Gate JSDoc completeness on every package export

New doc-sync gate verify-export-jsdoc walks every module-level exported
name under packages/*/*/src and requires description prose everywhere,
plus @param per parameter and @returns on non-void annotated returns for
function-like exports, public class methods, properties, and accessors.
The parsing + check helpers move out of gen-cordis-catalog.ts into a
shared scripts/jsdoc.ts so 'documented' means one thing on both gated
surfaces.

Deliberate exemptions (documented in the RFC): heritage-declared class
members (the seam declaration is the doc's one home — the one checker
query in an otherwise pure-AST walk), cordis plugin-protocol slots
(name/inject/reusable/Config/apply, top-level and static), constructors,
overload implementations, declare-module augmentation bodies, and
re-export statements (checked at the defining module).

The 203 under-documented exports the gate found at adoption are filled
in this change, so the gate lands green; generated catalogs/graphs are
regenerated for the shifted line pointers.

RFC: docs/rfc/implemented/process/2026-07-06-export-surface-jsdoc-gate.md

packages/llm/llm-deepseek/src/adapter.ts

@@ -13,7 +13,9 @@ import { parseSse } from './sse.ts'
 import { translate } from './translate.ts'
 import type { WireError } from './types.ts'
 
+/** Constructor options for {@link DeepSeekAdapter}; the plugin's `apply` resolves them from Config + environment. */
 export interface DeepSeekAdapterOptions {
+  /** Bearer token sent in the `authorization` header on every request. */
   apiKey: string
   /** Endpoint base; `/chat/completions` is appended. */
   baseURL: string
@@ -21,7 +23,11 @@ export interface DeepSeekAdapterOptions {
   defaults?: RequestDefaults
 }
 
-/** Map an HTTP status to a stable LlmError code. */
+/**
+ * Map an HTTP status to a stable LlmError code.
+ * @param status - status of a non-2xx provider response.
+ * @returns `AUTH` (401/403), `RATE_LIMIT` (429), `INVALID_REQUEST` (400), `SERVER` (5xx), or `HTTP_<status>` for anything else.
+ */
 export function httpErrorCode(status: number): string {
   if (status === 401 || status === 403) return 'AUTH'
   if (status === 429) return 'RATE_LIMIT'