fix: address PR review feedback - type safety and naming consistency

- Replace `any` with `unknown`/`RemovableResource` in registry.ts
- Remove unused `computeDefaultIdentityEnvVarName` alias from
  CredentialPrimitive and credential-utils

Author: tejaskash

src/cli/primitives/CredentialPrimitive.tsx

@@ -193,7 +193,6 @@ export class CredentialPrimitive extends BasePrimitive<AddCredentialOptions, Rem
   }
 
   static computeDefaultCredentialEnvVarName = computeDefaultCredentialEnvVarName;
-  static computeDefaultIdentityEnvVarName = computeDefaultCredentialEnvVarName;
 
   /**
    * Resolve credential strategy for adding an agent.

src/cli/primitives/credential-utils.ts

@@ -6,6 +6,3 @@
 export function computeDefaultCredentialEnvVarName(credentialName: string): string {
   return `AGENTCORE_CREDENTIAL_${credentialName.replace(/-/g, '_').toUpperCase()}`;
 }
-
-// Alias for backward compatibility
-export const computeDefaultIdentityEnvVarName = computeDefaultCredentialEnvVarName;

src/cli/primitives/registry.ts

@@ -4,6 +4,7 @@ import { CredentialPrimitive } from './CredentialPrimitive';
 import { GatewayPrimitive } from './GatewayPrimitive';
 import { GatewayTargetPrimitive } from './GatewayTargetPrimitive';
 import { MemoryPrimitive } from './MemoryPrimitive';
+import type { RemovableResource } from './types';
 
 /**
  * Singleton instances of all primitives.
@@ -17,8 +18,7 @@ export const gatewayTargetPrimitive = new GatewayTargetPrimitive();
 /**
  * All primitives in display order.
  */
-// eslint-disable-next-line @typescript-eslint/no-explicit-any
-export const ALL_PRIMITIVES: BasePrimitive<any, any>[] = [
+export const ALL_PRIMITIVES: BasePrimitive<unknown, RemovableResource>[] = [
   agentPrimitive,
   memoryPrimitive,
   credentialPrimitive,
@@ -29,8 +29,7 @@ export const ALL_PRIMITIVES: BasePrimitive<any, any>[] = [
 /**
  * Look up a primitive by its kind.
  */
-// eslint-disable-next-line @typescript-eslint/no-explicit-any
-export function getPrimitive(kind: string): BasePrimitive<any, any> {
+export function getPrimitive(kind: string): BasePrimitive<unknown, RemovableResource> {
   const primitive = ALL_PRIMITIVES.find(p => p.kind === kind);
   if (!primitive) {
     throw new Error(`Unknown primitive kind: ${kind}`);