Refactor backend to use agent_framework and af modules

Replaced references to deprecated Semantic Kernel and v3 modules with agent_framework (af) equivalents throughout backend, database, and test files. Removed obsolete messages_kernel and utils_kernel files, updated import paths, and fixed minor typos. Updated documentation and README to reflect new entry points and usage.

Author: Fr4nc3

docs/DeploymentGuide.md

@@ -1,4 +1,5 @@
 ## Execute backend API Service
+
 ```shell
-uv run uvicorn app_kernel:app --port 8000
-```
+uv run uvicorn app:app --port 8000
+```

src/backend/README.md

@@ -12,7 +12,7 @@
 import logging
 from typing import Any, Dict, List, Union
 
-from common.models.messages_kernel import TeamAgent, TeamConfiguration
+from common.models.messages_af import TeamAgent, TeamConfiguration
 from af.common.services.team_service import TeamService
 
 

src/backend/af/common/services/agents_service.py

@@ -19,9 +19,9 @@
     ORCHESTRATOR_TASK_LEDGER_PLAN_UPDATE_PROMPT,
 )
 
-from v3.config.settings import connection_config, orchestration_config
-from v3.models.models import MPlan
-from v3.orchestration.helper.plan_to_mplan_converter import PlanToMPlanConverter
+from af.config.settings import connection_config, orchestration_config
+from af.models.models import MPlan
+from af.orchestration.helper.plan_to_mplan_converter import PlanToMPlanConverter
 
 logger = logging.getLogger(__name__)
 

src/backend/af/orchestration/human_approval_manager.py

@@ -6,7 +6,7 @@
 from typing import List, Optional, Callable, Awaitable
 
 from common.config.app_config import config
-from common.models.messages_kernel import TeamConfiguration
+from common.models.messages_af import TeamConfiguration
 
 # agent_framework imports
 from agent_framework import ChatMessage, Role, ChatOptions
@@ -184,7 +184,7 @@ async def get_current_or_new_orchestration(
                                 cls.logger.error("Error closing agent: %s", e)
 
             # Build new participants via existing factory (still semantic-kernel path maybe; update separately if needed)
-            from v3.magentic_agents.magentic_agent_factory import MagenticAgentFactory  # local import to avoid circular
+            from af.magentic_agents.magentic_agent_factory import MagenticAgentFactory  # local import to avoid circular
 
             factory = MagenticAgentFactory()
             agents = await factory.get_agents(user_id=user_id, team_config_input=team_config)

src/backend/af/orchestration/orchestration_manager.py

@@ -4,11 +4,11 @@
 import logging
 from typing import Any, Dict, List, Optional, Type
 
-import v3.models.messages as messages
+import af.models.messages as messages
 from azure.cosmos.aio import CosmosClient
 from azure.cosmos.aio._database import DatabaseProxy
 
-from ..models.messages_kernel import (
+from ..models.messages_af import (
     AgentMessage,
     AgentMessageData,
     BaseDataModel,

src/backend/common/database/cosmosdb.py

@@ -3,9 +3,9 @@
 from abc import ABC, abstractmethod
 from typing import Any, Dict, List, Optional, Type
 
-import v3.models.messages as messages
+import af.models.messages as messages
 
-from ..models.messages_kernel import (
+from ..models.messages_af import (
     AgentMessageData,
     BaseDataModel,
     Plan,

src/backend/common/database/database_base.py

@@ -255,4 +255,4 @@ class AgentMessageData(BaseDataModel):
     content: str
     raw_data: str
     steps: List[Any] = Field(default_factory=list)
-    next_steps: List[Any] = Field(default_factory=list
+    next_steps: List[Any] = Field(default_factory=list)