feat(llm-deepseek): support low reasoning effort

docs/config-catalog.i18n.yaml

@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write docs/config-catalog.md
-config-catalog.md: 20919b3fdc5ab26255465949d72bdce8d356a529
-config-catalog.zh.md: 8dfb49df5e3f5906af859a4de83ebc44f315a0bd
+config-catalog.md: 82f6d26c79d32c6952f3bc11c96fa1c2ddceecdc
+config-catalog.zh.md: 958d3115447db37de248bbf30b0744308ff8dbb8

docs/config-catalog.md

@@ -859,7 +859,7 @@ export interface Config {
   /** Deployment thinking policy; `disabled` limits every conversation request to `off`. */
   thinking?: 'enabled' | 'disabled'
   /** Default thinking effort (default `high`); `off` disables thinking per request. */
-  reasoningEffort?: 'off' | 'high' | 'max'
+  reasoningEffort?: 'off' | 'low' | 'high' | 'max'
   /** Default per-request output cap (default 256,000); a model's own cap and explicit request values win. */
   maxTokens?: number
   /** Positive context capacity used when the selected model has no exact value (default 1,000,000). */

docs/config-catalog.zh.md

@@ -861,7 +861,7 @@ export interface Config {
   /** Deployment thinking policy; `disabled` limits every conversation request to `off`. */
   thinking?: 'enabled' | 'disabled'
   /** Default thinking effort (default `high`); `off` disables thinking per request. */
-  reasoningEffort?: 'off' | 'high' | 'max'
+  reasoningEffort?: 'off' | 'low' | 'high' | 'max'
   /** Default per-request output cap (default 256,000); a model's own cap and explicit request values win. */
   maxTokens?: number
   /** Positive context capacity used when the selected model has no exact value (default 1,000,000). */