Remove LD support from deprecated LangChain, BeeAI, and Prometheus models

Change OpenAi, Ollama, Anthropic, LangChain, and BeeAI from FlagAwareModel
to plain BaseModel since they don't need LaunchDarkly overrides and
LangChain/BeeAI are being deprecated. Prometheus already used BaseModel.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: aniket-s-kulkarni

src/dremioai/config/settings.py

@@ -304,20 +304,23 @@ def prometheus_metrics_port(self) -> int | None:
         return self.metrics.port if self.metrics is not None else None
 
 
-class OpenAi(FlagAwareModel):
+class OpenAi(BaseModel):
     api_key: Annotated[str, AfterValidator(_resolve_token_file)] = None
     model: Optional[str] = Field(default="gpt-4o")
     org: Optional[str] = Field(default=None)
+    model_config = ConfigDict(validate_assignment=True)
 
 
-class Ollama(FlagAwareModel):
+class Ollama(BaseModel):
     model: Optional[str] = Field(default="llama3.1")
+    model_config = ConfigDict(validate_assignment=True)
 
 
-class LangChain(FlagAwareModel):
+class LangChain(BaseModel):
     llm: Optional[Model] = None
     openai: Optional[OpenAi] = Field(default_factory=OpenAi)
     ollama: Optional[Ollama] = Field(default=None)
+    model_config = ConfigDict(validate_assignment=True)
 
 
 class Prometheus(BaseModel):
@@ -344,17 +347,19 @@ class MCPServer(BaseModel):
     model_config = ConfigDict(validate_assignment=True)
 
 
-class Anthropic(FlagAwareModel):
+class Anthropic(BaseModel):
     api_key: Annotated[str, AfterValidator(_resolve_token_file)] = None
     chat_model: Optional[str] = Field(default=None)
+    model_config = ConfigDict(validate_assignment=True)
 
 
-class BeeAI(FlagAwareModel):
+class BeeAI(BaseModel):
     mcp_server: Optional[MCPServer] = Field(default=None)
     sliding_memory_size: Optional[int] = Field(default=10)
     anthropic: Optional[Anthropic] = Field(default=None)
     openai: Optional[OpenAi] = Field(default=None)
     ollama: Optional[Ollama] = Field(default=None)
+    model_config = ConfigDict(validate_assignment=True)
 
 
 class Settings(FlagAwareMixin, BaseSettings):

tests/config/golden_flag_keys.yaml

@@ -1,12 +1,5 @@
 flag_keys:
-- beeai.anthropic.api_key
-- beeai.anthropic.chat_model
-- beeai.mcp_server
-- beeai.ollama.model
-- beeai.openai.api_key
-- beeai.openai.model
-- beeai.openai.org
-- beeai.sliding_memory_size
+- beeai
 - dremio.allow_dml
 - dremio.api.http_retry.backoff_multiplier
 - dremio.api.http_retry.initial_delay
@@ -22,11 +15,7 @@ flag_keys:
 - dremio.raw_project_id
 - dremio.uri
 - dremio.wlm.engine_name
-- langchain.llm
-- langchain.ollama.model
-- langchain.openai.api_key
-- langchain.openai.model
-- langchain.openai.org
+- langchain
 - launchdarkly
 - log_level
 - prometheus