

Both routes reached the schema library through a constant: the list of
document kinds, the list and bulk limits, the attachment cap, the Coach
data clusters and preference defaults, the conversation title length,
the scope source list and the report leaf order. Each sat in a schema
module, so importing the number shipped the library. The constants now
live in zod-free modules (lib/documents/inbound-constants,
lib/ai/coach/prefs-constants, lib/ai/coach/scope-sources,
lib/report-selection/catalogue) and the schema modules re-export them
for server code; the Coach page checks its scope parameter against the
closed list instead of parsing it. A guard walks each route's static
client graph with the TypeScript parser and fails on a zod import.

Two guards follow earlier commits in this branch: the fetch-limit
allowlist names the shared document picker sheet, and the card density
test states a floor on the cards it finds.

src/components/documents/document-ai-section.tsx

@@ -36,13 +36,13 @@ import { Button } from "@/components/ui/button";
 import type { AiRunPhase } from "@/hooks/use-ai-run";
 import { useTranslations } from "@/lib/i18n/context";
 import { cn } from "@/lib/utils";
-import {
-  isAiReadSource,
-  type DocumentContentIndexSourceValue,
-  type DocumentIndexOutcomeValue,
-  type DocumentSuggestionDto,
-  type DocumentSummaryMode,
+import type {
+  DocumentContentIndexSourceValue,
+  DocumentIndexOutcomeValue,
+  DocumentSuggestionDto,
+  DocumentSummaryMode,
 } from "@/lib/validations/inbound-documents";
+import { isAiReadSource } from "@/lib/documents/inbound-constants";
 
 import {
   AiRunPhaseNote,

src/components/documents/document-detail-sheet.tsx

@@ -75,14 +75,14 @@ import {
   useFencedObjectUrl,
 } from "@/hooks/use-fenced-object-url";
 import { cn } from "@/lib/utils";
-import {
-  INBOUND_DOCUMENT_KINDS,
-  type DocumentSourceSystemValue,
-  type DocumentSuggestionDto,
-  type DocumentSummaryMode,
-  type InboundDocumentDetailDto,
-  type InboundDocumentKindValue,
+import type {
+  DocumentSourceSystemValue,
+  DocumentSuggestionDto,
+  DocumentSummaryMode,
+  InboundDocumentDetailDto,
+  InboundDocumentKindValue,
 } from "@/lib/validations/inbound-documents";
+import { INBOUND_DOCUMENT_KINDS } from "@/lib/documents/inbound-constants";
 import { DocumentAiSection } from "./document-ai-section";
 import { DocumentEncounterSuggestion } from "./document-encounter-suggestion";
 import { DocumentRecordLinks } from "./document-record-links";

src/components/documents/documents-view.tsx

@@ -61,15 +61,15 @@ import {
 } from "@/lib/insights/coach-launch-context";
 import { invalidateKeys, queryKeys } from "@/lib/query-keys";
 import { useDocumentsLayout } from "@/lib/queries/use-documents-layout";
-import {
-  DOCUMENT_BULK_MAX_IDS,
-  type DocumentBulkAction,
-  type DocumentBulkResultDto,
-  type DocumentUsageDto,
-  type InboundDocumentDetailDto,
-  type InboundDocumentDto,
-  type InboundDocumentKindValue,
+import type {
+  DocumentBulkAction,
+  DocumentBulkResultDto,
+  DocumentUsageDto,
+  InboundDocumentDetailDto,
+  InboundDocumentDto,
+  InboundDocumentKindValue,
 } from "@/lib/validations/inbound-documents";
+import { DOCUMENT_BULK_MAX_IDS } from "@/lib/documents/inbound-constants";
 import { DocumentBulkBar } from "./document-bulk-bar";
 import { DocumentDetailSheet } from "./document-detail-sheet";
 import { DocumentShareSheet } from "./document-share-sheet";

src/components/documents/vault-utils.ts

@@ -7,13 +7,15 @@
  * and byte formatting. Kept out of the client components so they stay
  * trivially unit-testable without a render harness.
  */
+import type {
+  DocumentLinkedProcedureDto,
+  InboundDocumentDto,
+  InboundDocumentKindValue,
+} from "@/lib/validations/inbound-documents";
 import {
   DOCUMENT_LIST_DEFAULT_LIMIT,
   INBOUND_DOCUMENT_KINDS,
-  type DocumentLinkedProcedureDto,
-  type InboundDocumentDto,
-  type InboundDocumentKindValue,
-} from "@/lib/validations/inbound-documents";
+} from "@/lib/documents/inbound-constants";
 import type { DocumentVaultFilters } from "@/lib/query-keys/documents";
 import { userDayKey } from "@/lib/tz/format";