fix: go back to og agent_configs (our changes were frivalous)

Author: prassanna-ravishankar

src/agentex/lib/types/agent_configs.py

@@ -1,4 +1,4 @@
-from pydantic import BaseModel, Field, field_validator, model_validator
+from pydantic import BaseModel, Field, model_validator, validator
 
 
 class TemporalWorkflowConfig(BaseModel):
@@ -37,9 +37,6 @@ class TemporalWorkerConfig(BaseModel):
     )
 
 
-# Removed CustomHeadersConfig - now using simple list[str] for header_allowlist
-
-
 class TemporalConfig(BaseModel):
     """
     Simplified temporal configuration for agents
@@ -62,16 +59,15 @@ class TemporalConfig(BaseModel):
         description="List of temporal workflow configurations. Used when enabled=true.",
     )
 
-    @field_validator("workflows")
-    @classmethod
-    def validate_workflows_not_empty(cls, v: list[TemporalWorkflowConfig] | None) -> list[TemporalWorkflowConfig] | None:
+    @validator("workflows")
+    def validate_workflows_not_empty(cls, v):
         """Ensure workflows list is not empty when provided"""
         if v is not None and len(v) == 0:
             raise ValueError("workflows list cannot be empty when provided")
         return v
 
     @model_validator(mode="after")
-    def validate_temporal_config_when_enabled(self) -> "TemporalConfig":
+    def validate_temporal_config_when_enabled(self):
         """Validate that workflow configuration exists when enabled=true"""
         if self.enabled:
             # Must have either workflow (legacy) or workflows (new)