docs: update memory tool list, CLI usage, and config file reading logic (#4861)

Co-authored-by: Livia Ellen <liviaellen@msn.com>

openclaw/backend/base.ts

@@ -10,9 +10,7 @@ export interface AddOptions {
   appId?: string;
   runId?: string;
   metadata?: Record<string, unknown>;
-  immutable?: boolean;
   infer?: boolean;
-  expires?: string;
   categories?: string[];
 }
 
@@ -24,7 +22,6 @@ export interface SearchOptions {
   topK?: number;
   threshold?: number;
   rerank?: boolean;
-  keyword?: boolean;
   filters?: Record<string, unknown>;
   fields?: string[];
 }

openclaw/backend/platform.ts

@@ -107,9 +107,7 @@ export class PlatformBackend implements Backend {
     if (opts.appId) payload.app_id = opts.appId;
     if (opts.runId) payload.run_id = opts.runId;
     if (opts.metadata) payload.metadata = opts.metadata;
-    if (opts.immutable) payload.immutable = true;
     if (opts.infer === false) payload.infer = false;
-    if (opts.expires) payload.expiration_date = opts.expires;
     if (opts.categories) payload.categories = opts.categories;
 
     return (await this._request("POST", "/v1/memories/", {
@@ -168,7 +166,6 @@ export class PlatformBackend implements Backend {
     });
     if (apiFilters) payload.filters = apiFilters;
     if (opts.rerank) payload.rerank = true;
-    if (opts.keyword) payload.keyword_search = true;
     if (opts.fields) payload.fields = opts.fields;
 
     const result = (await this._request("POST", "/v2/memories/search/", {