fix: Correct AgentProvider and AgentRole enum type annotations

Fixed TypeScript errors where enum values were incorrectly typed:
- Changed `provider: AgentProvider` to `provider: keyof typeof AgentProvider`
- Changed `role: AgentRole` to `role: keyof typeof AgentRole`

This resolves the 'refers to a value, but is being used as a type' errors
in multi-agent factory function parameters.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: alpsla

packages/agents/src/multi-agent/factory.ts

@@ -156,13 +156,13 @@ export class MultiAgentFactory {
     name: string,
     strategy: AnalysisStrategy,
     primaryAgentSelection: {
-      provider: AgentProvider,
-      role: AgentRole,
+      provider: keyof typeof AgentProvider,
+      role: keyof typeof AgentRole,
       position?: AgentPosition
     },
     secondaryAgentSelections: Array<{
-      provider: AgentProvider,
-      role: AgentRole,
+      provider: keyof typeof AgentProvider,
+      role: keyof typeof AgentRole,
       position?: AgentPosition
     }> = [],
     options: {
@@ -234,18 +234,18 @@ export class MultiAgentFactory {
     name: string,
     strategy: AnalysisStrategy,
     primaryConfig: {
-      provider: AgentProvider,
-      role: AgentRole,
+      provider: keyof typeof AgentProvider,
+      role: keyof typeof AgentRole,
       position: AgentPosition
     },
     secondaryConfigs: Array<{
-      provider: AgentProvider,
-      role: AgentRole,
+      provider: keyof typeof AgentProvider,
+      role: keyof typeof AgentRole,
       position: AgentPosition
     }>,
     fallbackConfigs?: Array<{
-      provider: AgentProvider,
-      role: AgentRole,
+      provider: keyof typeof AgentProvider,
+      role: keyof typeof AgentRole,
       position: AgentPosition,
       priority?: number
     }>,