fix: add logging to silent except Exception handlers across codebase

Add logger.exception() calls to 20 silent except Exception handlers
that were swallowing errors without any logging, making production
debugging extremely difficult.

Files fixed:
- timmy/loop_qa.py (6 handlers in probe functions + orchestrator)
- timmy/backends.py (2 handlers in health_check methods)
- timmy/tools_delegation/__init__.py (1 handler in _run_kimi)
- timmy/tools_intro/__init__.py (4 handlers in introspection tools)
- dashboard/middleware/request_logging.py (1 handler upgraded debug→warning)
- dashboard/routes/health.py (1 handler in _check_sqlite)
- dashboard/routes/grok.py (2 handlers in query and stats)
- dashboard/routes/voice.py (1 handler in tts_speak)
- dashboard/routes/db_explorer.py (2 handlers in _query_database)

No control flow changes — only added logging before existing returns.

Fixes #646

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

src/dashboard/middleware/request_logging.py

@@ -116,7 +116,7 @@ class RequestLoggingMiddleware(BaseHTTPMiddleware):
                     },
                 )
             except Exception as exc:
-                logger.debug("Escalation logging error: %s", exc)
+                logger.warning("Escalation logging error: %s", exc)
                 pass  # never let escalation break the request
 
             # Re-raise the exception

src/dashboard/routes/db_explorer.py

@@ -75,6 +75,7 @@ def _query_database(db_path: str) -> dict:
                         "truncated": count > MAX_ROWS,
                     }
                 except Exception as exc:
+                    logger.exception("Failed to query table %s", table_name)
                     result["tables"][table_name] = {
                         "error": str(exc),
                         "columns": [],
@@ -83,6 +84,7 @@ def _query_database(db_path: str) -> dict:
                         "truncated": False,
                     }
     except Exception as exc:
+        logger.exception("Failed to query database %s", db_path)
         result["error"] = str(exc)
 
     return result

src/dashboard/routes/grok.py

@@ -135,6 +135,7 @@ def _run_grok_query(message: str) -> dict:
         result = backend.run(message)
         return {"response": f"**[Grok]{invoice_note}:** {result.content}", "error": None}
     except Exception as exc:
+        logger.exception("Grok query failed")
         return {"response": None, "error": f"Grok error: {exc}"}
 
 
@@ -193,6 +194,7 @@ async def grok_stats():
             "model": settings.grok_default_model,
         }
     except Exception as exc:
+        logger.exception("Failed to load Grok stats")
         return {"error": str(exc)}
 
 

src/dashboard/routes/health.py

@@ -148,6 +148,7 @@ def _check_sqlite() -> DependencyStatus:
             details={"path": str(db_path)},
         )
     except Exception as exc:
+        logger.exception("SQLite health check failed")
         return DependencyStatus(
             name="SQLite Database",
             status="unavailable",

src/dashboard/routes/voice.py

@@ -59,6 +59,7 @@ async def tts_speak(text: str = Form(...)):
         voice_tts.speak(text)
         return {"spoken": True, "text": text}
     except Exception as exc:
+        logger.exception("TTS speak failed")
         return {"spoken": False, "reason": str(exc)}
 
 

src/timmy/backends.py

@@ -264,6 +264,7 @@ class GrokBackend:
                 },
             }
         except Exception as exc:
+            logger.exception("Grok health check failed")
             return {
                 "ok": False,
                 "error": str(exc),
@@ -430,6 +431,7 @@ class ClaudeBackend:
             )
             return {"ok": True, "error": None, "backend": "claude", "model": self._model}
         except Exception as exc:
+            logger.exception("Claude health check failed")
             return {"ok": False, "error": str(exc), "backend": "claude", "model": self._model}
 
     # ── Private helpers ───────────────────────────────────────────────────

src/timmy/loop_qa.py

@@ -97,6 +97,7 @@ async def probe_tool_use() -> dict:
             "error_type": "empty_result",
         }
     except Exception as exc:
+        logger.exception("Tool use probe failed")
         return {
             "success": False,
             "capability": cap,
@@ -129,6 +130,7 @@ async def probe_multistep_planning() -> dict:
             "error_type": "verification_failed",
         }
     except Exception as exc:
+        logger.exception("Multistep planning probe failed")
         return {
             "success": False,
             "capability": cap,
@@ -151,6 +153,7 @@ async def probe_memory_write() -> dict:
             "error_type": None,
         }
     except Exception as exc:
+        logger.exception("Memory write probe failed")
         return {
             "success": False,
             "capability": cap,
@@ -179,6 +182,7 @@ async def probe_memory_read() -> dict:
             "error_type": "empty_result",
         }
     except Exception as exc:
+        logger.exception("Memory read probe failed")
         return {
             "success": False,
             "capability": cap,
@@ -214,6 +218,7 @@ async def probe_self_coding() -> dict:
             "error_type": "verification_failed",
         }
     except Exception as exc:
+        logger.exception("Self-coding probe failed")
         return {
             "success": False,
             "capability": cap,
@@ -325,6 +330,7 @@ class LoopQAOrchestrator:
             result = await probe_fn()
         except Exception as exc:
             # Probe itself crashed — record failure and report
+            logger.exception("Loop QA probe %s crashed", cap.value)
             capture_error(exc, source="loop_qa", context={"capability": cap.value})
             result = {
                 "success": False,

src/timmy/tools_delegation/__init__.py

@@ -139,6 +139,7 @@ def _run_kimi(cmd: list[str], workdir: str) -> dict[str, Any]:
             "error": "Kimi timed out after 300s. Task may be too broad — try breaking it into smaller pieces.",
         }
     except Exception as exc:
+        logger.exception("Failed to run Kimi subprocess")
         return {
             "success": False,
             "error": f"Failed to run Kimi: {exc}",

src/timmy/tools_intro/__init__.py

@@ -122,6 +122,7 @@ def check_ollama_health() -> dict[str, Any]:
             models = response.json().get("models", [])
             result["available_models"] = [m.get("name", "") for m in models]
     except Exception as e:
+        logger.exception("Ollama health check failed")
         result["error"] = str(e)
 
     return result
@@ -289,6 +290,7 @@ def get_live_system_status() -> dict[str, Any]:
     try:
         result["system"] = get_system_info()
     except Exception as exc:
+        logger.exception("Failed to get system info")
         result["system"] = {"error": str(exc)}
 
     # Task queue
@@ -301,6 +303,7 @@ def get_live_system_status() -> dict[str, Any]:
     try:
         result["memory"] = get_memory_status()
     except Exception as exc:
+        logger.exception("Failed to get memory status")
         result["memory"] = {"error": str(exc)}
 
     # Uptime
@@ -406,4 +409,5 @@ def run_self_tests(scope: str = "fast", _repo_root: str | None = None) -> dict[s
     except subprocess.TimeoutExpired:
         return {"success": False, "error": "Test run timed out (120s limit)"}
     except Exception as exc:
+        logger.exception("Self-test run failed")
         return {"success": False, "error": str(exc)}