fix: replace deprecated asyncio.iscoroutinefunction with inspect.iscoroutinefunction (#819)

asyncio.iscoroutinefunction is deprecated since Python 3.14 and slated for
removal in 3.16. The inspect equivalent has an identical signature and return
semantics. Replaces 8 call sites across 3 modules to silence DeprecationWarnings
reported in #818.

trustgraph-base/trustgraph/base/prompt_client.py

@@ -1,6 +1,7 @@
 
 import json
 import asyncio
+import inspect
 from dataclasses import dataclass
 from typing import Optional, Any
 
@@ -80,7 +81,7 @@ class PromptClient(RequestResponse):
 
                 if resp.text is not None:
                     if chunk_callback:
-                        if asyncio.iscoroutinefunction(chunk_callback):
+                        if inspect.iscoroutinefunction(chunk_callback):
                             await chunk_callback(resp.text, end_stream)
                         else:
                             chunk_callback(resp.text, end_stream)

trustgraph-flow/trustgraph/query/ontology/error_handling.py

@@ -6,6 +6,7 @@ Provides comprehensive error handling, retry logic, and graceful degradation.
 import logging
 import time
 import asyncio
+import inspect
 from typing import Dict, Any, List, Optional, Callable, Union, Type
 from dataclasses import dataclass
 from enum import Enum
@@ -244,7 +245,7 @@ class ErrorRecoveryStrategy:
         await asyncio.sleep(delay)
 
         try:
-            if asyncio.iscoroutinefunction(operation):
+            if inspect.iscoroutinefunction(operation):
                 return await operation(*args, **kwargs)
             else:
                 return operation(*args, **kwargs)
@@ -260,7 +261,7 @@ class ErrorRecoveryStrategy:
         if fallback_func:
             logger.info(f"Executing fallback for {context.category.value}")
             try:
-                if asyncio.iscoroutinefunction(fallback_func):
+                if inspect.iscoroutinefunction(fallback_func):
                     return await fallback_func(context, *args, **kwargs)
                 else:
                     return fallback_func(context, *args, **kwargs)
@@ -420,7 +421,7 @@ def with_error_handling(category: ErrorCategory,
         @wraps(func)
         async def async_wrapper(*args, **kwargs):
             try:
-                if asyncio.iscoroutinefunction(func):
+                if inspect.iscoroutinefunction(func):
                     return await func(*args, **kwargs)
                 else:
                     return func(*args, **kwargs)
@@ -469,7 +470,7 @@ def with_error_handling(category: ErrorCategory,
                     cause=e
                 )
 
-        if asyncio.iscoroutinefunction(func):
+        if inspect.iscoroutinefunction(func):
             return async_wrapper
         else:
             return sync_wrapper

trustgraph-flow/trustgraph/query/ontology/monitoring.py

@@ -6,6 +6,7 @@ Provides comprehensive monitoring of system performance, query patterns, and res
 import logging
 import time
 import asyncio
+import inspect
 import threading
 from typing import Dict, Any, List, Optional, Callable
 from dataclasses import dataclass, field
@@ -579,7 +580,7 @@ def monitor_performance(component: str,
 
         async def async_wrapper(*args, **kwargs):
             if not monitor or not monitor.monitoring_enabled:
-                if asyncio.iscoroutinefunction(func):
+                if inspect.iscoroutinefunction(func):
                     return await func(*args, **kwargs)
                 else:
                     return func(*args, **kwargs)
@@ -591,7 +592,7 @@ def monitor_performance(component: str,
 
             success = True
             try:
-                if asyncio.iscoroutinefunction(func):
+                if inspect.iscoroutinefunction(func):
                     result = await func(*args, **kwargs)
                 else:
                     result = func(*args, **kwargs)
@@ -603,7 +604,7 @@ def monitor_performance(component: str,
                 duration = monitor.metrics_collector.stop_timer(timer)
                 monitor.record_request(component, operation, duration, success)
 
-        if asyncio.iscoroutinefunction(func):
+        if inspect.iscoroutinefunction(func):
             return async_wrapper
         else:
             return wrapper