chore(monorepo/server): move server-side source code

apps/server/src/services/llm/interfaces/chat_ws_messages.ts

@@ -0,0 +1,24 @@
+/**
+ * Interfaces for WebSocket LLM streaming messages
+ */
+
+/**
+ * Interface for WebSocket LLM streaming messages
+ */
+export interface LLMStreamMessage {
+    type: 'llm-stream' | 'tool_execution_start' | 'tool_result' | 'tool_execution_error' | 'tool_completion_processing';
+    chatNoteId: string;
+    content?: string;
+    thinking?: string;
+    toolExecution?: {
+        action?: string;
+        tool?: string;
+        toolCallId?: string;
+        result?: string | Record<string, any>;
+        error?: string;
+        args?: Record<string, unknown>;
+    };
+    done?: boolean;
+    error?: string;
+    raw?: unknown;
+}