Create state-machine version 0.1

arch/state-machine.md

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+# State Machine for an Agentic Workflow
+Below is the state machine of an agentic workflow on a BAP
+
+```mermaid
+stateDiagram-v2
+    [*] --> AgentOrchestrator
+    
+    AgentOrchestrator --> DiscoveryAgent
+    AgentOrchestrator --> PriceNegotiationAgent
+    AgentOrchestrator --> TermsNegotiationAgent
+    AgentOrchestrator --> FulfillmentAgent
+    AgentOrchestrator --> SupportAgent
+    
+    DiscoveryAgent --> PriceNegotiationAgent
+    DiscoveryAgent --> TermsNegotiationAgent
+    PriceNegotiationAgent --> ConfirmationAgent
+    TermsNegotiationAgent --> ConfirmationAgent
+    ConfirmationAgent --> FulfillmentAgent
+    
+    FulfillmentAgent --> TrackingAgent
+    FulfillmentAgent --> CancellationAgent
+    FulfillmentAgent --> ModificationAgent
+    
+    CancellationAgent --> FulfillmentAgent
+    CancellationAgent --> SupportAgent
+    
+    ModificationAgent --> FulfillmentAgent
+    
+    TrackingAgent --> SupportAgent
+    SupportAgent --> Tool
+    RatingAgent --> SupportAgent
+
+    PriceNegotiationAgent --> DiscoveryAgent : Continue browsing after price negotiation
+    TermsNegotiationAgent --> DiscoveryAgent : Return to browsing due to undesirable terms
+    TermsNegotiationAgent --> PriceNegotiationAgent : Adjust price based on terms
+    PriceNegotiationAgent --> TermsNegotiationAgent : Adjust terms based on pricing
+    ConfirmationAgent --> TermsNegotiationAgent : Revisit terms before confirming
+    
+    FulfillmentAgent --> ModificationAgent : Update fulfillment based on modifications
+    FulfillmentAgent --> TrackingAgent : Reverse connection to update fulfillment
+    SupportAgent --> DiscoveryAgent : Assist in rediscovering services
+    SupportAgent --> PriceNegotiationAgent : Assist in pricing-related issues
+    SupportAgent --> TermsNegotiationAgent : Assist in terms-related issues
+    CancellationAgent --> TermsNegotiationAgent : Renegotiate terms before cancellation
+    RatingAgent --> FulfillmentAgent : Feedback for fulfillment process