refactor(memory): derive VALID_STRATEGIES and help text from schema

Eliminates source-of-truth drift by deriving the valid strategies
array and CLI help text from MemoryStrategyTypeSchema.options
instead of maintaining hand-written duplicates.

Constraint: MemoryStrategyTypeSchema is the single source of truth
Confidence: high
Scope-risk: narrow

Author: aidandaly24

src/cli/commands/add/validate.ts

@@ -4,6 +4,7 @@ import {
   BuildTypeSchema,
   GatewayExceptionLevelSchema,
   GatewayNameSchema,
+  MemoryStrategyTypeSchema,
   ModelProviderSchema,
   ProtocolModeSchema,
   RuntimeAuthorizerTypeSchema,
@@ -33,7 +34,7 @@ export interface ValidationResult {
 
 // Constants
 const MEMORY_OPTIONS = ['none', 'shortTerm', 'longAndShortTerm'] as const;
-const VALID_STRATEGIES = ['SEMANTIC', 'SUMMARIZATION', 'USER_PREFERENCE', 'CUSTOM'];
+const VALID_STRATEGIES: readonly string[] = MemoryStrategyTypeSchema.options;
 
 /**
  * Validate that a credential name exists in the project spec.

src/cli/primitives/MemoryPrimitive.tsx

@@ -1,6 +1,6 @@
 import { findConfigRoot } from '../../lib';
 import type { Memory, MemoryStrategy, MemoryStrategyType } from '../../schema';
-import { DEFAULT_STRATEGY_NAMESPACES, MemorySchema } from '../../schema';
+import { DEFAULT_STRATEGY_NAMESPACES, MemorySchema, MemoryStrategyTypeSchema } from '../../schema';
 import { validateAddMemoryOptions } from '../commands/add/validate';
 import { getErrorMessage } from '../errors';
 import type { RemovalPreview, RemovalResult, SchemaChange } from '../operations/remove/types';
@@ -126,7 +126,7 @@ export class MemoryPrimitive extends BasePrimitive<AddMemoryOptions, RemovableMe
       .option('--name <name>', 'Memory name [non-interactive]')
       .option(
         '--strategies <types>',
-        'Comma-separated strategies: SEMANTIC, SUMMARIZATION, USER_PREFERENCE, CUSTOM [non-interactive]'
+        `Comma-separated strategies: ${MemoryStrategyTypeSchema.options.join(', ')} [non-interactive]`
       )
       .option('--expiry <days>', 'Event expiry duration in days (default: 30) [non-interactive]')
       .option('--json', 'Output as JSON [non-interactive]')