Python:DevUI Fixes (#1035)

* fix event reset on thread change, enable multiline input, enable pasting of files and screenshots

* UI updates and improved remove discovery

* ui and other fixes

---------

Co-authored-by: Evan Mattson <35585003+moonbox3@users.noreply.github.com>

python/packages/devui/agent_framework_devui/models/_discovery_models.py

@@ -2,11 +2,22 @@
 
 """Discovery API models for entity information."""
 
+from __future__ import annotations
+
 from typing import Any
 
 from pydantic import BaseModel, Field
 
 
+class EnvVarRequirement(BaseModel):
+    """Environment variable requirement for an entity."""
+
+    name: str
+    description: str
+    required: bool = True
+    example: str | None = None
+
+
 class EntityInfo(BaseModel):
     """Entity information for discovery and detailed views."""
 
@@ -19,6 +30,13 @@ class EntityInfo(BaseModel):
     tools: list[str | dict[str, Any]] | None = None
     metadata: dict[str, Any] = Field(default_factory=dict)
 
+    # Source information
+    source: str = "directory"  # "directory", "in_memory", "remote_gallery"
+    original_url: str | None = None
+
+    # Environment variable requirements
+    required_env_vars: list[EnvVarRequirement] | None = None
+
     # Workflow-specific fields (populated only for detailed info requests)
     executors: list[str] | None = None
     workflow_dump: dict[str, Any] | None = None

python/packages/devui/agent_framework_devui/models/_openai_custom.py

@@ -6,6 +6,8 @@ These are custom event types that extend beyond the standard OpenAI Responses AP
 to support Agent Framework specific features like workflows, traces, and function results.
 """
 
+from __future__ import annotations
+
 from typing import Any, Literal
 
 from pydantic import BaseModel, ConfigDict
@@ -177,7 +179,7 @@ class OpenAIError(BaseModel):
     error: dict[str, Any]
 
     @classmethod
-    def create(cls, message: str, type: str = "invalid_request_error", code: str | None = None) -> "OpenAIError":
+    def create(cls, message: str, type: str = "invalid_request_error", code: str | None = None) -> OpenAIError:
         """Create a standard OpenAI error response."""
         error_data = {"message": message, "type": type, "code": code}
         return cls(error=error_data)